Fuel Supply Connections - Mercury MerCruiser MCM 454 Mag MPI Service Manual

MIE MODELS - HURTH TRANSMISSION

Fuel Supply Connections

Be careful when working on fuel system. Gasoline is extremely flammable and
highly explosive under certain conditions. Do not smoke or allow spark or open
flame in area. Wipe up any spilled fuel immediately.
Avoid gasoline fire or explosion. Improper installation of brass fittings or plugs into
fuel pump or fuel filter base can crack casting and/or cause a fuel leak.
Apply #592 Loctite Pipe Sealant with Teflon to threads of brass fitting or plug.
DO NOT USE TEFLON TAPE.
Thread brass fitting or plug into fuel pump or fuel filter base until finger tight.
Tighten fitting or plug an additional 1-3/4 to 2-1/4 turns using a wrench. DO NOT
OVERTIGHTEN.
Install fuel line. To prevent overtightening, hold brass fitting with suitable
wrench and tighten fuel line connectors securely.
Check for fuel leaks.
1. Connect fuel line from fuel tank(s) to engine. Ensure that connections are secure. Check
for leaks.
Index
Page 2D-12
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a - Fuel Inlet Hose Connects Here
WARNING
WARNING
SERVICE MANUAL NUMBER 23
a
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90-861326--1 MARCH 1999