If you have no major oil leaks check around your rear seal pan. an ounce of oil coming from your rear seal will look like a 10 gallon amount of oil blowing back to the rear end. Otherwise I would check the breather down tube. On a few occasions it can cause problems. If it is very dry you may have a blockage. Next and be patient, run engine for one half hour at night and use a very bright directional light. Check from front to back. If you don't see any white smoke or slight oil seep, you more than likely have a possible oil ring problem. Get some Sea Foam and depending on how much gas you have in tank add up to 1/2 cup in tank. Rev engine to 1100 rpm and gently pour Sea Foam into carb directly. Do not let the engine flood out with the Sea F. let run for 1 hour at about 700 rpm. It works wonders on 216 and 235's . Good luck. Doc.
Last edited by Doc.Hall; 06/29/2020 6:32 PM. Reason: grammer
