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Question

I have a yanmar 4JH2-hte engine on my 1997 sailboat. I believe that the impeller is bad as the engine is overheating while in use, but holds OK at idle. I am trying to check the impeller but am unable to locate it on the engine. How do I get to the impeller? Where is it located and do I have to remove the waterpump to replace the impeller?

Thank you

Bill

Submitted: 86 days and 4 hours ago.
Category: Boat
Value: $28
Status: CLOSED
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Optional Information

Make (of engine): Yanmar
Model (of engine): 4JH2-HTE
Year: 1997
Horsepower: 75

Already Tried:
nothing. Trying to locate.

Accepted Answer

Hello. Yes, a bad impeller is the most likely cause of overheating. You'll need to remove and disassemble the water pump to replace the impeller.

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Expert: Captain Dave
Pos. Feedback: 98.5 %
Accepts: 
Answered: 8/28/2009

Marine Mechanic

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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