Engine - Knock Noise
90jaguar07 CRANKSHAFT PULLEY BOLTSECTION: 12
No: 19
Model: 90 MY SEDAN RANGE Date: MAY, 1990
KEYPOINTS: ENGINE KNOCK NOISE DUE TO LOOSE BOLT
An engine knock which may decrease as the engine reaches normal operating temperature can be caused by a loose crankshaft pulley center bolt.
If this condition occurs, the bolt must be re-torqued using the following procedure:
^ Disconnect battery.
^ Remove the nuts which mount the cooling fan assembly to the water pump.
NOTE: Observe the relationship of the water pump pulley to the fan drive unit fan for assembly purposes.
^ Remove the cooling fan assembly from the water pump studs and remove the cooling fan assembly mounting nuts.
^ Remove the cooling fan assembly from the water pump studs and position the assembly in the fan cowl.
^ Hold the crankshaft pulley with tool 18G1437 and adaptor ring 18G1437-1. Attach the tool to the crankshaft pulley threaded holes using two bolts, 8 x 60 x 1.25 mm.
^ Torgue the crankshaft pulley center bolt to 150 ft. lbs. (203.5 N-m).
WARRANTY INFORMATION:
Fault Code: 1CFA
Repair Operation Number: 12.91.06
Time Allowance: .50 hrs