Q45t V8-4130cc 4.1L DOHC MFI (VH41) (1997)
Fan Blade: Service and Repair
*** This article has been updated by Technical Service Bulletin # 96-046, dated October, 23, 1996. ***
Fan Mounting Exploded View
Refer to the illustration for service information.
FAN INSTALLATION TO WATER PUMP FLANGE
UPDATED SERVICE INFORMATION
The fan mounting flange of the water pump may become loose on the shaft if the fan, fan coupling, or fan pulley (water pump pulley) are not properly
installed during a repair. The incident may be exhibited as a screeching noise from the engine when starting cold. When removing or installing the fan,
fan coupling or fan pulley, always perform the procedure listed below.
SERVICE PROCEDURE
1.
Turn the ignition switch to off.
2.
Loosen the alternator then remove the drive belt. Do not leave the drive belt in place and release the drive belt tension by removing the fan pulley.
(Releasing the drive belt tension by removing, the fan pulley may complicate component re-installation).
3.
Remove the fan, fan coupling, fan pulley and any other components required for the service you are performing.
Figure 1
4.
Inspect the fan coupling for wobbling (Figure 1), oil leakage or bent/broken bimetal before assembly.
5.
Carefully Install the fan, fan coupling and fan pulley. Torque the M6 x 0.8 nuts and screws securing the fan to the fan coupling and the fan
coupling to the water pump flange to 5.8 - 9.7 Nm (51.6 - 86.4 inch lbs.). Install the drive belt only after the fan and fan coupling to water pump
flange bolts/nuts have been properly torqued.
NOTE: Proper alignment of these components is essential. Improper alignment will cause them to wobble and may eventually cause the fan to
separate from the water pump causing extensive damage.