We put the repaired radiator back on my "new" 240U yesterday. Installed a new thermostat. Put 2 gallons of new coolant in it, which brought the level up above the fins in the radiator.
I started it up and let it run a while. Eventually it started to warm up. Looked in the radiator while it was running. The coolant level was rising, and there was an occasional bubble.
As it got close to 170 degrees, it started pushing coolant out the overflow. Then the temperature shot up to 240, so I shut 'er down.
We did a compression check. 75 - 75 - 110 - 100.
There does not appear to be any water in the oil.
My guess is, head gasket is leaking around #1 and #2 cylinder, into the water jacket.
I started it up and let it run a while. Eventually it started to warm up. Looked in the radiator while it was running. The coolant level was rising, and there was an occasional bubble.
As it got close to 170 degrees, it started pushing coolant out the overflow. Then the temperature shot up to 240, so I shut 'er down.
We did a compression check. 75 - 75 - 110 - 100.
There does not appear to be any water in the oil.
My guess is, head gasket is leaking around #1 and #2 cylinder, into the water jacket.
