• | Gasket and hose sealing surfaces for above acceptable scratches or gouging. |
• | Restrictions within the internal coolant passages. |
• | Above acceptable side-to-side play in the pulley shaft. |
• | Leakage at the water outlet housing or rear cover gasket. |
• | Leakage at the water pump vent hole. |
• | A stain around the vent hole is acceptable. If leakage, dripping, occurs with the engine running and the cooling system pressurized, replace the water pump. |
• | Wear or damage in the belt tracking area of the pulley. |