Can’t figure out why this machine is still overheating. I have changed thermostat, water, pump, impeller, fan temperature sensor, pulled the radiator and flushed, change the plastic that the radiator hoses hooked to with new radiator cap. Jacked the front up while filling radiator to push out air. Removed thermostat housing, and filled motor with antifreeze to eliminate air pockets. checked both radiator hoses to make sure they weren’t collapsed. The fan kicks on after a few minutes of riding as it should.

 

Is the black plastic "screen" still in front of the radiator?
Is held in place at the sides of the rad with 2 heavy black rubber bands.

If so, remove it..Ya dont need it. It fixed my old one and mine was doing everything right too.

If it is not there any longer and is overheating then i got nothing.

 

Did you get all the air out of the system?

 

I did make sure the air is out of the system. Lifted the front up while filling the radiator, squeezed the hoses and keep reviving the motor so it would circulate. It does have the plastic screen still in front of the radiator. I will try removing it and see how that works. Thanks for your help!

 

Also, as the machine is pretty old, just because the fan kicks on and off does not mean it is moving the needed quantity of air. I have changed out ATV fans that seem great but when you pull them out the bearings are shot, it moves not freely, etc. they live in a harsh environment for sure and 20 years of that takes its toll.

just another thing to consider..the fan could be worn out.

I added a link below..not terrible price to replace a known old fan.

 

Fan turns freely and seems to move a lot of air. That will be on the list to try also. Thanks