Re: 1980s Evinrude 7.5 hp overheating maybe

[Don]

quote Mumbles:

If the three bolts holding the thermostat housing are tight or corroded in place, don’t use a torch to heat them up! I found out the hard way the housing is made of plastic, not aluminum.

Yeah, I usually just chiseled/broke away/wasted the plastic housing before applying heat…The replacement covers are aluminum though…