I have an L3901 tractor. Diesel overheats. How to solve it?
Lack of refrigerant in the cooling system – Fill the cooling system to the proper level. Worn connecting rod or crankshaft bearings. Corroded refrigerant flow path. Engine overloaded. Adjust the gear. Excessive motor load. Excessive load – Reduce load or speed. Broken or out of adjustment fan belt – Adjust or replace.