Starting an Atomic 4 after heavy snows - Page 2 - SailNet Community
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post #11 of 12 Old 11-30-2010
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On page three of the website it says,

The Atomic Four
In 1947 the Atomic Four was introduced. It was a 4 cylinder inline / 1 litre (64.46 cu. in.) / 30 hp engine, Model UJ - 5101 (direct drive) / UJR - 5102 (2:1 reduction gear) / UJVD - 5103 (V drive, 1:1, 1.29:1, 1.67:1, 2:1 reduction gear options) L head (flat head) engine incorporating an integral reverse gear, with roots stretching back to the earliest Universal 4 cylinder engines. It was not a modified Jeep or Farmall tractor engine (the early military and civilian Jeep engine was a 4 cylinder, L head design like the Atomic Four, but it was twice the size of the Atomic Four at 2.2 litres (134 cu. in.) and had 3 main bearings - the Atomic Four has 2. In 1953 Jeep switched to an F head engine) and if anything was based on the successful Utility Four life boat engine. Sales of the Atomic Four grew strongly after 1955 as the recreational sailboat market expanded.

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post #12 of 12 Old 12-01-2010
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If the engine was properly winterized, you will have to assemble the raw water pump. If the engine does not have a heat exchanger on it, I would install one as the engine will last much longer without saltwater circulating through the engine, or maybe you can do a keel cooler.
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