Adjustment Of Backlash; Thrust Washer Thickness; Adjustment Of Drive Pinion And Ring Gear Backlash - Mazda MX-5 1990 Workshop Manual

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DIFFERENTIAL

Adjustment of backlash

1. Check the backlash of the side gears and pinion gears.

Adjust by inserting the proper thickness thrust washer at

both sides. (Standard)

If not within specification, replace the differential gear as an

assembly. (Viscous L.S.D.)

Standard backlash: 0-0.1 mm (0-0.004 in)

Thrust washer thickness:

Identification mark

1.95-2.00mm (0.0768-0.0787 in)

2.05-2.10mm (0.0807-0.0827 in)

2.15-2.20mm (0.0846-0.0866 in)

2. Install the knock pin to secure the pinion shaft. Stake the

pin with a punch to prevent it from coming out of the case.

Adjustment of drive pinion and ring gear backlash

• Apply approx. 0.04 cc (0.0024 cu in) of thread-

locking compound at each point.

1. Apply thread-locking compound to the bolt threads @and

of the gear back face.

2. Install the ring gear onto the gear case.

Tightening torque:

69-83 N·m (7.0-8.5 m-kg, 51-61 ft-Ib)

3. Press the bearing inner races (side bearing) on with the SST.

4. Install the differential gear assembly in the carrier.

5. Note the identification marks on the adjusting nuts, and in-

stall them on their respective sides.

6. Install the differential bearing caps, making sure that the

identification mark on the cap corresponds with the one on

the carrier with the SST.

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