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Old 17-10-2015, 12:29   #1
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Westerbeke Model 20.0 shutdown

I have a Westerbeke model 20.0 bed that shuts down after I release the preheat button. I was told this could be the low oil sensor as the preheat bypasses that. I believe I have found the sensor by not sure.

It is round and has one wire going to the top. How can I bypass the sensor to ensure that is the culprit?

The oil level is up and the pressure reads 50. Also, I can't start it from the box on top of the generator. I can only start it from the salon panel.

Any ideas or good generator mechanics in Ft. Myers in Florida?
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Old 24-10-2015, 17:23   #2
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Re: Westerbeke Model 20.0 shutdown

Download the manual, it will show you the sensor location. I had the same issue, and the odds were so strong that it was the oil pressure sensor that I just bought a new one. If that hadn't been it, it would have eventually failed, and as I remember, it was $30. I actually bought all three of the sensors, keep the two I didn't need for next time. I am almost to opening my own Napa store.

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Old 25-10-2015, 05:38   #3
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Re: Westerbeke Model 20.0 shutdown

When the engine starts the LED light will brighten signalling to release the START switch.
Continue to hold the PREHEAT depressed for about 5 seconds to allow the oil pressure to build up (5 -10 psi) which closes the oil pressure safety switch.

Testing Oil Pressure; Engine Adjustments - Westerbeke 20.0KW Sbeg Operator's Manual [Page 30]
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