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Atomic 4 sailboat inboard engine.

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Uploaded by on Mar 19, 2011

Atomic 4 engine that I want to sell on Ebay.
compression
1 - 105
2 - 100
3 - 100
4 - 110

Vacuum at idle 19"

Oil pressure set at 30 when warm. Could easily go up to 45 but that just wears out the oil pump
Rebuilt carb
Rebuilt distributor
Cleaned
Changed oil
Added PCV valve update
Tuned and set point gap
New plugs

This engine was pulled from a working sailboat that I bought then decided to scrap. I have decided to sell as I don't need a second engine.

The Atomic 4 has been one of the most popular gas engine for sailboats over 40,000 produced since the late 40's though early 80's. With very little design changes

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Autos & Vehicles

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All Comments (3)

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  • how much??? Steve 808 690 3901

  • That thing sounds really good.  A sweet sounding motor, like music to my ears.

  • My dad was a chief engineer.  He had an old atomic 4 he wanted to rebuild but he died unexpectedly. He said those motors were great. I never saw one run untill today.

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