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post #1 of 4 Old 03-31-2008 Thread Starter
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Palmer Johnson? or Atomic 4?

I have an Islander 30 (1974) with what I have been told is a Palmer Johnson four cylinder gas engine. It looks very much like an Atomic 4 to me. Can anyone offer any advice as to if there is such a thing as a Palmer Johnson, or is it just a version of an Atomic 4? Thanks.
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post #2 of 4 Old 03-31-2008
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as far as I can remember, the palmer johnson 4 cyl was a marinized International Harvester "Cub" and Cub Lo-boy" farm tractor motor.

They're as bullet proof as the A4, but you might want to call your local cornbinder dealer to see what parts are still available.

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post #3 of 4 Old 05-25-2008
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Best resource for Palmer and other old marine engines

Here is a great website for old marine engines

oldmarineengines.com
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post #4 of 4 Old 06-17-2008
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First of all, its not a Palmer Johnson. Palmer Johnson is a high quality a mid-western boat builder/importer/boatyard. If its and engine it was a 'Palmer Brothers' or more simply a 'Palmer' engine. Palmer was a Connecticut marine engine builder and one of the first marine engine builders in the country, if not the world. That may help your search.

Palmers were simple, robust, easy to work on, but they have been out of production for something like 40 years and near the end were no where near as popular as Universal Engines. By 1974 it is pretty unlikely that a Palmer was installed in a west coast built boat. For much of its history, Palmer made many of their blocks and internal parts. That said, my family owned a 1963, Dutch built boat with an 8 hp Palmer PW27 single cyl engine which had a Wisconsin built block and internals.

Jeff
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