Vanden Plas L6-4.0L (1990)
Harmonic Balancer - Crankshaft Pulley: Customer Interest
Engine - Knock Noise
CRANKSHAFT PULLEY BOLT
SECTION:
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
