I'm still very much interested in the procedure followed by Kenichi for cleaning the combustion chamber. But I can't help but think, assuming there is hard baked on carbon on the piston tops etc. and you are able to dislodge this with a long soak of combustion chamber cleaner, where does all this carbon go? In to the oil pan? If so wouldn't it just clog oil galleries as soon as the engine is started? Even draining the oil after wards, might not get rid of the larger chunks of carbon, because the oil getting drained is cold, and very viscous. If it stays in the combustion chamber, wouldn't it just re-stick to the pistons as soon as the engine goes through a few heat cycles. I'm not trying to shoot down the method, just gain a better understanding of how it works. Also did you replace the spark plugs back in the holes after filling them with cleaner? And how much did you use? Also was the engine warm when you did it? Sorry for all the questions, I'm just sick and tired of my chr! ! onic, and heavy pinging. L8r, S eth. '91 XE 182,000 miles, and some mods.
