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Impeller not turning on genset?

skray

New member
Fixed Solenoid on gen set (Kolher 5e) ran it for an hour at the dock no problems, when i got under way I heard the exhaust sound change, no water coming out so shut it down.

Blew line out, no clog. Took impeller cover off, impeller looks good, so cranked engine with cover off and it's not turning??

Anyone know how the shaft connects the gererator??
 
Is the shaft turning? It is not uncommon for the center hub to separate from the rubber impeller. If it is not, remove the pump housing and check the coupler.
 
The sea water pump is belt driven on my Kohler 4CZ. Yours may be same. Check the belt! This is likely the problem. Should be a fairly simple fix!
See your Kohler OEM manual.

Equally as important is this: your engine should have been shut down via the exhaust over-temp shut down swith found in the outlet of the exhaust manifold. I'd be wanting to know why it did not function!

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