Reply To: 1972 85 hp V4 overheated…..

[Don]

I’m not saying remove the bolts, just torque them, and snug up the exhaust cover screws, you will have to remove the ignition bracket to get at them though…
I don’t trust the aftermarket impellers, heard too many negative things. Does your engine have its original aluminum impeller housing, or has it been replaced by the plastic one with the SS liner. The plastic one has a spaghetti seal that seals it to the impeller housing, make sure that is in place.
Your temp specs seem correct.
The overhead occured at high speed, correct? Your latest post almost makes it seem like occured at slow speeds.
I have never heard of one of these engines getting “air locked” cooling wise, but I guess anything is possible.
The paint didn’t get burnt/discolored, and no melted wiring, correct?
I wouldn’t waste time and money with a temp gage. The same scenario occurs, the engine starts to bog down, then you look down to see the gage pegged. Plus, you have to add an external wire to the harness for the temp gage sender up to the gage on the dash.