This should go in stupidolts human tricks....<br /> <br />Replacing tstats for the first time. Working with boat in water engine tilted up and sitting on transom - very good accessibility except view is mostly from the top. Take out the 4 bolts. Cover stuck to gasket. Expected. Stick screwdriver in and whack THE DAMN CYLINDER HEAD COVER GASKET - ONE @#@$^&&* GASKET TOO LOW. Took out a good chunk - can see it bent and mangled looking through tstat seat. The drawing in Clymer's doesn't really give a fair indication of how thin the tstat housing is but that's no excuse for not just plain looking.<br /><br />Lucky local dealer had cover gasket in stock. That job took forever - has to be the most complex gasket I have ever seen and cleaning off residue took forever. Not to mention cleaning crud off 22 bolts.<br /><br />It was interesting to see only minor corrosion in all the water passages after 11 yrs in salt, but no I did not pull this idiocy to inspect the water passages....