Series IIA Overheating with a new radiator

[SafeAirOne]

Lesson learned: Replace the possibly defective $9 consumable part before replacing the possibly defective $250 non-consumable part.

Good news is that you now have a spare good radiator in case the ProLine one goes south.

[tmckeon88]

Yes, indeed, I did replace parts in their descending order of cost, which was not the smartest. That old radiator looked bad though- fins were just showering off it. I discarded it, unfortunately. I am keeping my old water pump. That actually cost less than the thermostat. I'm still not sure exactly what was wrong- if the thermostat was sticking shut or what.

The good news is in the process of working on it I discovered my oil pressure warning light switch was leaking oil, so I replaced that- $6. That took care of an annoying oil leak that I've put up with for years. I thought it was the spin-on oil filter adapter I had put in a while back but I think it was just the sensor. You could actually see oil dripping out of it while the engine was running. So a small victory there too.

Tom