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A couple of things I noticed; the water from the telltale was getting to be hot water when the motor was beginning the overheat. There is a very small amount of water making its way through the blubber hole/exhaust, but almost none. Shouldnt this water remain cold at all times since it hasnt circulated to the cylinders yet? It takes a solid 3-4 mins before the overheat occurs. Even at mid range RPM.
Im not sure if this was a salt motor, but when I did the impeller, it had more sand and debris buildup in the exhaust housing and impeller area then anything Ive ever worked on.
Ill ending up pulling the powerhead and examining the starboard cover and gromits and report back.
Just hope those 6 powerhead screws and 4 exhaust tube screws cooperate!
I dont think this motor has ever been worked on before, it is all original. I acquired this as a trade in so nobody to ask the history on it.