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Overherating on a standard 35

2

2tractors

Well-known Member
After removing the head and cleaning the water ports and replacing, my 35 still ran hot so I removed the thermostat with same results.Noticed the radiator was running around 80 degrees cooler with the infared gun so I swapped out the radiator and ran for a good 30 minutes with no boiling. Engine only reached 180 with front of radiator blocked off with cardboard. After removing cardboard the engine cooled to about 165 and radiator read about 40 degrees lower so I"m guessing that if a radiator reads way lower than the engine then its a sign of stopped up flues. Anyone know what the running temp is on the exhaust? Mine read 700?
 
For a fuctioning down flow radiator, the very top of it should read the almost same as the coolant gauge temperture and the bottom should read much cooler.

A total internally blocked radiator will be cold throughout because no hot coolant is flowing through it. If it"s partially blocked internally, then it will be hot on top and much cooler at the bottom if the air side is working properly I think this is what you are saying.

If the air side is totally blocked, then the radiator will he hot all over.
 
That sounds resonable but I would think even the top would be somewhat cooler than the source of the heat. The third word gauge reading the coolant stayed on zero while the infared read 180 and when it was boiling it read in the green so without having numbers the gauge is not of much use.I"ll check the manifold temps with one of the other tractors and compare.
 
I may as well the way they work! Did you buy the tea 20? If so don"t expect to swap many "to" parts over.
 
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