Mazda RX-8 Engine Workshop Manual

HOW TO USE THIS MANUAL

BHE000000001E01

Range of Topics

• This manual contains procedures for performing all required service operations. The procedures are divided into

the following five basic operations:

– Removal/Installation
– Disassembly/Assembly
– Replacement
– Inspection
– Adjustment

• Simple operations which can be performed easily just by looking at the vehicle (i.e., removal/installation of parts,

jacking, vehicle lifting, cleaning of parts, and visual inspection) have been omitted.

Service Procedure

Inspection, adjustment

• Inspection and adjustment procedures are divided into steps. Important points regarding the location and

contents of the procedures are explained in detail and shown in the illustrations.

Repair procedure

1. Most repair operations begin with an overview illustration. It identifies the components, shows how the parts fit
together, and describes visual part inspection. However, only removal/installation procedures that need to be
performed methodically have written instructions.

2. Expendable parts, tightening torques, and symbols for oil, grease, and sealant are shown in the overview
illustration. In addition, symbols indicating parts requiring the use of special service tools or equivalent are also
shown.

3. Procedure steps are numbered and the part that is the main point of that procedure is shown in the illustration
with the corresponding number. Occasionally, there are important points or additional information concerning a
procedure. Refer to this information when servicing the related part.

Symbols

• There are eight symbols indicating oil, grease, fluids, sealant, and the use of SST or equivalent. These symbols

show application points or use of these materials during service.

Symbol Meaning Kind

Apply oil New appropriate engine oil or gear oil

Apply brake fluid New appropriate brake fluid

Apply automatic transaxle/transmission
fluid

New appropriate automatic transaxle/ transmission
fluid

Apply grease Appropriate grease

Apply sealant Appropriate sealant

Apply petroleum jelly Appropriate petroleum jelly

Replace part O-ring, gasket, etc.

Use SST or equivalent Appropriate tools

Advisory Messages

• You will find several Warnings, Cautions, Notes, Specifications and Upper and Lower Limits in this manual.

Warning

• A Warning indicates a situation in which serious injury or death could result if the warning is ignored.

Caution

• A Caution indicates a situation in which damage to the vehicle or parts could result if the caution is ignored.

Note

• A Note provides added information that will help you to complete a particular procedure.

Specification

• The values indicate the allowable range when performing inspections or adjustments.

Upper and lower limits

• The values indicate the upper and lower limits that must not be exceeded when performing inspections or

adjustments.

UNITS

BHE000000002E01

Electric current A (ampere)

Electric power W (watt)

Electric resistance ohm

Electric voltage V (volt)

Length

mm (millimeter)

in (inch)

Negative pressure

kPa (kilo pascal)

mmHg (millimeters of mercury)

inHg (inches of mercury)

Positive pressure

kPa (kilo pascal)

kgf/cm2 (kilogram force per square centimeter)

psi (pounds per square inch)

Number of
revolutions

rpm (revolutions per minute)

Torque

N·m (Newton meter)

kgf·m (kilogram force meter)

kgf·cm (kilogram force centimeter)

ft·lbf (foot pound force)

in·lbf (inch pound force)

Volume

L (liter)

US qt (U.S. quart)

Imp qt (Imperial quart)

ml (milliliter)

cc (cubic centimeter)

cu in (cubic inch)

fl oz (fluid ounce)

Weight

g (gram)

oz (ounce)

Conversion to SI Units (Système International d'Units)

• All numerical values in this manual are based on SI units. Numbers shown in conventional units are converted

from these values.

Rounding Off

• Converted values are rounded off to the same number of places as the SI unit value. For example, if the SI unit

value is 17.2 and the value after conversion is 37.84, the converted value will be rounded off to 37.8.

Upper and Lower Limits

• When the data indicates upper and lower limits, the converted values are rounded down if the SI unit value is an

upper limit and rounded up if the SI unit value is a lower limit. Therefore, converted values for the same SI unit
value may differ after conversion. For example, consider 2.7 kgf/cm2 in the following specifications:

210-260 kPa {2.1-2.7 kgf/cm2, 30-38 psi}
270-310 kPa {2.7-3.2 kgf/cm2, 39-45 psi}

• The actual converted values for 2.7 kgf/cm

2

are 264 kPa and 38.4 psi. In the first specification, 2.7 is used as an
upper limit, so the converted values are rounded down to 260 and 38. In the second specification, 2.7 is used as a
lower limit, so the converted values are rounded up to 270 and 39.

NEW STANDARDS

BHE000000003E02

• Following is a comparison of the previous standard and the new standard.

New Standard Previous Standard

Abbrevi-

ation

Name

Abbrevi-

ation

Name

Remark

AP Accelerator Pedal - Accelerator Pedal

ACL Air Cleaner - Air Cleaner

A/C Air Conditioning - Air Conditioning

BARO Barometric Pressure - Atmospheric Pressure

B+ Battery Positive Voltage Vb Battery Voltage

- Brake Switch - Stoplight Switch

- Calibration Resistor - Corrected Resistance #6

CMP sensor Camshaft Position Sensor - Crank Angle Sensor

CAC Charge Air Cooler - Intercooler

CLS Closed Loop System - Feedback System

CTP Closed Throttle Position - Fully Closed

CPP Clutch Pedal Position - Idle Switch

CIS Continuous Fuel Injection System - Clutch Position

CS sensor Control Sleeve Sensor CSP sensor

Control Sleeve Position
Sensor

#6

CKP sensor Crankshaft Position Sensor - Crank Angle Sensor 2

DLC Data Link Connector - Diagnosis Connector

DTM Diagnostic Test Mode - Test Mode #1

DTC Diagnostic Trouble Code(s) - Service Code(s)

DI Distributor Ignition - Spark Ignition

DLI Distributorless Ignition - Direct Ignition

EI Electronic Ignition - Electronic Spark Ignition #2

ECT Engine Coolant Temperature - Water Thermo

EM Engine Modification - Engine Modification

- Engine Speed Input Signal - Engine RPM Signal

EVAP Evaporative Emission - Evaporative Emission

EGR Exhaust Gas Recirculation -

Exhaust Gas
Recirculation

FC Fan Control - Fan Control

FF Flexible Fuel - Flexible Fuel

4GR Fourth Gear - Overdrive

- Fuel Pump Relay - Circuit Opening Relay #3

FSO solenoid Fuel Shut Off Solenoid FCV Fuel Cut Valve #6

GEN Generator - Alternator

GND Ground - Ground/Earth

HO2S Heated Oxygen Sensor - Oxygen Sensor With heater

IAC Idle Air control - Idle Speed Control

- IDM Relay - Spill Valve Relay #6

- Incorrect Gear Ratio - -

- Injection Pump FIP Fuel Injection Pump #6

- Input/Turbine Speed Sensor - Pulse Generator

IAT Intake Air Temperature - Intake Air Thermo

KS Knock Sensor - Knock Sensor

MIL Malfunction Indicator Lamp -

Malfunction Indicator
Light

MAP Manifold Absolute Pressure - Intake Air Pressure

MAF sensor Mass Air Flow Sensor - Airflow Sensor

MFL Multiport Fuel Injection - Multiport Fuel Injection

OBD On-Board Diagnostic - Diagnosis/SelfDiagnosis

OL Open Loop - Open Loop

- Output Speed Sensor - Vehicle Speed Sensor 1

OC Oxidation Catalytic Converter - Catalytic Converter

O2S Oxygen Sensor - Oxygen Sensor

PNP Park/Neutral Position - Park/Neutral Range

- PCM Control Relay - Main Relay #6

PSP Power Steering Pressure - Power Steering Pressure

PCM Powertrain Control Module ECU Engine Control Unit #4

- Pressure Control Solenoid -

Line Pressure Solenoid
Valve

PAIR Pulsed Secondary Air Injection -

Secondary Air Injection
System

Pulsed injection

- Pump Speed Sensor - NE Sensor #6

AIR Secondary Air Injection -

Secondary Air Injection
System

Injection with air
pump

SAPV Secondary Air Pulse Valve - Reed Valve

SFI Sequential Multipoint Fuel Injection - Sequential Fuel Injection

- Shift Solenoid A

- 12 Shift Solenoid Valve

- Shift A Solenoid Valve

- Shift Solenoid B

- 23 Shift Solenoid Valve

- Shift B Solenoid Valve

- Shift Solenoid C - 34 Shift Solenoid Valve

3GR Third Gear - 3rd Gear

TWC Three Way Catalytic Converter - Catalytic Converter

TB Throttle Body - Throttle Body

TP sensor Throttle Position Sensor - Throttle Sensor

TCV Timer Control Valve TCV Timing Control Valve #6

TCC Torque Converter Clutch - Lockup Position

TCM

Transmission (Transaxle) Control
Module

- EC-AT Control Unit

-

Transmission (Transaxle) Fluid
Temperature Sensor

- ATF Thermosensor

TR Transmission (Transaxle) Range - Inhibitor Position

TC Turbocharger - Turbocharger

VSS Vehicle Speed Sensor - Vehicle Speed Sensor

VR Voltage Regulator - IC Regulator

VAF sensor Volume Air Flow Sensor - Air flow Sensor

WUTWC

Warm Up Three Way Catalytic
Converter

- Catalytic Converter #5

WOT Wide Open Throttle - Fully Open

#1 : Diagnostic trouble codes depend on the diagnostic test mode
#2 : Controlled by the PCM
#3 : In some models, there is a fuel pump relay that controls pump speed. That relay is now called the fuel
pump relay (speed).
#4 : Device that controls engine and powertrain
#5 : Directly connected to exhaust manifold
#6 : Part name of diesel engine

FUNDAMENTAL PROCEDURES

BHE000000004E01

Preparation of Tools and Measuring Equipment

• Be sure that all necessary tools and measuring equipment are available before starting any work.

Special Service Tools

• Use special service tools or equivalent when they are

required.

Disassembly

• If the disassembly procedure is complex, requiring many parts to be disassembled, all parts should be marked in

a place that will not affect their performance or external appearance and identified so that reassembly can be
performed easily and efficiently.

Inspection During Removal,
Disassembly

• When removed, each part should be carefully inspected

for malfunction, deformation, damage and other problems.

Arrangement of Parts

• All disassembled parts should be carefully arranged for

reassembly.

• Be sure to separate or otherwise identify the parts to be

replaced from those that will be reused.

Cleaning of Parts

• All parts to be reused should be carefully and thoroughly

cleaned in the appropriate method.

Warning

• Using compressed air can cause dirt and other

particles to fly out causing injury to the eyes. Wear
protective eye wear whenever using compressed
air.

Reassembly

• Standard values, such as torques and certain adjustments, must be strictly observed in the reassembly of all

parts.

• If removed, the following parts should be replaced with

new ones:

– Oil seals
– Gaskets
– O-rings
– Lockwashers
– Cotter pins
– Nylon nuts

• Depending on location:

– Sealant and gaskets, or both, should be applied to

specified locations. When sealant is applied, parts
should be installed before sealant hardens to
prevent leakage.

– Oil should be applied to the moving components

of parts.

– Specified oil or grease should be applied at the

prescribed locations (such as oil seals) before
reassembly.

Adjustment

• Use suitable gauges and testers when making adjustments.

Rubber Parts and Tubing

• Prevent gasoline or oil from getting on rubber parts or

tubing.

Hose Clamps

• When reinstalling, position the hose clamp in the original

location on the hose and squeeze the clamp lightly with
large pliers to ensure a good fit.

Torque Formulas

• When using a torque wrench-SST or equivalent

combination, the written torque must be recalculated due
to the extra length that the SST or equivalent adds to the
torque wrench. Recalculate the torque by using the
following formulas. Choose the formula that applies to you.

Torque Unit Formula

N·m N·m × [L/(L+A)]

kgf·m kgf·m × [L/(L+A)]

kgf·cm kgf·cm × [L/(L+A)]

ft·lbf ft·lbf × [L/(L+A)]

in·lbf in·lbf × [L/(L+A)]

A : The length of the SST past the torque wrench
drive.
L : The length of the torque wrench.

Vise

• When using a vise, put protective plates in the jaws of the vise to prevent damage to parts.

ELECTRICAL SYSTEM

BHE000000006E01

Connectors

Disconnecting connectors

• When disconnecting connector, grasp the

connectors, not the wires.

• Connectors can be disconnected by

pressing or pulling the lock lever as shown.

Locking connector

• When locking connectors, listen for a click

indicating they are securely locked.

Inspection

• When a tester is used to inspect for continuity or measuring voltage, insert the tester probe from the wiring

harness side.

• Inspect the terminals of waterproof connectors from the connector side since they cannot be accessed from

the wiring harness side.

Caution

• To prevent damage to the terminal, wrap a thin wire around the tester probe before inserting into terminal.

ABBREVIATIONS

BHE000000011E01

AT Automatic Transmission

MT Manual Transmission

SST Special Service Tool

ENGINE TECHNICAL DATA

BHE015001001E01

ITEMS

ENGINE TYPE

13B-MSP

STANDARD POWER HIGH POWER

SIDE HOUSING (FRONT, INTERMEDIATE, REAR) INSPECTION

Maximum distortion (mm {in}) 0.04 {0.0016}

Maximum wear
(Vertical wear)

(mm {in}) 0.10 {0.0039}

Maximum wear
(Convex oval)

(mm {in})

Oil seal inner path 0.01 {0.0004}

Oil seal outer path 0.10 {0.0039}

Maximum wear
(Oil seal stepped path wear)

(mm {in}) 0.02 {0.0008}

ROTOR HOUSING

Maximum width difference (mm {in}) 0.06 {0.0024}

ROTOR

Rotor and side housing clearance (mm {in})

Standard 0.05-0.19 {0.0020-0.0074}

Maximum 0.05 {0.002}

Protrusion of the rotor round (mm {in})

Standard 0.12-0.18 {0.0048-0.0070}

Minimum 0.1 {0.0039}

Apex seal groove and the apex seal clearance (mm {in})

Standard 0.042-0.101 {0.0017-0.0039}

Maximum 0.15 {0.0059}

APEX SEAL, APEX SEAL SPRING

Apex seal height (mm {in})

Standard 5.3 {0.20}

Minimum 4.3 {0.17}

Apex seal spring height (mm {in})

Standard 5.4 {0.213}

Minimum 3.5 {0.148}

CORNER SEAL, CORNER SEAL SPRING

Minimum projection of the corner seal (mm {in}) 0.5 {0.02}

SIDE SEAL, SIDE SEAL SPRING

Corner seal and side seal clearance (mm {in})

Standard 0.05-0.15 {0.0020-0.0059}

Maximum 0.4 {0.016}

Minimum projection of the side seal (mm {in}) 0.5 {0.02}

CUT-OFF SEAL, CUT OFF SEAL SPRING

Cut-off seal height (mm {in})

Standard 3.95 {0.1555}

Minimum 3.8 {0.15}

Minimum projection of the cut off seal (mm {in}) 0.5 {0.02}

OIL SEAL, OIL SEAL SPRING

Maximum contact width (mm {in}) 0.5 {0.02}

Maximum circumferential width (mm {in}) 2.5 {0.098} (or 10 nicks or more)

Minimum projection of the oil seal (mm {in}) 0.5 {0.02}

ECCENTRIC SHAFT

Main bearing oil clearance (mm {in})

Standard

0.055-0.075
{0.0022-0.0029}

0.045-0.085
{0.0018-0.0033}

Maximum 0.1 {0.0039 in}

Rotor bearing oil clearance (mm {in})

Standard 0.06-0.08 {0.0024-0.0030}

Maximum 0.1 {0.0039}

Runout (mm {in})

Standard 0.02 {0.0008}

Maximum 0.06 {0.0024}

End play (mm {in})

Standard 0.04-0.09 {0.0016-0.0035}

Maximum 0.1 {0.0039}

ECCENTRIC SHAFT BYPASS VALVE

Minimum projection (mm {in}) 6 {0.24}

OIL PUMP

Side clearance (mm {in})

Standard 0.20-0.25 {0.0079-0.0098}

Maximum 0.3 {0.0118}

Tip clearance (mm {in})

Standard 0.03-0.12 {0.0012-0.0047}

Maximum 0.15 {0.0059}

Body clearance (mm {in})

Standard 0.03-0.125 {0.0012-0.0049}

Maximum 0.15 {0.0059}

ENGINE SST

BHE016001001E01

49 0107
680A

Engine
stand

49 L010 1A0

Engine
hanger set

49 J010 3A0A

Hanger, Engine
stand

49 1881
055A

Stopper
counter
weight (AT)

49 0820 035

Flywheel box
wrench

49 0839 305A

Counterweight
puller

49 F011 101

Ring gear
brake
(MT)

49 0813 250

Seal case

49 0813 215A

Dowel puller and
oil pump puller

49 0813
225A

Oil seal
remover

49 0813 235

Main bearing
puller and
installer

49 0813 240

Rotor bush puller
and installer

49 0839 165

Corner seal
gauge

49 F011 1A1

Bearing
installer set
(MT)

49 1285 071

Needle bearing
puller (MT)

49 G030
797

Handle (MT)

49 F010 401A

Installer

49 J027 001

Bearing installer

ENGINE OVERHAUL SERVICE WARNING

BHE011002000E01

Warning

• Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your skin by

washing with soap and water immediately after this work.

ENGINE MOUNTING/DISMOUNTING

BHE011002000E02

Mounting

Using 49 L010 1A0

1. Remove the stud bolt.

2. Install the SSTs (arms) to the specified three position as
shown in the figure, and temporarily tighten with the SSTs
(bolts) and 99784 0890 or M8×1.25 length 90 mm {3.55
in} bolt.

3. Install the SSTs (bolt, nut) to the three specified positions as shown in the figure.

4. Install the SSTs (bolts, nuts, hook, plate) in Step 3 to
the SST (arms, bolts) set in Step 2.

5. Adjust the bolt threads by turning them so that they
project approx. 20 mm {0.79 in} from the plate end.

6. Adjust the bolts and nuts so that the plate and arms are
parallel.

7. Mount the engine to the SST (engine stand).

8. Remove the oil pan drain plug and drain the engine oil.

9. Replace with a new washer and install the oil pan drain plug.

Tightening torque

29.4-39.2 N·m {3.00-3.99 kgf·m, 21.7-28.9 ft·lbf}

Using 49 J010 3A0A

1. Install the SSTs to the position shown in the figure.

A M8×1.25 length 25 mm {1.28 in} bolt

B

99940 1201 (left side engine mount installation nut) or
M12×1.5 nut

C

99756 1230 (left side engine mount installation nut) +
washer

2. Mount the engine to the SST (engine stand).

3. Remove the oil pan drain plug and drain the engine oil.

4. Install the oil pan drain plug with a new washer.

Tightening torque

29.4-39.2 N·m {3.00-3.99 kgf·m, 21.7-28.9
ft·lbf}

Dismounting

1. Dismount in the reverse order of mounting.

2. Tighten the stud bolt. (Only when using 49 L010 101.)

Tightening torque

14.7-34.3 N·m {1.50-3.49 kgf·m, 10.9-25.2 ft·lbf}

HOUSING DISASSEMBLY I

BHE011002000E03

1. Disassemble in the order indicated in the table.

1 Oil filter component

2 Engine hanger (engine rear side)

3 Engine coolant temperature sensor

4 Engine hanger (engine front side)

5 Water pump body

6 Thermostat component

7

Oil pan
(See Oil Pan Disassembly Note.)

8 Clip

9 Oil baffle plate

10 Oil-level sensor

11 Oil strainer

Oil Pan Disassembly Note

1. Remove the oil pan using the separator tool.

HOUSING DISASSEMBLY II

BHE011002000E04

1. Disassemble in the order indicated in the table.

1

Pulley lockbolt
(See Pulley Lockbolt Disassembly Note.)

2 Pulley component

3 Eccentric shaft bypass valve

4 Spring

5

Front cover
(See Front Cover Disassembly Note.)

6 Front oil seal

7 Plug

8 Control valve spring

9 Control valve

10 Metering oil pump drive gear

11

Oil pump sprocket wheel
(See Oil Pump Sprocket Disassembly Note.)

12 Oil pump chain

13 Oil pump drive gear

14 Oil pump component

15 Balance weight

16 Thrust plate

17 Needle bearing

18 Spacer

19 Rear outer rotor

20 Rear inner rotor

21 Middle plate

22 Front outer rotor

23 Front inner rotor

24 Shaft

25 Oil pump body

Pulley Lockbolt Disassembly Note

1. Lock the flywheel (MT) or counterweight (AT) against rotation using the SST.

Front Cover Disassembly Note

1. Loosen the engine front cover installation bolts in the
order shown in the figure.

Oil Pump Sprocket Disassembly Note

1. Lock the flywheel (MT) or counterweight (AT) against
rotation using the SST.

2. Unlock the crimped part of the lock washer and remove
the locknut and lock washer.

3. Remove the oil pump drive gear and oil pump sprocket
wheel with the oil pump chain engaged.

HOUSING DISASSEMBLY III

BHE011002000E05

1. Disassemble in the order indicated in the table.

1

Flywheel (MT), counterweight (AT)
(See Flywheel (MT), Counterweight (AT) Disassembly Note.)

2

Tension bolt
(See Tension Bolt Disassembly Note.)

3

Rear housing
(See Rear Housing Disassembly Note.)

4 Rear oil seal

5

Rear stationary gear
(See Stationary Gear Disassembly Note.)

6 Pressure regulator

7

Tubular dowel (rear rotor housing side)
(See Tubular Dowel Disassembly Note.)

8

Rear rotor housing
(See Rotor Housing Disassembly Note.)

9

Rear rotor
A: Side seal
B: Side seal spring
C: Corner seal
D: Corner seal plug
E: Corner Seal Spring
F: Side piece
G: Apex seal
H: Apex seal spring (short)
I: Apex seal spring (long)
(See Rotor Disassembly Note.)

10

Tubular dowel (front rotor housing side)
(See Tubular Dowel Disassembly Note.)

11

Intermediate housing
(See Intermediate Housing Disassembly Note.)

12

Front rotor housing
(See Rotor Housing Disassembly Note.)

13 Eccentric shaft

14 Oil jet plug

15 Spring

16 Steel ball

17

Front rotor
(See Rotor Disassembly Note.)

18 Plate

19 Needle bearing

20 Thrust plate

21

Front stationary gear
(See Stationary Gear Disassembly Note.)

22 Front housing

Flywheel (MT), Counterweight (AT) Disassembly Note

1. Lock the flywheel (MT) or counterweight (AT) against rotation using the SST.

2. Remove the locknut using the SST.

3. Remove the flywheel (MT) or counterweight (AT), using
the SST.

Tension Bolt Disassembly Note

1. Loosen the tension bolts in 2-3 passes in the order
shown in the figure and remove them.

Rear Housing Disassembly Note

1. Move the rear housing to the left and right to cut the oil
film.

2. Remove the rear housing.

Caution

• If a seal adheres to the rear housing, put it back in

its original position in the rotor.

Stationary Gear Disassembly Note

1. Remove the stationary gear using the SST.

Tubular Dowel Disassembly Note

1. Remove the tubular dowel using the SST.

Rotor Housing Disassembly Note

1. Remove the rotor housing being careful not to drop the
apex seal.

Rotor Disassembly Note

Note

• Pair each seal and spring according to the

numbers shown in the figure, and place them in the

SST according to the numbers shown on the SST.

1. Remove the side piece, apex seal, corner seal, side seal, and spring on the engine rear side, and place them in
the SST while keeping them in order.

2. Move the rotor to the left and right to cut the oil film.

3. Remove the rotor.

Caution

• If a seal adheres to the side housing, put it back in

its original position in the rotor.

• Place the removed rotor upright on soft material

such as a rubber sheet or cloth. Do not allow the oil

seal to directly contact metal are similar hard

surface.

4. Remove the corner seal, side seal, and spring on the engine front side, and place them in the SST while keeping
them in order.

Intermediate Housing Disassembly
Note

1. Lift the intermediate housing up while another person
pushes the eccentric shaft upward approx. 3 cm {1.18
in}.

2. Rotate and remove the intermediate housing at the
point where the eccentric shaft does not catch.

Caution

• If a seal adheres to the intermediate housing, put

it back in its original position in the rotor.

ROTOR DISASSEMBLY

BHE011002000E06

1. Disassemble in the order indicated in the table.

1 Cut-off seal

2 Cut-off seal spring

3

Outer oil seal
(See Oil Seal Disassembly Note.)

4 Outer O-ring (large radius)

5

Outer oil seal spring
(See Oil Seal Spring Disassembly Note.)

6

Inner oil seal
(See Oil Seal Disassembly Note.)

7 Inner O-ring (small radius)

8

Inner oil seal spring
(See Oil Seal Spring Disassembly Note.)

Oil Seal Disassembly Note

1. Remove the oil seal using the SST.

Caution

• Be sure to keep the removed oil seals separated

according to their removal position.

Oil Seal Spring Disassembly Note

Caution

• Be sure to keep the removed oil seal springs

separated according to their removal positions.

ROTOR ASSEMBLY

BHE011002000E07

1. Assemble in the order indicated in the table.

1

Inner oil seal spring
(See Oil Seal Spring Assembly Note.)

2

Inner O-ring (small radius)
(See O-Ring Assembly Note.)

3

Inner oil seal
(See Oil Seal Assembly Note.)

4

Outer oil seal spring
(See Oil Seal Spring Assembly Note.)

5

Outer O-ring (large radius)
(See O-Ring Assembly Note.)

6

Outer oil seal
(See Oil Seal Assembly Note.)

7

Cut-off seal spring
(See Cut-Off Seal Spring Assembly Note.)

8

Cut-off seal
(See Cut-Off Seal Assembly Note.)

Oil Seal Spring Assembly Note

1. Assemble the oil seal spring with the identification color upward.

Spring Identification Color

Rotor

Front rotor Rear rotor

Engine front side Engine rear side Engine front side Engine rear side

Inner White Blue White Blue

Outer White + pink Blue + pink White + pink Blue + pink

Caution

• It is possible that the identification color may not be visible when reusing the oil spring. In that case,

assemble the rounded end towards the rotor side and the squared end upward.

• Be careful when assembling the oil seal spring of the front and rear rotor since each spring of the engine

front side and engine rear side are the same.

Note

• Either one of the two rotation lock slots on the oil seal can be used as a reference.

• Assemble the rounded end within 0-15 mm

{0-0.59 in} away from the oil seal spring
rotation lock.

O-Ring Assembly Note

1. Apply petroleum jelly to a new O-ring.

2. Assemble the O-ring to the oil seal.

Note

• Assemble the thicker O-ring to the inner oil seal

(small radius), and the thinner O-ring to the outer oil

seal (large radius).

Oil Seal Assembly Note

1. Temporarily install the oil seal with the squared end of
the oil seal spring fit into the slot of the oil seal.

2. Push in the oil seal using an old oil seal.

3. Verify that the stroke of the oil seal is smooth and there
is no catching by pushing the oil seal with your hand.

Cut-Off Seal Spring Assembly Note

1. Assemble the cut-off seal spring with the spring end
turned upward.

Note

• When replacing a cut-off seal with a new one,

assemble the seal with the pink surface facing

upward.

Cut-Off Seal Assembly Note

1. Assemble the cut-off seal so that it does not run over
the rotation lock pin.

HOUSING ASSEMBLY I

BHE011002000E08

1. Assemble in the order indicated in the table.

1 Front housing

2 Front stationary gear

3

Thrust plate
(See Thrust Plate Assembly Note.)

4 Needle bearing

5 Plate

6

Front rotor
A: Side seal
B: Side seal spring
C: Corner seal
D: Corner seal plug
E: Corner seal spring
F: Side piece
G: Apex seal
H: Apex seal spring (short)
I: Apex seal spring (long)
(See Rotor Assembly Note.)

7 Steel ball

8 Spring

9

Oil jet plug
(See Oil Jet Plug Assembly Note.)

10 Eccentric shaft

11

Front rotor housing
(See Rotor Housing Assembly Note.)

12 Tubular dowel (front rotor housing side)

13

Intermediate housing
(See Intermediate Housing Assembly Note.)

14

Rear rotor
(See Rotor Assembly Note.)

15

Rear rotor housing
(See Rotor Housing Assembly Note.)

16 Tubular dowel (rear rotor housing side)

17 Pressure regulator

18 Rear stationary gear

19

Rear oil seal
(See Rear Oil Seal Assembly Note.)

20

Rear housing
(See Rear Housing Assembly Note.)

21

Tension bolt
(See Tension Bolt Assembly Note.)

22

Flywheel (MT), counterweight (AT)
(See Flywheel (MT), Counterweight (AT) Assembly Note.)

Thrust Plate Assembly Note

1. Place the chamfer side facing the stationary gear.

Rotor Assembly Note

Caution

• Assemble only the side seal and corner seal on

the engine front side while the rotor is not

assembled.

1. Assemble the side seal spring in the direction shown in
the figure.

2. Assemble the side seal spring in the direction shown in the figure.

3. Apply petroleum jelly between the side seal and side
seal groove.

4. Assemble the corner seal plug to the corner seal.

Note

• When replacing a corner seal with new one,

assemble the corner seal with the painting surface

facing upward.

5. Assemble the corner seal and corner seal spring with the notch aligned with the apex seal groove.

6. Apply petroleum jelly between the corner seal and corner seal groove.

7. Insert the SST into the apex seal groove of the rotor and verify that the apex seal groove of the corner seal is
aligned with the apex seal groove of the rotor.

8. Assemble the side seal and corner seal for the engine rear side in the same way as the engine front side.

Oil Jet Plug Assembly Note

1. Apply thread locking compound to the seating face of
the oil jet plug.

2. Install the oil jet plug.

Tightening torque

3.9-11.7 N·m

{40-119 kgf·cm, 35-103 ft·lbf}

Rotor Housing Assembly Note

Caution

• Assemble the seal rubber without any torsion.

• Do not get oil or grease on the seal rubber.

1. Apply petroleum jelly to a new seal rubber.

2. Assemble the outer seal rubber to the housing with the white paint in the direction shown in the figure.

3. Assemble the inner seal rubber to the housing with the
seal rubber joint placed between A-B.

4. Apply the silicone sealant to the position indicated in the
figure.

Bead thickness

2.5-6.5 mm {0.099-0.255 in}

5. Apply thread locking compound to the attaching surface
of the apex seal and the side piece and affix them.

Caution

• After adhesion, make sure that there is no gap

between the apex seal and side piece.

• If adhesive protrudes, remove with a razor.

Note

• When using a new apex seal, the procedure above is not needed.

6. Assemble the apex seal and apex seal spring (short) together with the side piece to the engine rear side.

7. Assemble the apex seal spring (long) while pressing the apex seal spring (short).

Caution

• Assemble the apex seal spring until it catches the

spring stopper of the side piece.

Intermediate Housing Assembly Note

1. Assemble the intermediate housing with the support of
an assistant pushing the eccentric shaft up approx. 3 cm

{1.18 in}.

Caution

• Do not allow the side piece to be caught between

the rotor housing and intermediate housing.

Rear Oil Seal Assembly Note

1. Assemble the oil seal using the SST.

Caution

• Insert the rear oil seal until it is reaches to the

seating face.

Rear Housing Assembly Note

1. Assemble the rear housing with the rear stationary gear
and the internal gear of the rotor engaged.

Caution

• Do not allow the side piece to be caught between the rotor housing and rear housing.

Tension Bolt Assembly Note

1. Apply engine oil to the tension bolt threads and
assemble to the housing with a new seal washer.

Caution

• Assemble a tension bolt which has a seal washer

with the rubber projection facing the housing side.

2. Tighten the tension bolts in the order indicated in the
figure in 2-3 passes.

Tightening torque

31.4-39.2 N·m

{3.21-3.99 kgf·m, 23.2-28.9 ft·lbf}

Flywheel (MT), Counterweight (AT)
Assembly Note

1. Lock the flywheel (MT) or counterweight (AT) against
rotation using the SSTs.

2. Apply silicone sealant to the locknut threads.

3. Tighten the locknut using the SST.

Tightening torque

392-490 N·m

{40.0-49.9 kgf·m, 290-361 ft·lbf}

HOUSING ASSEMBLY II

BHE011002000E09

1. Assemble in the order indicated in the table.

.

1 Oil pump body

2 Shaft

3 Front inner rotor

4 Front outer rotor

5 Middle plate

6 Rear inner rotor

7 Rear outer rotor

8

Spacer
(See Spacer Assembly Note.)

9 Needle bearing

10 Thrust plate

11 Balance weight

12 Oil pump component

13

Oil pump drive gear
(See Oil Pump Drive Gear Assembly Note.)

14 Oil pump chain

15

Oil pump sprocket wheel
(See Oil Pump Sprocket Wheel Assembly Note.)

16 Metering oil pump drive gear

17 Control valve

18 Control valve spring

19 Plug

20

Front oil seal
(See Front Oil Seal Assembly Note.)

21

Front cover
(See Front Cover Assembly Note.)

22 Spring

23 Eccentric shaft bypass valve

24 Pulley component

25

Pulley lockbolt
(See Pulley Lockbolt Assembly Note.)

Spacer Assembly Note

Caution

• When assembling the spacer, do not allow the spacer to be caught in the needle bearing of the plate.

Note

• Perform eccentric shaft end play inspection.

(SeeECCENTRIC SHAFT END PLAY

INSPECTION.)

Oil Pump Drive Gear Assembly Note

1. Assemble the oil pump drive gear or oil pump
sprocket wheel with the oil pump chain engaged.

Oil Pump Sprocket Wheel Assembly
Note

1. Lock the flywheel (MT) and counterweight (AT)
against rotation using the SSTs.

2. Assemble the oil pump shaft with a new lock washer
and locknut, and tighten.

Tightening torque

31.4-46.1 N·m
{3.21-4.70 kgf·m, 23.2-34.0 ft·lbf}

3. Bend the lock washer and crimp.

Front Oil Seal Assembly Note

1. Press the oil seal in using the SST.

Front Cover Assembly Note

1. Before installing the front cover, install the pulley
boss to the eccentric shaft and measure the height
between the eccentric shaft top and the pulley boss.

• If not within the specification, verify that the

spacer is not caught in the needle bearing.

Standard

10.34-11.14 mm {0.4071-0.4385 in}

2. Tighten the engine front cover installation bolts in the
order shown in the figure.

Tightening torque

18.6-25.5 N·m
{1.90-2.60 kgf·m, 13.8-18.8 ft·lbf}

Pulley Lockbolt Assembly Note

1. Lock the flywheel (MT) or counterweight (AT) against
rotation using the SSTs.

2. Apply engine oil to the pulley lockbolt threads.

3. Assemble a new O-ring.

4. Apply silicone sealant to the seating face.

5. Tighten the pulley lockbolt.

Tightening torque
254-294 N·m
{25.9-29.9 kgf·m, 188-216 ft·lbf}

HOUSING ASSEMBLY III

BHE011002000E10

1. Assemble in the order indicated in the table.

1 Oil strainer

2 Oil-level sensor

3 Oil baffle plate

4 Clip

5

Oil pan
(See Oil Pan Assembly Note.)

6 Thermostat component

7 Water pump body

8 Engine hanger (engine front side)

9 Engine coolant temperature sensor

10 Engine hanger (engine rear side)

11 Oil filter component

Oil Pan Assembly Note

Caution

• Using bolts with the oil sealant still adhering could cause cracks in the housing. Clean all sealant off all oil

pan bolts before assembly.

• Apply the silicon sealant in a single, unbroken line around the whole perimeter.

• Install the engine front cover within 5 min after applying the silicone sealant.

1. Completely clean and remove any oil, dirt, sealant or other foreign material that may be adhering to the housing
and oil pan.

2. When reusing oil pan installation bolts, clean any old sealant from the bolts.

3. Apply silicone sealant to the areas shown in the figure.

Bead thickness

2.5-6.5 mm {0.1-0.2 in}

4. Tighten the oil pan installation bolts.

Tightening torque

8.8-11.8 N·m

{90-120 kgf·cm, 78-104 in·lbf}

ECCENTRIC SHAFT INSPECTION

BHE011011D01E01

1. Inspect for clogging in the oil passage.

• If there is any clogging, remove it with a needle or

similar device and clean with compressed air.

2. After setting the eccentric shaft main journal on V­blocks and a surface plate, measure the runout at the end
of the eccentric shaft using a dial gauge.

•

I f

it

exceeds the maximum specification, replace the eccentric shaft.

Standard runout

0.02 mm {0.0008 in}
Maximum runout

0.06 mm {0.0024 in}

ECCENTRIC SHAFT END PLAY INSPECTION

BHE011011D01E02

1. Lock the flywheel (MT) or counterweight (AT) against rotation using the SST.

2. Assemble the parts in the following order:

(1) Spacer

(2) Needle bearing

(3) Thrust plate

(4) Balance weight

(5) Oil pump drive gear

(6) Metering oil pump drive gear

Caution

• When assembling the spacer, do not allow the spacer to be caught in the needle bearing in the plate.

3. Assemble the eccentric shaft pulley, eccentric shaft
position plate, pulley boss component apply engine oil to
the pulley lockbolt threads, and then tighten.

Tightening torque

300-340 N·m {30.6-34.6 kgf·m, 222-250 ft·lbf}

4. Remove the SST.

5. Measure the end play of the eccentric shaft using a dial
gauge.

• If not within the specification, replace the spacer with one that is thicker than the currently assembled one.

If it exceeds the specification, replace with a thinner spacer.

Standard end play

0.04-0.09 mm {0.0016-0.0035 in}
Maximum end play

0.1 mm {0.0039 in}

Spacer types

(mm {in})

Marking Dimension

A 7.985 {0.3144}

B 8.005 {0.3152}

C 8.025 {0.3159}

D 8.045 {0.3167}

E 8.065 {0.3175}

Note

• If the end play is not within the specification even after replacing with an A-marked spacer, adjust by

grinding it and reuse.

PILOT BEARING INSPECTION/REPLACEMENT [MT]

BHE011011D01E03

Inspection

Caution

• Inspect the pilot bearing when it is installed to the eccentric shaft.

1. Before removing the pilot bearing, inspect it for damage, wear, and proper rotation.

• If there is any malfunction, replace the pilot bearing.

Replacement

Removal

1. Fix the eccentric shaft on a vice.

2. Remove the pilot bearing and the oil seal together using the SST.

Installation

1. Install a new pilot bearing using the SSTs.

2. Apply grease to the pilot bearing.

3. Install a new oil seal using the SSTs.

ECCENTRIC SHAFT BYPASS VALVE

BHE011011D01E04

Warning

• Engine oil temperature will increase during the inspection and become very dangerous. Be careful not to

burn yourself during the inspection.

1. Put the eccentric shaft bypass valve in a container filled with engine oil.

2. Heat the container and verify that the projection
protrudes more than the minimum specification when the
engine oil temperature is 60 °C {140 °F}.

• If it is less than the minimum specification, replace

the eccentric shaft bypass valve.

Minimum projection

6 mm {0.24 in}

ECCENTRIC SHAFT POSITION PLATE INSPECTION

BHE011011D01E05

1. Visually inspect the eccentric shaft position plate for damage and erosion.

• If there is any malfunction, replace the eccentric

shaft position plate.

ROTOR HOUSING INSPECTION

BHE011010B08E01

1. Measure the width of the rotor housing at four points (A, B, C, and D) as shown in the figure using a micrometer.

2. Compute the width variation.

• If it exceeds the maximum, replace the rotor

housing.

Width difference = (width A) - (the smallest of

widths B, C, or D)

Maximum width difference

0.06 mm {0.0024 in}

SIDE HOUSING (FRONT, INTERMEDIATE, REAR)

INSPECTION

BHE011010D00E01

1. Inspect the intermediate housing for clogging in the intake and exhaust port.

Caution

• Carefully inspect the anti-wet port of the

intermediate housing since it is an essential
port.

• If there is any malfunction, replace the corresponding side housing.

2. Inspect the side housing for distortion in four positions as shown in the figure using a straight edge and a feeler
gauge.

• If the distortion exceeds the maximum, replace the

corresponding side housing.

Maximum distortion

0.04 mm {0.0016 in}

3. Inspect the following three items related to wear in the
areas where the rotor contacts the side housing using a
dial gauge.

• If any one of the items exceeds the maximum,

replace the corresponding side housing.
(1) Vertical wear

Maximum wear

0.10 mm {0.0039 in}

(2) Convex oval

Maximum wear
Oil seal inner path (A): 0.01 mm {0.0004 in}
Oil seal outer path (B): 0.10 mm {0.0039 in}

(3) Oil seal stepped path wear

Maximum wear

0.02 mm {0.0008 in}

MAIN BEARING OIL CLEARANCE INSPECTION

BHE011010E00E01

1. Using a micrometer, measure the outer diameters of the inside main journal.

2. Using a cylinder bore gauge, measure the inner
diameter of the stationary gear main bearing.

3. Calculate the main bearing oil clearance from the main journal outer diameter and the main bearing inner
diameter.

Main bearing oil clearance = (main bearing inner

diameter) - (main journal outer diameter)

• If it exceeds the maximum specification, replace

the main bearing. (See MAIN BEARING

REPLACEMENT.)

– If the clearance is not within the

specification after replacing the main bearing,
replace the eccentric shaft.

Standard main bearing oil clearance
Standard power: 0.045-0.085 mm
{0.0018-0.0033 in}
High power: 0.055-0.075 mm
{0.0022-0.0029 in}
Maximum main bearing oil clearance
Standard power: 0.1 mm {0.0039 in}
High power: 0.1 mm {0.0039 in}

MAIN BEARING REPLACEMENT

BHE011010E00E02

Removal

1. Remove the stopper screw. (High power only)

2. Remove the adapter ring and the securing screw from
the SST.

3. Set the stationary gear to the hydraulic press so that the
gear faces upward.

4. Remove the main bearing using the SST.

Installation

Standard power

1. Temporally assemble the stationary gear and the main bearing so that the main bearing tab and notch are
aligned after pressing in the main bearing and stationary gear.

2. Remove the SST handle.

3. Position the gear of the stationary gear downward, and
install the main bearing by pressing it with the SST.

Caution

• Press the main bearing in so that the top of the

main bearing is flush with the top of the stationary

gear flange.

High power

1. Temporarily assemble the stationary gear and the main
bearing so that the main bearing screw hole and the

stationary gear screw hole are aligned after pressing in the main bearing and rotor.

2. Remove the SST handle.

3. Position the gear of the stationary gear downward, and install the main bearing using the SST.

Caution

• Press the main bearing in so that the top of the

main bearing is flush with the top of the stationary

gear flange.

4. Apply thread-locking compound to the stopper screw
and install.

Tightening torque

3.2-4.7 N·m
{33-47 kgf·cm, 29-41 in·lbf}

ïROTOR INSPECTION

BHE011011B10E01

1. Inspect the rotor and side housing clearance according to the following procedure:

• If it is less than the minimum specification, replace the rotor.

(1) Measure the width of the rotor housing in the position shown in the figure using a micrometer.

Caution

• Move the sheet metal piece out of the way when measuring.

(2) Measure the rotor width at various positions around the rotor round periphery using a micrometer.

(3) Compute the rotor and side housing clearance using the measurements from (1) and (2).

Rotor and side housing clearance = (rotor housing width) - (maximum rotor width)
Standard clearance

0.05-0.19 mm {0.0020-0.0074 in}
Minimum clearance

0.05 mm {0.002 in}

2. Measure the protrusion of the rotor round using a straight edge and a feeler gauge.

Caution

• Measure the the protrusion of the rotor round in the three apexes of the rotor on both the front and rear

sides.

• Because the rotor round has two levels, be careful not to measure the level difference of the middle level.

• If it is less than the minimum specification, replace

the rotor.

Standard projection

0.12-0.18 mm {0.0048-0.0070 in}

Minimum projection

0.1 mm {0.0039 in}

3. Inspect the corner seal groove of the rotor by inserting
the SST.

• If 1/2 or more of either end of the SST can be inserted into the seal groove, replace the corner seal.

• If 1/2 or more of both ends of the SST can be inserted into the corner seal groove, replace the rotor.

Caution

• Do not push the SST in with force.

• Keep the SST perpendicular to the seal groove.

• When replacing the corner seal, replace with one that matches the S or L inscription on the rotor.

4. Measure the clearance between the apex seal groove and the apex seal using a feeler gauge.

• If it exceeds the maximum specification, replace

the apex seal.

• If the clearance is still not within the standard after

replacing the apex seal, replace the rotor.

Standard clearance

0.042-0.101 mm {0.0017-0.0039 in}

Maximum clearance

0.15 mm {0.0059 in}

APEX SEAL INSPECTION

BHE011011B10E02

1. Measure the height in the positions shown in the figure.

• If it is less than the minimum specification, replace

the apex seal.

• Replace the apex seal spring also whenever

replacing the apex seal.

Standard Height

5.3 mm {0.20 in}

Minimum height

4.3 mm {0.17 in}

SIDE SEAL INSPECTION

BHE011011B10E03

1. Assemble the side and corner seals of the rotor.

2. Press the side seal up against the inner side of the side seal groove using 0.05-0.15 mm {0.0020-0.0059} feeler
gauges as shown in the figure.

Caution

• Press the feeler gauges against the both ends of

the side seals correctly.

Note

• Any side seal height is acceptable.

3. Measure the clearance between both ends of the side
seal and the corner seal using a feeler gauge.

• If it exceeds the maximum specification, replace

the side seal.

Standard clearance

0.05-0.15 mm {0.0020-0.0059 in}

Maximum clearance

0.4 mm {0.016 in}

• Select the proper side seal using the side

seal selection table when replacing a side
seal.

Side seal selection table

Side seal groove length rank stamp Part number of side seal

F

G

N3Z1 11 C10*

H

I

J

K

L

M

N3Z2 11 C10*

N

O

P

Q

N3Z3 11 C10*

R

S

T

U

N3Z4 11 C10*

* : Revision indication (alphabetical order)

CUT-OFF SEAL INSPECTION

BHE011011B10E04

1. Measure the cut-off seal height using a vernier caliper.

• If it is less than the minimum specification, replace

the cut-off seal.

Caution

• Measure the cut-off seal height around the

complete perimeter.

Standard height

3.95 mm {0.1555 in}

Minimum height

3.8 mm {0.15 in}

OIL SEAL INSPECTION

BHE011011B10E05

1. Measure the following two items using a vernier caliper.

• If either of the items exceeds the maximum specification, replace the oil seal.

(1) Width of area that contacts the oil seal lip.

Caution

• Measure the contact width around the complete perimeter.

Maximum contact width

0.5 mm {0.02 in}

(2) Circumferential width of any damage along the lip.

Maximum circumferential width of the oil seal lip

2.5 mm {0.098 in} or 10 nicks or more

SPRING INSPECTION

BHE011011B10E06

Oil Seal Spring

1. Assemble the oil seal springs into the rotor.

2. Assemble the O-rings into the oil seals.

3. Assemble the oil seals into the rotor.

4. Measure the oil seal projection using a vernier caliper.

• If it is less than the minimum specification, replace

the oil seal spring.

Minimum projection

0.5 mm {0.02 in}

Cut-off seal spring

1. Assemble the cut-off seal spring into the rotor.

2. Assemble the cut-off seal into the rotor.

3. Measure the cut-off seal projection using a vernier caliper.

• If it is less than the minimum specification, replace

the cut-off seal spring.

Minimum projection

0.5 mm {0.02 in}

Side seal spring

1. Assemble the side seal spring into the rotor.

2. Assemble the side seal into the rotor.

3. Measure the side seal projection using a vernier caliper.

• If it is less than the minimum specification, replace

the side seal spring.

Minimum projection

0.5 mm {0.02 in}

Corner Seal Spring

1. Assemble the corner seal spring into the rotor.

2. Assemble the corner seal into the rotor.

3. Measure the corner seal projection using a vernier caliper.

• If it is less than the minimum specification, replace

the corner seal spring.

Minimum projection

0.5 mm {0.02 in}

Apex Seal Spring

Note

• Inspect the long apex seal spring.

1. Measure the height of the apex seal spring using a vernier caliper with the spring placed on a surface plate.

• If it is less than the minimum specification, replace

the apex seal spring.

Standard height

5.4 mm {0.213 in}

Minimum height

3.5 mm {0.148 in}

ROTOR BEARING OIL CLEARANCE INSPECTION

BHE011011B10E07

1. Measure the outer diameter of the rotor journal using a micrometer.

Caution

• Measure the rotor journal at a point slightly off-

center since the center section is raised. Do not
measure at the center because it does not
contact the rotor bearing.

2. Measure the inner diameter of the rotor bearing using
a cylinder gauge.

3. Calculate the rotor bearing oil clearance from the rotor journal outer diameter and the rotor bearing inner
diameter.

Rotor bearing oil clearance = (rotor bearing
inner diameter) - (rotor journal outer diameter)

• If it exceeds the minimum specification, replace

the rotor bearing. (See ROTOR BEARING

REPLACEMENT.)

• If not within the specification, even with the rotor

bearing replaced, replace the eccentric shaft.

Standard rotor bearing oil clearance

0.06-0.08 mm {0.0024-0.0030 in}
Maximum rotor bearing oil clearance

0.1 mm {0.0039 in}

ROTOR BEARING REPLACEMENT

BHE011011B10E08

Removal

1. Set the rotor with the internal gear at the bottom.

2. Remove the adapter ring and the securing screw from the SST.

3. Remove the rotor bearing using the SST.

Installation

1. Remove the SST handle.

2. Temporarily assemble so that the rotor bearing tab and the rotor notch are aligned after pressing in the rotor
bearing and rotor.

3. Set the temporarily assembled rotor bearing and rotor
on a hydraulic press.

4. Press in the rotor bearing using the SST.

OIL PUMP INSPECTION

BHE011014100E01

1. Measure the side clearance between the outer rotor and the body using a feeler gauge.

• If it exceeds the maximum specification, replace

the oil pump.

Standard side clearance

0.20-0.25 mm {0.0079-0.0098 in}

Maximum side clearance

0.3 mm {0.0118 in}

2. Measure the tip clearance between the inner rotor and
the outer rotor using a feeler gauge.

• If it exceeds the maximum specification, replace the oil pump.

Standard tip clearance

0.03-0.12 mm {0.0012-0.0047 in}
Maximum tip clearance

0.15 mm {0.0059 in}

3. Measure the body clearance between the rotor and the side housing using a straight edge and a feeler gauge.

• If it exceeds the maximum specification, replace

the oil pump.

Standard body clearance

0.03-0.125 mm {0.0012-0.0049 in}
Maximum body clearance

0.15 mm {0.0059 in}