Originally posted by Big Jim:
Well, actually, it is a very effective method of cleaning carbon from the combustion chambers.
The reason this works, IIRC, is because the water does not compress during the compression stroke, this casues a major increase in compression ratio. For some reason this will help to clean carbon deposits in the combustion chamber (more heat?). So.. this should not be something to try if you are looking to clean a manifold.
