Briggs using oil
My friend's engine started to smoke real bad all of a sudden. Engine is an overhead valve, Head gasket blew into the push rod chamber, this pressurized the crank case and pushed oil into the air filter chamber, he used it for a couple of mowings lucky it didn't erode the block in the area of the bad head gasket, there was about .005 lower which the head gasket will take up. There is a long space in that area between head bolts. Easy fix pulled head, new Gasket, followed Briggs torques and has been mowing up a storm. Grass clippings accumulated from 13 years of use in the push rod chamber area which may have caused a spot to overheat. Hope this helps, My Dollars worth.
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