So I have a 25 (m25c3). After running about a mile it starts to rattle (like two pieces of tin hitting each other) and then dies. It will start back up but will only run close to idle. I've done the usual pump, t-stat and found the water tube pushed up inside the housing. Good water pressure now. Fixed that. I took the head off to look at the gasket and found zero problems.
There looks like a small crack in both cylinders. TIA
There looks like a small crack in both cylinders. TIA