Cleaning Procedure
Caution:Do not immerse the water pump in solvent. The solvent mayenter the water pump's permanently lubricated bearings and causepremature bearing failure.
Remove the old gasket material from the water pump sealingsurfaces.Clean all excess dirt and debris from the water pumphousing.Inspection ProcedureRotate the water pump hub-(1). The water pump huband impeller should turn straight and smoothly. If the hub wobbles,is noisy, or feels rough when rotated, replace the waterpump.Inspect the exterior of the water pump for thefollowing:Damage to the water pump hub bolt threads-(2) forthe water pump pulleyDamage to the water pump bolt holes-(3)
Examine the water pump shaft-(1) and the weep holereservoir-(2) in the water pump body for signs ofleakage. If coolant leakage is evident, replace the waterpump.
Inspect the interior of the water pump for thefollowing:Damage to the water pump gasket sealingsurface-(1)Damage, corrosion or restrictions to the water pumpimpeller-(2)Damage, corrosion or restrictions to the coolantpassages-(3)Repair or replace the water pump as necessary.
Case - Torque Converter and Differential Housing Side Automatic Transmission Unit
Case-–-Torque Converter andDifferential Housing Side(2)Line(7)Cooler Feed(8)Lube(9)Regulated Apply(10)Exhaust Backfill(12)PCS Line(21)35 Reverse Clutch(32)26 Clutch(33)456 Clutch(34)PCS TCC(38)Seal Drainback(39)Vent ...