My JD tractor temperature

37 chief · Oct 1, 2021

Mowing some bottom land today it was probably pushing 90, or more out. My JD was running hotter than normal, probably 200+ degrees on the gage. It wasn't boiling, so I wasn't real worried. I just kept my screens clean. My question is just because it's hotter out why is my tractor heating more than normal?
Seams to me it would have to be 200 degrees out, to effect the tractor temperature. Going back and forth looking at the front hood and muffler all morning, and watching frogs getting run over. My mind starts to come up with crazy things. Tractor temperature is one of them today. Stan

Jim.ME · Oct 1, 2021

(quoted from post at 18:46:56 10/01/21) Mowing some bottom land today it was probably pushing 90, or more out. My JD was running hotter than normal, probably 200+ degrees on the gage. It wasn't boiling, so I wasn't real worried. I just kept my screens clean. My question is just because it's hotter out why is my tractor heating more than normal?
Seams to me it would have to be 200 degrees out, to effect the tractor temperature. Going back and forth looking at the front hood and muffler all morning, and watching frogs getting run over. My mind starts to come up with crazy things. Tractor temperature is one of them today. Stan

The less the difference between the engine temp and the ambient temp the less heat will transfer from the radiator fins to the air, so the engine temp will be higher.

jal-SD · Oct 1, 2021

Thermo-syphon system or does it have a pressure system? Hot air circulating through the radiator no matter what type you have for cooling system is not as effective as cooler air. An old mechanic told me many years ago that I-H didn't install a heat guage on early tractors with thermo-syphon systems because the engineers didn't want you to know how hot the motor was running.

shaun wallace · Oct 1, 2021

Thinkin its a 401B. It could run up there in them conditions and not hurt it. May have 180 stat in it so 190+ could be possible.

coonie minnie · Oct 1, 2021

If it's a 401B, radiator capacity isn't all that great. Add some dirt or lime, and it will run warm on a warm day.

SVcummins · Oct 1, 2021

Time to wash the radiator fins out

rustred · Oct 1, 2021

Pretty much a normal situation , 90 degree air is not going to cool the engine efficiently compared to 60 degree weather. Same thing with my truck pulling a trailer in 90 degrees. It will run hotter than on a cool day.

Blackhole49 · Oct 2, 2021

Ditto. My 08 Silverado runs at 210, Doesn't matter whether it is 0 or 100 out and whether I'm going 25 or 75, gauge doesn't move.

Texasmark · Oct 2, 2021

Mine too, only 2011.

Texasmark · Oct 2, 2021

But there is a difference in that 2 thermostatically controlled, electric fans pull air through the radiator, condenser coil, and tranny fluid cooler when the engine requires their assistance, vs a belt driven fan.

Besides washing the fins mentioned, check your fan belt. It needs to be tightened to spec to pull the required air.

TomA in CA · Oct 2, 2021

I was having that problem with my Chinese tractor. It has a good guard, screen in front of radiator but had puked some coolant at times. I found the radiator still had a lot of dust on fins. Hard to get cleaned properly. Now clean, no problem.

SVcummins · Oct 2, 2021

When mine start running warm they usually need a good radiator wash out

My JD tractor temperature

37 chief

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Jim.ME

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jal-SD

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shaun wallace

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coonie minnie

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SVcummins

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rustred

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Blackhole49

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Texasmark

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Texasmark

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TomA in CA

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SVcummins

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