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In a message dated 11/18/1998 9:38:30 PM Eastern Standard Time, toby.erkson@intel.com writes: << I can understand the cylinder walls getting scratched up because of the rings but could the pistons themselves really get marred? And if the mixture was really this rich wouldn't it show by diluting the oil or at least giving it a gas smell? >> The piston does contact the cylinder wall due to a slight wobble because of the few thousandths of space between the piston and the cylinder as the piston rocks top to bottom and slides side to side on the piston pin. If the cylinder walls are scored this roughness then starts to work on the pistons. If you look at the top of the piston as it is installed in the engine, most of the wear should be at the top and bottom on the head and skirt of the piston due to the rocking motion and all along the sides due to the sliding motion. And yes the oil will show signs of gas getting in past the pistons. I had that problem on one of my non-VW cars, at times it seemed as if the oil level would actually rise! David 71 Squareback ------------------------------------------------------------------- Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe