Mallory Ignition 4070LP User Manual

INSTALLATION INSTRUCTIONS

COMP PUMP® SERIES 70

ELECTRIC FUEL PUMP

PART NO. 4070LP

NOTE: DO NOT RUN THIS PUMP WITHOUT FUEL

(EXCEPT FOR BRIEF PERIODS WHILE PRIMING).

This product is covered under one or more of the following U.S. Patents:

5,007,806; 4,998,557; 5,111,793; 5,123,436; 5,186,147.

FORM #1394 (REV. D) 01/12

PARTS INCLUdEd IN ThIS kIT

1 Electric Fuel Pump
2 Nuts, 5/16” – 24
2 Bolts, Steel 5/16”
2 Washers, Steel 5/16” Flat
1 Splice Connector
1 Ring Terminal

GENERAL INFORMATION

The COMP PUMP® 70 Series Electric Fuel Pump is a low volume fuel
pump designed for automotive applications. The operating fuel pres­sure is factory set at 3-4 PSI. A fuel pressure regulator is not used.
We recommend a 5/16” or larger fuel line with this fuel system.

When installing the fuel pump ttings, use a thread sealant compound
(you can nd this at a hardware store) on the tting threads. Do not

use thread sealing tape. Thread sealing tape can get into the Gerotor

and lock the pump. Also, do not overtighten the ttings. This could

damage the fuel chamber.

The fuel pump output pressure can be slightly adjusted on the vehicle
using a fuel pressure gauge. To change the fuel pump output pres­sure, release the jam nut and remove bypass plug. Clean the bypass
plug. Apply thread sealant compound to the bypass plug threads.
Install bypass plug. Turning the bypass plug clockwise increases fuel
pressure. Tighten the jam nut.

Be sure to install a suitable fuel lter (minimum 40 micron ltration)

between the fuel tank and the fuel pump. The Mallory COMP FILTER®
Series Part Nos. 3140 is recommended. This prevents debris from
becoming wedged in the fuel pump’s Gerotor and locking it.

SPECIFICATIONS

Operating pressure: 3–4 PSI
Fuel pump inlet/outlet thread sizes: 3/8” NPT
Oil pressure switch rating: 5 AMP
Fuel pump over current protection: 5 AMP fuse
Fuel applications: Gasoline

Service Parts PN 3146A Brush Kit
PN 3164 Seal/Repair Kit, Gasoline

MOUNTING PROCEdURE

Step 1

Mount the pump as close as possible to the fuel tank (at or below the

level of the fuel tank pickup) in a well ventilated area with minimal

exposure to road debris. Avoid exposing the pump and fuel lines to
moving parts and hot surfaces, such as the exhaust system. NOTE:

Increasing distance between the pump and tank will decrease

pump efciency.

Step 2

Using the pump mounting bracket as a template, locate mounting

holes on a solid member, such as the vehicle chassis. Drill holes for

5/16” bolts. See Figure 1. NOTE: To ensure against a potential re
hazard from pump ooding, mount the pump in a vertical posi­tion with the motor on top.

Step 3

Connect fuel lines as shown in Figure 2. If your fuel system requires
a fuel pressure regulator, proceed to the instructions with the fuel
pressure regulator.

1

WIRING PROCEdURE

Wiring the pump to an oil pressure switch will provide power only when
the ignition switch is on and the engine is running. This will prevent the
pump from running if your engine stalls. Use 14 gauge wire or larger
and be sure to disconnect the battery ground cable before wiring the
pump. Refer to Figure 3 when connecting the pump to an oil pressure
switch.

The pump may be wired directly to the ignition switch “ON” terminal
and grounded to the frame or battery. Refer to Figure 4 when connect­ing the pump to the ignition switch “ON” terminal.

MAINTENANCE–PUMP dISASSEMBLY

If your pump fails to produce adequate pressure, it may require clean­ing. Follow the steps below to disassemble and clean your Mallory
Electric Fuel Pump. Refer to Figure 5 while performing the following
steps.

Step 1

Remove the pump from the vehicle and clean pump exterior. Place the
pump on its side on a clean work surface. Scribe or draw a line across
the pump housing, port plate and fuel chamber so that you can reas­semble the pump correctly.

Step 2

Remove the two fuel chamber screws from the bottom of the pump.
Remove the fuel chamber and port plate. NOTE: Do not drop the

Gerotor from the pump cavity.

Step 3

Separate the port plate from the fuel chamber. Inspect the ame arres­tor screen in the fuel chamber and clean it if necessary.

Step 4

Place your hand beneath the Gerotor and hold the pump in an upright
position. The Gerotor should slide out of the pump housing and into
your hand. NOTE: Observe the position of the Gerotor and be care-

ful not to reverse it when you reassemble the pump.

Step 5

Release the jam nut on the bypass plug. Mark the bypass plug loca­tion and count the number of turns required to remove it. Remove the
bypass spring and plunger. Inspect the plunger. The plunger surface
should be clean and slide freely in the chamber. Check the plunger
pad and remove any debris embedded in its surface. Reinstall the by­pass spring and plunger. Clean the bypass plug. Apply thread sealant
compound to the bypass plug threads. Install the bypass plug. Tighten
the jam nut.

Step 6

Clean the Gerotor and install it in the pump housing. Inspect the o-ring
and gasket. Replace them if necessary. Place the gasket and port plate
on the fuel chamber. Install the fuel chamber assembly on the pump
housing. Torque the fuel chamber screws to 24 in/lbs.

FIGURE 1

3/8” NPT

OUTLET

(TOP)

BLACK WIRE (–)

RED WIRE (+)

3/8” NPT

INLET

BYPASS ADJUSTMENT

(BYPASS PLUG AND

JAM NUT)

2

(BOTTOM)

IGNITION SWITCH

TO ACCESSORIES

TO COIL (+)

FROM

VEHICLE

BATTERY

FUSE (5 AMP)

BLACK

RED

FUEL

PUMP

GROUND

IGNITION SWITCH

TO ACCESSORIES

TO COIL (+)

FROM
VEHICLE
BATTERY

GROUND

VEHICLE

BATTERY

OIL PRESSURE SWITCH

NORMALLY

OPEN

NORMALLY

CLOSED

COMMON

FUSE (5 AMP)

BLACK

RED

FUEL

PUMP

STARTER

GROUND

12 VOLT OUTPUT TERMINAL
ON STARTER THAT HAS 12
VOLT ONLY WHILE STARTER
IS CRANKING

CARB

FUEL

FILTER

REGULATOR

(optional)

FUEL

PUMP

FUEL

FILTER

FUEL
TANK

COMP

FILTER

®

PART NO.

3140

FIGURE 2

FIGURE 3

FIGURE 4

3

WIDE GAP FACES TO THE REAR
(BRACKET SIDE)

SMALLGAP FACES TO FRONT
(BYPASS ADJUSTER SIDE)

FIGURE 5

MALLORY IS A TRADEMARK OF PRESTOLITE PERFORMANCE
CLEVELAND, OHIO

216.688.8300 FAX [phone]
www.malloryperformance.com

1. Jam Nut

2. Bypass Plug

3. Bypass Spring

4. Screw, Fuel Chamber (2)

5. Bypass Plunger

6. Pad, Bypass Plunger

7. Screen, Flame Arrestor

8. Fuel Chamber

9. Gasket, Fuel Chamber

10. Port Plate

11. Gerotor

12. O-Ring

13. Gerotor Housing

14. Motor

FORM #1394

REV. D (01/12)

MADE IN USA

PRINTED IN USA