Fuel System Components (Typical); Water Separating Fuel Filter; Replacement - MerCruiser GM4 Service Manual

Fuel System Components
FUEL SYSTEM
g
b
f
a
Typical
a - Fuel Tank
b - Anti Siphon Valve
c - Water Separating Fuel Filter
d - Fuel Pump
e - Carburetor
f - Fuel Filter
g - Vent Hose
h - Fuel Line
i - Sight Tube

Water Separating Fuel Filter

(If So Equipped)
The fuel filter consists of the fuel filter base and fil-
ter element.
a
c
b
a - Filter Mounting Bracket
b - Filter Element
c - Sealing Ring
Index
90-816462 2-695
i
h
d
c
e
50830
72678
Filter should be replaced when fuel flow is restricted
or filter flow is questionable. DO NOT attempt to flush
out filter.

Replacement

NOTICE
Refer to "Precautions," in this section, BE-
FORE proceeding.
1. Disconnect battery cables from battery.
2. Remove fuel filter from base. A filter wrench may
be needed to loosen element.
3. Lubricate sealing ring(s) of new filter with SAE en-
gine oil.
4. Install new filter, tightening securely by hand.
5. Reconnect battery cables. Make sure water is
supplied to cooling system and start engine.
Check for fuel leaks.
a
c
b
a - Filter Base/Mounting Bracket
b - Filter Element
c - Sealing Ring
72678
FUEL PUMP - 5A - 3