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ADJUSTMENT

ADJUSTMENT

Thoroughly remove the liquid gasket from the case mating surface beforehand.

Install the oil pump housing assembly to the converter case, and secure evenly by tightening four bolts.

Note

Use an old gasket or an aluminum washer so as not to damage the mating surface of the housing.


Tightening torque:

41 Nm (4.2 kgf-m, 30.4 ft-lb)


Rotate the drive pinion several times with ST1 and ST2.

ST1 32005120 HOLDER

ST2 32005154 WRENCH


Adjust the backlash between drive pinion and hypoid driven gear.

Apply red lead evenly to the surfaces of three or four teeth of the hypoid driven gear. Rotate the drive pinion in the forward and reverse directions several times. Then remove the oil pump housing, and check the tooth contact pattern.

If tooth contact is improper, readjust the backlash or shim thickness.


• Tooth contact

Checking item:Tooth contact pattern is slightly shifted toward to toe side under no-load rotation. [When loaded, contact pattern moves toward heel.]


(A)

Toe side

(B)

Heel side



• Face contact

Checking item: Backlash is too large.

Contact pattern


Corrective action: Increase thickness of drive pinion height adjusting washer in order to bring drive pinion close to hypoid driven gear.


• Flank contact

Checking item: Backlash is too small.

Contact pattern


Corrective action: Reduce thickness of drive pinion height adjusting washer in order to move drive pinion away from hypoid driven gear.


• Toe contact (Inside end contact)

Checking item: Contact areas is small.

Contact pattern


Corrective action: Decrease thickness of drive pinion height adjusting washer in order to move drive pinion away from hypoid driven gear.


• Heel contact (Outside end contact)

Checking item: Contact areas is small.

Contact pattern


Corrective action: Increase thickness of drive pinion height adjusting washer in order to move drive pinion close to hypoid driven gear.



If tooth contact is correct, mark the retainer position and loosen it. After fitting a new O-ring and oil seal, screw in the retainer to the marked position. Then tighten the lock plate to the specified torque.

Tightening torque:

25 Nm (2.5 kgf-m, 18.1 ft-lb)


(A)

Lock plate