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Old 07-06-2011, 14:53   #1
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Westerbeke Generator problems

The 15 KW generator is producing 140-143 volts, showing on the boat volt meter and when I test it from an outlet. Is it possible to adjust down? The manual states reducing the RPM can regulate from 60 to 50 hertze. I also have a 5KW that just shut down like it ran out of fuel. The pre-heat toggle does not make the usual ticking noise when actuated. It has a new fuel filter and the Racor is showing no pressure built up. The 5KW is a 2003 and the 15 KW is an 88
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Old 07-06-2011, 15:07   #2
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Re: Westerbeke Generator problems

Did you test the voltage under load? The small gen , does it have an electric fuel pump? Sounds like that could be the problem
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Old 07-06-2011, 15:13   #3
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Re: Westerbeke Generator problems

Aloha Capt Rich,

I don't know a thing about the 140-143 volt problem except I had it happen at about 160 volts on a big Honda generator once and it turned out to be the regulator and needed to be replaced.

There are so many reasons for your 5KW to shut down. It could be anything from a short in the wiring to your solenoid actuated fuel switch, an air leak in your fuel pickup line. I would suspect if you are not getting the preheat to work there might be some faulty wiring issues. When you try to start it does the lever arm on the fuel injection pump for the fuel shut off go to the open position?

I guess those would be a couple of places to start but always go for the simplest first, like clean fuel, filters and necessary voltage to your start system. Diesels of all makes need to have a pretty hefty spin in order to start.

kind regards,
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Old 07-06-2011, 15:24   #4
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Re: Westerbeke Generator problems

Rich, the regulator is shot or has come disconnected. If there are no gross wiring problems--something fell apart-- then your regulator needs keelhauling.
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