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I forgot to include pictures of the combustion area under the head. Note the green deposits. I sc***** some of it away as I wanted to collect a sample for possible future analysis.
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Kohler engine siezed
3
My son's son to be father in law gave me a Cub Cadet to mess with. The engine, a 19 hp Kohler Courage, had locked up with a little under 200 hours on the engine. I disassembled the engine. The piston was stuck to the bore. There was a dark brown goo more akin to roofing cement in the bore and all over the piston. There is also nasty brown sludge in the bottom of the crankcase. Here are a couple of pictures.
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Piston
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Bore
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Bottom of crankcase
In the process of trying to clean the crud off the piston, I tried a variety of solvents. I tried gasoline, acetone, toluene, xylene, lacquer thinner, and naptha. Nothing dissolved it. After giving it a little thought I tried water. It dissolved instantly!
I daresay that someone put sugar in the tank. I know some will say that sugar does not dissolve in gasoline but sugar will certainly dissolve in ethanol and since much of the gasoline is 10% ethanol, my conclusion is sugar in the tank.
To be honest I think someone dumped a Mountain Dew or green Gatoraide into the tank. The green coloration on the piston and light green deposits on the head suggest that is a possibility.
Richard
Piston
Bore
Bottom of crankcase
In the process of trying to clean the crud off the piston, I tried a variety of solvents. I tried gasoline, acetone, toluene, xylene, lacquer thinner, and naptha. Nothing dissolved it. After giving it a little thought I tried water. It dissolved instantly!
I daresay that someone put sugar in the tank. I know some will say that sugar does not dissolve in gasoline but sugar will certainly dissolve in ethanol and since much of the gasoline is 10% ethanol, my conclusion is sugar in the tank.
To be honest I think someone dumped a Mountain Dew or green Gatoraide into the tank. The green coloration on the piston and light green deposits on the head suggest that is a possibility.
Richard
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