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Michael
Michael, Master Mechanic
Category: Boat
Satisfied Customers: 257
Experience:  Over 25 years experience working on everything from PWC's to Mega Yachts
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Our 4.5w Westerbeke genrator, 1996 runs min. and then stops.

Customer Question

our 4.5w Westerbeke genrator, 1996 runs for 10 min. and then stops.
Serial ####-##-####
We have filled the anti freeze and it is pumping water. It has approx. 150 hours on the generator. We do not know how to fix this problem, can you help?
Submitted: 1 year ago.
Category: Boat
Expert:  Michael replied 1 year ago.

Hi my name is Mike, can we start by answering a few questions.....

How much coolant did you have to add to expansion tank?

Have you checked the output water after it's been running for a while?

Have you checked/felt the generator to see if it's getting hot?

Shutting down after several minutes of running is most indicitive of the generator getting hot enough for the exhaust temp sender to shut down the unit.

If it is not actually getting hot then it is possible that the exhaust temp sensor is failing causing the unit to shout down. the sensor is located on the exhaust manifold or riser/mixer. If the generator is not getting hot then you can try disconnecting this sensor and running the generator to see if keeps running.

Let's start here and see what you come up with and we'll take it from there.

Mike

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