Posted 5/14/2022 08:55 (#9659954 - in reply to #9659859) Subject: RE: Caseih 305 overheating
How about getting a $20 infrared thermometer, and taking the temp of the thermostat outlet going to the radiator, and the water pump inlet coming back from the radiator, when it's up to 220. Then we can make better guesses.
In the real old days when gramps used ditch water in the Ford, radiators would plug up inside with hard water scale. Newer stuff shouldn't be plugged inside unless you've really screwed up the coolant, or had an oil contamination incident.
In my day, 99% of overheating on ag and construction was radiators plugged with dirt and chaff, doesn't matter how much somebody protests they cleaned it, unless they took it out and looked from both sides, IT'S NOT CLEAN.
That was the good ole days, now everybody has to save energy with hydraulic fan drives or clutches, so fan speed is probably number one to confirm. Problem with the thermometer is both the slow fan and dirt plugged radiator show the same thing with a thermometer, but you can check air temp in and out also, just harder to judge what that means.