Combines Radiator plugging in yellow top 7720

[Roger]

I just had my radiator out last fall to get a leak fixed, I have never had trouble keeping my 7720 cool. Are your radiator cores staying dry on the outsideIJ If they are damp from a leak dust will stick like glue. I have had a few spots plug, but not a majority of the radiator and mine is the staggered tube type, I never saw one that was inline. The radiator man said that mine was plugged on each side about 3 inches in from the edges and the cooling was being done down through the middle of the core. The only time I ever had mine get warm was last fall, I forgot to swing the lever back in place at the bottom of the rotary screen after I shut the door, the screen was covered with trash, after I flipped the lever around I could almost watch the temp gauge fall and haven't had trouble since

 

[Joe]

Pull it out and have it gone through at a radiator shop. I bet your core is plugged up and a trip to the cooker is in order. A good clean core should keep the motor cool for years with a daily blow with the air hose.

 

[VAfarmboy]

We had the same problem on one our combines. The radiator core was rotten and had some slow leaks that made it collect soybean dust. We put a new radiator in it and the temp gauge stays rith where it is supposed to.