is to blow the engine. After nearly 70 years, the engine finally gave up, breaking the crankshaft and breaking a piston. Fortunately, the block appears to be ok.
Since this is a major repair, I am going to take this opportunity to replace all worn parts in the engine and transmission, hopefully getting another 70 years out of it. Ill detail the costs and parts list associated with this in case anyone is considering a major overhaul for their M37.
This engine lacked power but started and ran well for about 750 miles that I drove it. It suddenly started making a loud clunking sound on a trip which caused me to shut it off and start looking for a way to get it repaired.
At least when it’s done I should resolve that rear main oil leak that has been bugging me.