case 2090 heating

tired1

Member
Hello. Recently acquired a case 2090. Have been trying to disk some very hard ground. Seems like the tractor
heats. It has not got into the "hot" area, but likes to stay in the upper part of "normal", I would rather see
it stay in the middle of the normal. I don't think i'm overloading it, pulling a 12 foot tandum disc. I do
need to add 1 to 2 quarts of water/antifreeze each morning, but I figured that was just what was coming out
of the rad when it warms up, maybe i'm wrong. Also seems the rad pressurized rather quickly. The tractors
I've been around usually didn't get that much pressure on them. One it gets warm, if you stop, and let it cool
down, it will cool off in 5 to 10 minutes.

where to start first on these tractors..i'll admit I know more about deere.
I suppose I should blow out the rad.....after that, what's next, thermostat ? hard to tell about the water pump, or do
the guage go out of them ? I've noticed that if I turn the switch off then on, it does a little dance, more
than what I would expect....it goes up a little, then down a little, then shakes a little.

any ideas would be welcome !!

thank you

(also thank you to the board keeper, i forgot "who i was", and my password, and he got me going, again, thank you !)
 
The radiator pressurizing quickly could be a sign of a leaking head gasket. Also the mystery coolant loss points to head gasket. The radiator won't stay full to the top without a recovery tank. About an inch below the top will leave room for expansion.

A minor gasket leak can be hard to diagnose. A few things to look for are water condensing under the valve cover, oil cap, dip stick. Engine misfire on cold start up. Steam out the exhaust even in warm weather.

A good test is to let it sit overnight with the cooling system pressured up, pull the plugs, crank it through and watch for coolant to blow out a spark plug hole. This test will only reveal a more serious leak, a minor leak may still be there, just hard to find.

A clogged radiator, either externally clogged, or internally, will show as overheating under a heavier load. So will a partially opening thermostat. Make sure the core is clear of grass or any obstruction. With the coolant full to above the core tubes, engine up to temp, throttle set high, the air coming through the radiator should be warm. Feel the front of the rad, the top should be warmer than the bottom, and the temperature consistent side to side. If there are cold spots, the core is clogged internally. If the air coming through is cold, there is poor circulation, bad thermostat or clogged core. It is extremely rare for a water pump to fail to pump. Leak, rattle, lock up, break off, yes, but quit pumping, very rarely happens.
 

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