Mallory Ignition Mallory COMP PUMP SERIES 70 ELECTRIC FUEL PUMP 4070LP - Manual

COMP PUMP
®
SERIES 70
ELECTRIC FUEL PUMP
PART NO. 4070LP
INSTALLATION INSTRUCTIONS
FORM #1394 (REV. D) 01/12
NOTE: DO NOT RUN THIS PUMP WITHOUT FUEL
(EXCEPT FOR BRIEF PERIODS WHILE PRIMING).
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
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 pres-
sure 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 fittings, use a thread sealant compound
(you can find this at a hardware store) on the fitting threads. Do not
use thread sealing tape. Thread sealing tape can get into the Gerotor
and lock the pump. Also, do not overtighten the fittings. 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 pres-
sure, 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 filter (minimum 40 micron filtration)
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.
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 efficiency.
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 fire
hazard from pump flooding, mount the pump in a vertical posi-
tion 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
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.