PierBridge
Chief Petty Officer
- Joined
- Sep 3, 2004
- Messages
- 625
My dash temp/heat light came on and I shut my 1964 Johnson 75 hp Eletra shift motor down quickly I then replaced the water pump which was in good shape I also swapped out the thermostat water is flowing and the Light comes on after about 5 minutes of idling.<br />Motor starts and idles fine.<br />But it does appear to very hot the heads are tough to touch for even a second or 2 so I believe the heat sensor on the block is working.<br /><br />I have not done a leak down test, I'm thinking head casket or is there maybe some blockage in the Engine block passages.<br /><br />Anyway how would you guys attack this problem.