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LUBRICATION SYSTEM DIAGRAM
SERVICE INFORMATION
TROUBLESHOOTING
OIL PRESSURE INSPECTION
SERVICE
INFORMATION
4-0
4
-
1
4-2
4-3
OIL STRAINERPRESSURE RELIEF
VALVE
OIL
PUMP
OIL COOLER
GENERAL
Repeated, prolonged exposure to used motor oil may cause skin cancer.
Wash your hands thoroughly with strong soap as soon as possible after handling used oil.
The oil pump can be serviced with the engine installed in the frame.
The service procedures in this section must be performed with the engine oil drained.
When removing and installing the oil pump, use care not to allow dust or dirt to enter the engine.
If
any portion of the oil pump is worn beyond the specified service limits, replace the oil pump as an assembly.
-
After the oil pump has been installed, check that there are no oil leaks and that oil pressure is correct.
SPECIFICATIONS
4-3
4-5
4-9
Unit:
mm
(
Engine
Recommended engine oil
I
Oil pressure at oil pressure switch
Oil pump rotor
oil
capacity
At draining
At oil filter change
1
At disassembly
Tip clearance
Body clearance
Side clearance
STANDARD
3.5 liter (3.7 US qt, 3.1
3.7 liter (3.9
4.0 liter (4.2 US
Pro Honda GN4 or
num additives) 4-stroke oil or equivalent
motor oil
API service classification:
JASO
Viscositv: SAE IOW-40
490 kPa (5.0 kgf/cm2,
5,400
0.15
(0.006)
-
0.15
0.02
-
US
T
903 standard:
rpm/(80"C/176"F)
max.
0.22 (0.006
0.07
(0.001 - 0.003)
qt, 3.3
qt,
3.5
HP4
-
0.009)
Imp
qt)
Imp
qt)
Imp
qt)
(without molybde
SG
or higher
MA
71
psi) at
-
SERVICE
0.20
0.35 (0.014)
0.10
LIMI-
__
(0.008)
(0.004)
LUBRICATION
SYSTEM
TORQUE VALUES
Oil drain bolt
Oil cooler mounting bolt
Oil pump assembly flange bolt
Oil pump driven sprocket bolt
Oil filter cartridge
20
mm
Lower crankcase
sealing bolt
TOOLS
Oil pressure gauge set
Oil pressure gauge attachment
Oil filter wrench
TROUBLESHOOTING
Engine
-
-
-
Low
No
-
oil
level too
Oil consumption
External oil leak
Worn piston ring or incorrect piston ring installation
Worn valve guide or seal
or no oil pressure
Clogged oil orifice
Incorrect oil being used
oil pressure
Oil level too low
Oil pump drive sprocket broken
Oil pump damaged (pump shaft)
Internal
oil
low
leak
29
N*m
(3.0
kgf-m,
74
N-m
(7.5
kgf-m,
8
N*m
(0.8
kgf-m,
15
N-m
(1.5
kgfom,
26
N-m
(2.7
kgf-m,
29
N*m
(3.0
kgf-m,
07506-3000001
-
MA70000
0751 0
HAA-PJ70
07
1 0 1
High
-
Oil
22
Ibfeft)
54
lbf-ft)
5.8
Ibf*ft)
11
Ibf-ft)
20
Ibf-ft)
22
Ibfoft)
Equivalent commercially available
CT bolt
Apply a locking agent to the threads.
Apply clean engine oil to the O
Apply a locking agent to the threads.
_I
07 HAA-PJ7O
or
oil pressure
Plugged
Incorrect oil being used
contamination
From coolant mixing with oil
-
-
-
-
oil
filter, gallery, or metering orifice
Faulty water pump mechanical seal
Faulty cylinder head gasket
Water leak
Faulty oil cooler
in
100
crankcase
in
U.S.A.
-
ring.
Low
oil
pressure
-
Clogged oil strainer screen
Oil pump worn or damaged
*
Internal oil leak
Incorrect oil being used
Low oil level
4-2
OIL PRESSURE INSPECTION
LUBRICATION SYSTEM
If the oil pressure
indicator light
remains
on
a
few
seconds,
system before
checking the
Ihe
indicator
pressure.
check
oii
Check the oil level (page 3-15).
Warm up the engine to normal operating temperature
(aeeroximately 80°C/176"F).
Sto'p the engine and remove the crankcase sealing
bolt.
Connect an
crankcase.
TOOLS:
Oil
pressure gauge set 07506-3000001
Oil
pressure gauge attachment
Start the engine and increase the rpm to 5,400 rpm
and read the oil pressure.
OIL PRESSURE:
490
(80"C/176"F)
oil
pressure gauge and attachment
kPa (5.0 kgf/cm*, 71 psi) at
(Equivalent
commercially
-
MA70000
rpm/
U.S.A.)
U.S.A.)
available in
0751 0
(Equivalent
commercially
available in
5,400
to
the
OIL
PRESSlJRE
I
SEALING
GAUGE
I
BOLT
/
Stop the engine and remove the tools.
Apply a locking agent to the sealing bolt threads.
Install and tighten the sealing bolt to the specified
torque.
TORQUE:
29
N-m
(3.0
kgf-m,
22
Ibf-ftl
OIL STRAINER/PRESSURE RELIEF
VALVE
REMOVAL
Drain the engine oil (page
Remove the exhaust pipe (page 2-13)
Remove the
oil
pan flange bolts and
3-15).
oil
pan.
I
I
4-3