I just picked up this weekend another 7.5 HP Evinrdude ( E8RCIC ) that had a busted lower unit, probably ran out of oil, the gears were all scrap. Anyways, having a spare lower unit from my first Evinrude 4.5HP I was in business if the motor was ok. And yes it's ready to use, just need a new cover gasket for the tstat before the real test.
And yes, my cheap compression tester reads 95-100 PSI on both cylinders, motor runs really good and it does have a tstat but the head gets hot after 3-4 seconds touching it. Is this ok or it overheats? I'm planning to get a laser tstat to check motor temp.
My '83 7.5HP Johnson for my SIB doesn't run good with a tstat but very good without. What can cause that? The tstat was installed the same way and it did opened. I think it will be harder on gas if I don't run it with it...
And yes, my cheap compression tester reads 95-100 PSI on both cylinders, motor runs really good and it does have a tstat but the head gets hot after 3-4 seconds touching it. Is this ok or it overheats? I'm planning to get a laser tstat to check motor temp.
My '83 7.5HP Johnson for my SIB doesn't run good with a tstat but very good without. What can cause that? The tstat was installed the same way and it did opened. I think it will be harder on gas if I don't run it with it...