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Blown Head Gasket Problem Solved
Bruce Klosky, Derry, Penn.: “Having had head gaskets blow twice in the 25 hp. Kohler engine in my zero-turn mower, I was at a loss as to what to do. It always ran so hot that the muffler would glow red while moving, and backfire and diesel after I turned it off. The dealer told me they all do that but it seemed to me something was wrong. While looking through some old auto repair manuals I read that the heat problem could be caused by spark plugs. The Champion RC14YC that Kohler recommended were the same “hot” plugs used in a Chrysler 360 V-8. I was able to find ‘cool’ E3 plugs at a local auto parts store. I installed the E3.64 spark plugs and noticed an immediate change. The muffler no longer glows red and I’ve noticed I have more low-end torque. The engine doesn’t backfire or diesel anymore when I shut it off.”

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2017 - Volume #41, Issue #2