Hi all; Well, I screwed up. I was just about to install the valve cover after replacing all 10 rubber valve seals and a valve adjustment and realized that I installed the seals on piston #3 backwards... I don't want to go back and do the job over now, if I can get away with it. I planned on changing the chain with the next valve adjustment, and I wouldn't mind getting another valve seal kit and re-doing the job then. Anyway, what would the consequences be of "leaving it as it is" for the next 12,000 miles or so? I know that there are intake and exhaust seals, of different types for a reason. I'm curious as to what the difference is between the two types? I noticed that the originals, although color coded green and black, were slightly different than the replacements. The new ones have a metal shield over the exhaust seals. I expect that there would be a difference in the long term, but does anyone see any MAJOR problem with leaving piston #3's seals installed in the reverse order, assuming I'll re-do it all in a year or so??? Any advice would be most appreciated... Nick - Hazleton, Pennsylvania P.s. - noticed some blowby on #2 pistons exhaust valve seal. There was light charring outside the seal and that particular valve is a bit looser than the rest, but not by much. Is this bad news??? I assume it was caused by a worn rubber seal???