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Gwynne Spencer
 
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Default Starnge raw water pump failures

Both my engines (Volvo Penta KAD42 diesels) had a raw water pump
(flexible impeller type) failure after not being used for a long
period of time. Apparently the screws holding the "cams" in place
corroded and the cams came loose and spun around with the impeller.
The mechanic says that the inside surface of the pumps was not damaged
- sort of hard to believe that the spinning metal cam did not gall the
surface??

Anyone ever see this kind of failure?

Gwynne Spencer
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