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MOUNTING PROCEDURE
Step 1
Mount the pump as close as possible to the fuel tank 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.
The pump should be mounted at tank level or below.
NOTE: Increasing distance between 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 clearance holes for 5/16" bolts. NOTE: To
ensure against a potential fire hazard from pump
flooding, mount the pump in a vertical position with
the motor on top.
See Figure 1.
Step 3
To prolong pump life and efficiency, a high volume fuel filter
such as the Mallory COMP FILTER
(Part No. 3500) must be installed between the pump and
fuel tank. Connect #8 AN fuel lines as shown in Figure 2 for
Standard Regulator or #10 AN lines as shown in Figure 3
for Return (Bypass) Style Regulator.
Step 4
Be sure to install one of the Mallory High Volume Fuel
Pressure Regulators between the pump and carburetor.
For maximum efficiency, mount the pressure regulator
as close as possible to the carburetor. See instructions
packaged with the pressure regulator. Make sure all
fittings are tight so that air cannot enter the system.
FIGURE 2
FUEL
FILTER
CARB
(WITH STANDARD FUEL PRESSURE REGULATOR)
FIGURE 3
(WITH REGULAR STYLE FUEL PRESSURE REGULATOR)
®
Series 500 Fuel Filter
REGULATOR
Mallory-Ignition.com
FIGURE 1
FUEL OUTLET
3/4" - 16 (#8AN)
NITRILE O-RING
FUEL RETURN 3/4" - 16
(MUST BE PLUGGED
WHEN USING A RETURN
[BYPASS] STYLE
REGULATOR
FUEL RETURN
FUEL
PUMP
FUEL RETURN
PORT
RED (+)
BLACK (–)
FUEL INLET
3/4" - 16 (#8AN)
NITRILE O-RING
BYPASS ADJUSTMENT
NOTE: Bypass pressure above
20 psi will make the pump draw
more current and significantly
reduce pump life.
FUEL
TANK
FUEL
FILTER
2
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