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Old 09-07-2004, 03:05 AM
Butch Dennis Butch Dennis is offline
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Re: Water Cylinder Decarbonizing... Should I?

Like most old ideas, they are based on fact, somewhere. Yes, water mist will decarbon the combustion chamber and piston tops. There is one product out there called SeaFoam that is supposed to do the same thing. The problem comes up: how do you know what is enough? And the only good way to prove it is to disassemble the engine and look. And who wants to do that?
We used to use ATF to do the same thing, it would also foul the plugs. We would pour it down the carburator with the throttle at half or better until about a half quart was gone and then lower the idle until we stalled the engine. Let it sit for 20 to 30 min. and try to start it. Usually had to clean the plugs to get it to start. And oh the smoke (great for the mosquitos).
To answer the question, I don't think it is worth it, since I can't prove what if any good it has done.

BTY, when it rains, don't you get a lot of mist drawn in with the air, anyway?
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