Date: Mon, 11 Sep 2000 21:57:17 +0100 From: J <johsnopsamsafish.com> Subject: Re: 900 After-running
saabsternopsameja.com wrote: > > At 110 000 miles I would hope that I wouldn't need to have my rings > done. The car uses no oil, so I doubt any is slipping into the > combustion chambers, but maybe I'm wrong. Carbon build-up is supposedly > normal for this engine because of the way it's slanted, or so a > mechanic told me. I'm going with Mr. Washington's original prescription > of some Berryman products; if that doesn't work after a couple of weeks > I'm going to take the audacious step of removing the cylinder head and > cleaning out the combustion chambers manually. > Can't really tell from here if the rings need done. Is there any reduction of performance ? The source of the carbon build-up is oil residues, but it builds slowly over a long period. Some people think that you can clean out the engine by giving it a good run! But it is probably to late by now. Removing the cylinder head is a good start. I don't know if it matters that the engine is slanted, one can speculate that maybe the cylinder wear is slightly higher on the lower side of the block ? Johannes