12. COOLING SYSTEM PEOPLE 250 Water Pump Assembly Remove the water pump shaft outer bearing. Inner Bearing Water Pump Assembly MECHANICAL SEAL REPLACEMENT Drive the mechanical seal out of the water pump assembly from the inside. Mechanical Seal (Water Seal) Mechanical Seal Driver Drive in a new mechanical seal using a mechanical seal driver. Apply sealant to the right crankcase cover fitting surface of a new mechanical seal and then drive in the mechanical seal. 12-11