Re: johnson 60hp 1968 johnson not pumping water
Didn't see a 60 hp in 1968, if it is a 3 cylinder (55 hp) the thermostat is at the top of the cylinder head. If it is a 4 cylinder (65 hp) the thermostat is located between the cylinder heads, in a plastic block with a coolant hose going to each cylinder head.
You can go to the johnson web site and locate your engine and look at a parts breakdown, that might help.