Caution: Wear safety glasses in order to avoid eye damage.
- Remove the
old gasket material from the water pump sealing surfaces.
- Clean all the dirt and any debris from the water pump.
- Inspect the water pump for the following:
• | Leakage or damage to the housing cover or gasket (1) |
• | Excessive scratches or gouging to the gasket sealing surfaces (2) |
• | Leakage from the water pump vent hole (3) |
• | A stain around the vent hole is acceptable. If leakage occurred (dripping)
with the engine operating and the cooling system pressurized, then replace
the water pump. |
• | Damaged bolt hole threads (4) |
• | Excessive side-to-side movement of the water pump shaft (5) |
• | Leakage around the water inlet pipe (6) |
• | Leakage around the heater hose pipe (7) |
• | Restrictions within the internal coolant passages |