Vanden Plas L6-4.0L (1990)
Water Pump: Technical Service Bulletins
Water Pump - Coolant Leakage
SECTION:
26
WATER PUMP-COOLANT LEAKS No: 4
Model:
SEDANS Date: MARCH, 1990
KEYPOINTS:
HOSE CLAMP TIGHTENING
Coolant along the lower edge of the water pump may be due to leakage from coolant hose connections.
Be sure to inspect the coolant hose connections, especially at the water pump, cylinder head transfer pipe and thermostat housing, for proper hose clamp
torque.
NOTE:
A trace of coolant around the water pump vent holes is the normal result of "venting" and does not indicate a leaking pump seal.
Coolant Hose Clamp Torque
Hose Clamps with 6 mm hex screw heads: 21 in.lbs. Hose Clamps with 8 mm hex screw heads: 36 in.lbs.
