Allis Engine overheats what is wrong?

Tractor engine overheats  top hose wasnt warm so I replaced the therastat and now the hose is still not warm/ hor but I can feel water in it. The hose coming from the pump to the therm housing is hot . Could it be water pump is not working anymore? or something else. I drained coolant it seemed fine but a little dirty. Do i take out thermastat and see if it helps at least to see if it will circulate or take off water pump?

How do you know it is over heating? Do you have coolant overflowing?  It is normal for a freshly filled system to burp , it needs to find its " happy place" and as long as coolant level is above the tubes in the radiators header , your good.  An infrared thermometer will tell exactly what temp you have  whereever you point the laser beam, buy or borrow one . Don't expect your engine to run properly below 180*,and it won't reach that temp without a thermostat. Don't run a pressure cap of greater than 4lbs Most allis tractors will perform perfectly without the cooling system being pressureized   Over pressureizing the system will lead to a leaky radiator eventualy .Did you install your new thermostat in the proper orientation?. Check your fan belt for proper tension and are you sure that the impeller IS turning and not spinning on the shaft or that the fins on the pump impeller are not rusted/ eroded away ?   Unless your rad is plugged , I doubt it is overheating,   Tell us more specifics.   Hope this helps , Gary

The most common heating problem is called "all of the above".  Often when you fix one thing, it just shows up another.  Has to do with age.  you should flush the Radiator whether it needs it or not.  When I drained the coolant on a D-12 I had just bought, I found 12 hickory nuts in the bottom hose.  Guy I got it from said it always ran hot and that was just its nature.  With out the nuts, it ran fine.

I was thinking about taking the water pump off first and checking that out, I installed a new themastat in the proper direction and place, but also thought about taking it out and running it just to see if things circulate , My temp gage shows the heat creeping up to 230 then 240 and then I shut it off it doesnt overheat when idleing only when driving. As far as flushing rad I thought about that already today.thanks

Dave, I gotta ask , how the devil did kickory nuts get into a rad hose ????

Were you the guy a few days ago that couldn't get a tractor running? Timing was off?Anyhow,if you have retarded timing it will run hot and sound labored...and the cooling system won't fix it.

boscoe wrote: I was thinking about taking the water pump off first and checking that out, I installed a new themastat in the proper direction and place, but also thought about taking it out and running it just to see if things circulate , My temp gage shows the heat creeping up to 230 then 240 and then I shut it off it doesnt overheat when idleing only when driving. As far as flushing rad I thought about that already today.thanks

I have a D14 that always ran hot, the radiator was full of pecans.  I think I counted 39 that came out when I took it off the tractor and shook it and back flushed it.  That tractor also had trouble with the carb, and when I took it apart, it had sucked a pecan out of the air cleaner and was lodged in the choke body.  Dont remember how many I found in the air cleaner.  Tricky things like that arent in the "how to" manuals most times.  Sometimes the gauge can go bad also, never hurts to check.

You know, we had a B one time running hot.  Worked on a golf course.  Radiator had a leak and from time to time they were filling the radiator with creek water.  Creek water has mud in it.  Come to find out that the block was clogged with mud.  Cleaned it out and ran fine.

Hey Brian,  where would I get an "Air Lift"???