ORIGINAL: Sturtz
Maybe once or twice a year and or when I mount it on a new plane . Or when I run a pump, Cline, or differant muffler. etc. Or in this case I swapped out an engine and was getting the 160 cleaned up for storage.
My guess is the head bolts got a tad loose and it stuck to the sleeve. But I've never seen one do this unless they were way over heated. I probably need a new gasket is all.
Thanks for the replies all.
If the engine are running without problem or other cause who make engine problem, do not dismantle the engine..
I has a lot of engines who are not dismantled and are running fine..
Jens Eirik