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Old 11-01-2011, 06:40   #16
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Greetings and welcome aboard the CF, davejdude.

Thanks for sharing that useful relevant information.
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Old 11-01-2011, 07:55   #17
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Originally Posted by SimonV View Post
The main difference between the 4.107 and 4.108 is the 107 has wet sleeves and the 108 dry.
I found this out several years ago when a diesel mechanic told me that I should be using a heavy duty anti freeze instead of the regular duty stuff that I'ld been using in the 4-108 for around 20 years. Well...I flushed the engine out and did convert to the heavy duty stuff with more corrosion inhibitors thinking that it was better. Later I learned that the purpose of the heavy duty anti freeze was to provide extra protection for the wet sleeve and since I had the dry sleeve it was really not necessary to change.
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Old 09-03-2011, 16:57   #18
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Re: perkins 4-108

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Originally Posted by Eventide View Post
there is no such thing as a perkins 4-107. there is only a 4-108.
somebody mis-typed.

there is, however, a WESTERBEKE 4-107.

people get these confused quite a lot.

both engines are fabulous and with just a little care will last 100 years or more.

parts are easy to come by for both engines.

i've had both, a perkins 4-108 in a nice 41' ketch i once had, and a westerbeke 4-107 in a 37' sloop i used to have. both engines are superb.

the '4' signifies the number of cylinders in the engine.

good luck with your search.
Incorrect. There was both a perkins 4-107 and a Westerbeke 4-107
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Old 09-03-2011, 17:04   #19
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Re: Perkins 4-107?

"so I'm leery of anything old"

then why are you contemplating buying a 40 year old boat?
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Old 09-03-2011, 19:01   #20
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Re: Perkins 4-107?

I have a Westerbeke 4-107 in my 1974 42' sailboat
The Westerbeke is a Perkins block. I buy parts most of my parts and gaskets at Pacific Perkins in Vancouver,WA. A lot cheaper then the local Marine Westerbeke dealer.
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Old 09-03-2011, 21:45   #21
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Re: Perkins 4-107?

I had a Perkins 4-107 in my Mariner 35 many years ago. It was bullet proof. I'd have another if they were easy to find.
kind regards,
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Old 10-03-2011, 05:56   #22
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Re: Perkins 4-107 ?

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Originally Posted by SimonV View Post
The main difference between the 4.107 and 4.108 is the 107 has wet sleeves and the 108 dry.
I found this out several years ago after a diesel truck mechanic told me that I should be using a heavy duty antifreeze rather than the green stuff that I've been using for years. It was due for a change over anyway so after flushing the old antifreeze out, I replaced it with the heavy duty stuff. After doing some more reading on the subject I found that the heavy duty stuff was not really necessary for dry sleeve cylinders. At the time I was really unsure if the 4-108 had the dry or the wet.
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