3000GT AWD V6-2972cc 3.0L DOHC Turbo (1991)
Drive/Propeller Shaft: Customer Interest
Drivetrain - Low Frequency Vibration, Hard Acceleration
NO.
TSB-90-25-001
DATE
January, 1991
MODEL
1991 3000GT VR4
SUBJECT:
VIBRATION ON ACCELERATION
PURPOSE
This bulletin describes the repair procedures necessary when you encounter a 3000GT VR4 manufactured before August 20, 1990, which exhibits a very
low frequency vibration or thumping in the floor pan area on hard acceleration in 1st and 2nd gear. To correct this condition the two 3.2 mm spacers
must be moved from the front center bearing support to the rear center bearing support.
PARTS INFORMATION
Self Locking nut:
MF445005 (4 required)
WARRANTY INFORMATION
Standard warranty procedures apply.
REPAIR PROCEDURE
1.
Loosen but do not remove the 2 self locking nuts from the rear center support.
2.
Support the propeller shaft. Remove and discard the 2 self locking nuts from the front center support. Remove both 3.2 mm spacers (above the
upper insulator). Reinstall the insulators and lower washer. Using new seff locking nuts, finger tighten the self locking nuts.
3.
Remove and discard the 2 self locking nuts from the rear center support. Carefully lower the propeller shaft. Place the 3.2 mm spacers (which
were removed from the front center support) above the existing spacers. Reinstall the insulators and lower washers. Using new self locking
nuts, finger tighten the nuts.
4.
Torque all 4 self locking nuts to 30 N-m (22 ft.lbs.).
