Keyboardman
Petty Officer 1st Class
- Joined
- Sep 10, 2015
- Messages
- 360
Hi all, So after finding out my thermostat was opening at 190 instead of 160 like it should, I ran the boat in the water without it to see if that helped the overheating problem. Well, the temp gauge wouldn't even get into operating range so I thought that was a good sign. I opened her up and was running about 3800 rpm on plane. Was running great then after a few minutes, it started missing. Shut her down and checked the engine. The exhaust manifold was cool, the intake manifold was cool, the block was barely warm and the head was extremely warm. Let her cool down and limped it back to the ramp. Could I have a cracked head? Bad head gasket causing water to bypass somewhere in the head? Or, maybe just need to have the rest of the engine up to operating temp like it should be? I'm stumped. Everything in this cooling system has been replaced.