Westerbeke M4-30 Owner's Manual download pdf (Page 29)

WBE

OIL FILTER

FIGURE

UNIVERSAL RECOMMENDS THAT YOU

USE

FACTORY REPLACEMENT FILTERS. THE USE OF

OTHERS

MAY VOID THE ENGINE WARRANTY.

SEA WATER PUMP:

Your engine is equipped with a rubber impeller type sea water pump.

CAUTION:

NOT

RUN

PUMP DRY AT ANY TIME OR YOU WILL DAMAGE THE IMPELLER,

CAUSING ENGINE TO

OVERHEAT.

You can use methyl alcohol based anti-freeze compounds such as Zerex,

Shell Zone, Pyro Permanent,

Permagard and Dowgard.

REPLACEMENT

OF SEA WATER PUMP IMPELLER:

1. Be sure engine is stopped. Turn off sea water inlet valve.

2. Loosen and remove the pump cover screws.

Tap cover on side to loosen, being careful not to damage cover gasket and remove cover.

4. At this time be careful not to pull the pump shaft forward or out of its present position.

the

shaft does come forward during the changing of impeller, it will be necessary to remove

complete pump. .

5. Remove the snap ring located

the end of shaft

center of impeller, with shaft held in

place.

The impeller can now be pulled off the pump shaft. Be sure to hold shaft in place with a

screwdriver or etc., when removing the impeller.

Replace with the new impeller by rotating. (You can lubricate impeller with vaseline or oil

prior to installing.) This will also prevent burning

new impeller when first starting engine.

Replace snap ring, being sure it is in the groove all the way around.

Replace gasket and cover (oil inside

cover).

10. Replace the cover screws and tighten evenly.

11. Open sea water inlet valve, check for leaks.

12. Engine can now be started, check engine temperature.

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Westerbeke M4-30 Owner's Manual Page 29

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