Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Flathead 6 smoking and blowby
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Old 01-19-2013, 11:17 AM
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Could be a stuck ring. I would run a compression check to see if all cylinders are within 10% of each other.
That oil pressure sounds a little low but I am not a flat head guy so dont go by me. I would at a minimum dump the oil and add fresh oil with some Marvel Mystery oil. This will take care of stuck rings a lot of the time. A fresh quality oil filter may help the pressure.

Good luck !!
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