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TOPIC: Westerbeke Model W33 Piston Type

Westerbeke Model W33 Piston Type 16 Sep 2007 21:06 #1

  • rrdarby
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Need to replace a cracked piston in a Westerbeke Model W33, 12.5KW Diesel Generator. When requesting this part I was asked if I need a "standard" or "oversize" piston. Boat is 1 1/2 hours from here and wonder if anyone has any ideas on this subject?

Engine has never been overhauled and isn't being overhauled, so I presume I just need the "standard" size piston.

Thanks in advance for any insight you can provide

Darby

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Westerbeke Model W33 Piston Type 16 Sep 2007 23:20 #2

  • tweekes
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I'm not an expert here but having said the motor has never been overhauled, I also would assume that it is the standard size. We are assuming of course that the cylinder bore is OK, if not, you are in a whole new universe. I did a top end rebuild on my 8K and it quit burning oil altogether. It still has a problem with the run/stop solenoid but I think it's a bad connection somewhere because it works if I am on shore power and the battery charger is going, if not, I have to go down and push it all the way in at which time it works fine. Seems like a voltage problem. BTW, I hate generators. Seems like there is always some kind of problem. However, in south FL, it is a necessity.

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Westerbeke Model W33 Piston Type 17 Sep 2007 11:12 #3

  • captgeorge
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There is a bypass mod done to that to correct the low voltage problem, has that been done?

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