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post #6 of Old 03-25-2012
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Re: Westerbeke 4-107 repair or replace?

Originally Posted by Rockter View Post
It's not a common engine here in the UK, so I don't know much about the unit.

Run it in the boat a while and get a good opinion as to what is wrong with it. Put a compression meter on each of the pistons. Listen to the bottom end. Put an oil presure guage on there too, if you can. If the crank is scored, I would look at a recon motor as just about everything else is likely to be worn. The figure of 4k$ will buy a lot of recon motor.

With a couple of friends, and like 1/2 hour with a light-duty crane, you can lift out the motor.

Place it on a palate and take it home.

Strip it and find out what is wrong. Excessive mechanical noise normally leads the owner, and quickly, to the problem.

If you are going to replace the motor, put the same design of motor and gearbox in there again. You really do not want to get in to the problems of different engine mounts. They can be quite a headache.
The Westerbeke 4.107 is a Perkins right down to its dip stick, the UK is full of them. Even the later Westerbeke 4.108 are mostly Perkins and a 4.108 is essentially a 4.107 but with wet sleeves the bolt on bits can be a little different but parts a readily available.


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