Engine block hot enough to boil water!

Jeff 330CI · Feb 23, 2009

Today I was using my 1965 Nuffield 10/60 Tractor. After about 30 minutes of light use, the engine block was so hot that it could boil water. It was cold out today and I was not working it hard. It has never got that hot before even after hours of hard useage on a hot day. The oil dipstick was even hot enough to boil water. The coolant was full and was operating at the normal operating temperature. This has never happened before. Any ideas?

Thanks,

Jeff

oj · Feb 23, 2009

I"m going to make an educated guess here that your water pump is not doing it"s job. If the engine is that hot, and the coolant temp is still showing normal, it may be that your gauge and/or it"s bordon tube have also taken this opportunity to quit.

After we bought one of our 10/60, the tractor would boil just by driving it down a road, the water pump showed no signs of problems, no leaks or anything like that, but when we pulled it apart the keyway and woodruff key that drive the impeller were so worn that the impeller would not turn under load. It"s not the first one I"ve done on 10/60 either... mind they are at least 40 years old now.

Hope that helps, Oli.

oj · Feb 23, 2009

if you still have problems, you could try this forum
Nuffield/Leyland forum

El Toro · Feb 24, 2009

Check that impeller as OJ suggested. I would check that thermostat too. Hal

Engine block hot enough to boil water!

Jeff 330CI

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oj

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oj

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El Toro

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