HEAD 7J3332 - Caterpillar

A failed water pump may cause severe engine overheating problems that could result in the following conditions:
Cracks in the cylinder head
A piston seizure
Other potential damage to the engine
Illustration 1 g01904773
(A) Weep hole
(B) Vent hole Note: The water pump seals are lubricated by the coolant in the cooling system. It is normal for a small amount of leakage to occur. Refer to illustration 1 for the position of the weep hole and the vent hole. Visually inspect the water pump for leaks. Note: If engine coolant enters the engine lubricating system the lubricating oil and the engine oil filter must be replaced. This will remove any contamination that is caused by the coolant and this will prevent any irregular oil samples.The water pump is not a serviceable item. In order to install a new water pump, refer to the Disassembly and Assembly Manual, "Water Pump - Remove and Install".