Posted on November 10, 2020 C7 Industrial Engine Operation and Maintenance Manual – Water Pump – Inspect A failed water pump might 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 A failed water pump might cause severe engine overheating problems. Overheating could result in cracks in the cylinder head, a piston seizure, or other potential damage to the engine. Visually inspect the water pump for leaks. If leaking of the water pump seals is observed, replace all of the water pump seals. Refer to two articles in the Disassembly and Assembly Manual, “Water Pump – Disassemble and Water Pump – Assemble” for the disassembly and assembly procedure. If necessary to remove the water pump, refer to two articles in the Disassembly and Assembly Manual, “Water Pump – Remove and Water Pump – Install”. Inspect the water pump for wear, cracks, pin holes, and proper operation. Refer to the Parts Manual for the correct part numbers for your engine or consult your Cat dealer if repair is needed or replacement is needed.