1
MALLORY IGNITION
www.malloryracing.com
COMP PUMP
®
SERIES 110FI
ELECTRIC FUEL PUMP
PART NO. 5110FI
NOTE: DO NOT RUN THIS PUMP WITHOUT FUEL (EXCEPT FOR BRIEF PERIODS WHILE PRIMING).
INSTALLATION INSTRUCTIONS
FORM 1085 (REV. E) 11/04
GENERAL INFORMATION
The COMP PUMP
®
110FI Series Electric Fuel Pump is
a high pressure fuel pump designed for fuel injection
applications. In all cases, this fuel pump
must
be used
with a return style (bypass) fuel pressure regulator.
Using the pump with any other type of regulator (or no
regulator) will result in severe fuel pump damage. We
recommend the following return style fuel pressure
regulators:
4–25 PSI
Part No. 4307M (gasoline or alcohol)
30–100 PSI
Part No. 4305M (gasoline or alcohol)
As stated earlier, you must use a return style (bypass)
regulator with this fuel pump. You must install a fuel
return line between the fuel return port of the regulator
and the fuel tank. We recommend at minimum a #8 AN
(1/2") fuel return line.
An air bleed system is located at the bottom of the
fuel pump to assist in priming the fuel pump. The air
bleed line is plumbed to the fuel return line. If you are
running 10 PSI fuel pressure or less, install a 1/8" NPT
plug in the air bleed port, When installing the plug, use
a thread sealant compound on the fitting threads)
purchase 1/8" NPT fittings or plugs, as well as thread
sealant compound, at any hardware store). Do not use
teflon tape. Teflon tape can get into the Gerotor and
lock the pump. Also, do not overtighten the fitting.
This could damage the pump housing.
Be sure to install a suitable fuel filter (max. 100 micron)
between the fuel tank and the fuel pump, such as the
Mallory COMP FILTER
®
Series Part Nos. 3140 or 3500.
This prevents debris from becoming wedged in the
fuel pump’s Gerotor and locking it.
An additional fuel filter (maximum 10 micron, such as
the COMP FILTER
®
160 Series Part No. 3160) must be
installed between the fuel pump and the injectors. This
prevents debris from clogging the injectors.
SERVICE PARTS:
Part No. 3167
Seal/Repair Kit, Gasoline (may be
used to convert alcohol/methanol
fuel pumps to
gasoline)
Part No. 3168
Seal/Repair Kit, Alcohol/Methanol
(may be used to convert gasoline
fuel pumps to alcohol/methanol)
PARTS INCLUDED IN THIS KIT
1
COMP PUMP
®
110FI Series Electric Fuel Pump
2
Fittings, 3/4-16 x #8 AN Flare
2
O-rings, Nitrile 0.644ID x 0.087THK
SPECIFICATIONS
Maximum recommended operating pressure:
75 PSI continuous, 100 PSI intermittent
Fuel pump thread sizes:
Inlet/outlet, 3/4-16 (#8AN)
Air bleed system, 1/8" NPT
Recommended fuel line size:
1/2" (or #8AN)
Current draw:
12 AMP Typical
Oil pressure switch rating:
25 AMP
Fuel pump over current protection:
25 AMP fuse
Fuel application:
Gasoline
Use Seal/Repair Kit Part No. 3168 to convert the
COMP PUMP
®
SERIES 110FI Electric Fuel Pump to
alcohol/methanol.
