On Wed, 20 Aug 2008 06:32:15 -0700, "Vitaliy" said: > > With a better picture, my comments on the color of the gasket face area > > don't appear to be valid anymore, the color seems like good sealing all > > around. The valve stem end is well battered, don't think a metallurgist > > will learn anything with microscope there. Looks like the valve head > > rattled in close to normal position before really causing damage. > > So considering this latest evidence, what, in your opinion, is the "final > full story" of what happened? How do I explain (using the pictures and > engine theory) that the valve broke first, and then the water entered the > engine -- not the other way around, like the company claims? Usually a small amount of water will do nothing, and a large amount will bend a connecting rod. Never have I heard of water breaking an intake valve. If there was a functioning rev limiter in place, there is no reason why that valve should have broken specifically because of your use. Cheerful regards, Bob -- http://www.fastmail.fm - Or how I learned to stop worrying and love email again -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist