Specifications

CD580

REPLACING WATER SEPARATING FUEL FILTER

CAUTION

Any water entering the fuel injection system will disable the system. Check for water in water separat-

ing fuel filter before startup, daily.

CAUTION

If water should enter the fuel injection system, take unit to an Authorized MerCruiser Dealer IMMEDI-

ATELY, so that corrosion and rusting of the injectors and other components can be avoided.

WARNING

Be careful when changing water separating fuel filter. Diesel fuel is flammable. Be sure ignition key is

OFF. Do not allow fuel to contact any hot surfaces which may cause it to ignite. Do no tallow sources

of open flame in the area. Wipe up any spilled fuel immediately. Dispose of fuel soaked rags, paper,

etc. in an appropriate air tight, fire retardant container. Fuel soaked items may spontaneously ignite

and result in a fire hazard which could cause serious bodily injury or death.

1 Replace as follows:

A Remove filter retaining ring.

B Pull down on filter to remove it.

C Clean filter sealing surface on fuel filter adaptor.

D Install new gasket.

E Install new filter and secure with retaining ring.

F Remove the drain cap and O-ring from bottom of the filter. Install on new filter. Check that bottom drain cap

is securely tightened.

G Fill fuel filter as explained previously. Check drain cap for fuel leaks.

WARNING

Make sure no leaks exist before closing engine hatch.

H Start and run engine. Check filter connection for fuel leaks. If leaks exist, recheck filter installation. If leaks

continue, stop engine immediately and contact your Authorized MerCruiser Dealer.

CD581

Corrosion And Corrosion Protection

INTERNAL COMPONENTS

2 Sacrificial anodes are installed in the cooling system. They are mounted in the oil cooler and heat exchanger.

Check at least once yearly. Replace when eroded more than 50%.

A Length When New - 1-1/2 in. (38 mm)

B Diameter When New - 1/2 in. (13 mm)

C Example of a deteriorated anode.