My Ford Lehman
SP90 overheated. Overheating
causes its own problems. But how do I determine what caused the overheating
in the first place?
I replaced both hoses from expansion tank to the heat exchanger
because one was leaking. The exchanger and exp. tank were serviced in Aug and I have not used the boat
I replaced the leaking cap on the fresh water pump
. My pump
has two exits and the cap covers the one my engine
does not use.
I replaced the expansion tank lid.
I started it and it heated to 220 before I shut it down. Usual operating temp is 180-190.
There is moisture under the fresh water pump
where the shaft enters the block. I assume this means the bearings or seal are shot. I ordered a new fresh water pump
is stalled due to Covid.
Is it the pump? Could it be the thermostat? Or what else?