Show dirty cooling system causes hot motors does the motor of your tractor overheat if it does G W mccuen farm engineer ohio state university suggests checking to see if the fan belt is too loose if there is an accumulation of dirt on the outside of the cooling fins of the radiator if the tubes in the radiator are clogged or if the water jacket of the cylinders is badly limed if the tubes of the radiator are partially clogged with slime mccuen advises this may be cleaned out by filling the cooling system with a caustic solution such as half a can of lye in four to five gallons of water or one pound of sal soda to four or five gallons of water A safe way is to heat the solution t on and stir it then put the solution in the radiator cooling system and thoroughly heat it up by running the motor this generally takes about 15 minutes after which the solution may be drained and the cooling system thoroughly flushed out before refilling with water |