Westerbeke 9.0 BCG Technical Manual page 43

3. Check the zinc anode in the engine's heat exchanger periodically through the season; clean and replace
it as needed.
4. Check the belt's tension, allowing a deflection between 3/8 to 1/2 inch along the widest span of the belt.
Replace the belt if it becomes worn.
5. Check for loose fittings, clamps, electrical connections, nuts and bolts and coolant circulating hoses for
good condition.
6. Clean and/or replace the primary fuel filters.
7. Check the condition and strength of the antifreeze mixture in the fresh water cooling circuit. Sample
the mixture from both the recovery tank and manifold. Strengthen the mixture as needed. Drain the
coolant and replenish it should the coolant become discolored.
8.
Clean the carburetor's flame arrester every
300
hours of engine operation or more frequently as needed.
9.
Check the ignition circuit every
300 - 400
hrs.
A. Clean the rotor and cap.
B. Check points and condenser.
Adjust point gap.
C. Adjust the carburetor. D. Check the coil and plug leads.
E. Clean and gap each spark plug.
F.
Check the engine's timing.
10.
Torque the cylinder head hold-clown bolts and adjust the valves every
500
hours of engine operation.
11. Check the condition of the sea water pump's impeller and replace it if needed. Check the sea water
pump for internal wear. Replace worn pump components as needed.
End-of-Season Service (Lay-up)
1. Check the engine's fresh water coolant antifreeze mixture for the correct amount of antifreeze. Drain
and add additional antifreeze/fresh water mixture as needed. Operate the engine to ensure the com-
plete circulation of the antifreeze mixture through the cooling system and then recheck the concentra-
tion of the mixture.
2. Inspect the condition of the zinc anode in the engine's heat exchanger. Clean or replace the zinc anode
as needed. (Keep Spares).
3. Clean the filter screen in the engine-mounted electric fuel pump.
NOTE: The electric fuel pump's base gasket must be replaced.
4. Clean the carburetor's air filter and flame arrester.
5. Change the engine's lubrication oil and oil filter.
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Westerbeke Generators