>>D<< Drive Pinion Height Adjustment
WARNING: This page is about a different variant/trim than selected.
Adjust the drive pinion height by the following procedures:
- Apply multipurpose grease to the washer of special tool MB990836.CAUTION: There should be no gear oil adhered to the bearing.
- Install special tool MB990836, drive pinion front and rear bearing inner races to the differential carrier as shown in the illustration.
- Tighten the nut of special tool MB990836 a little at a time, while measuring the turning torque of the drive pinion by using special tools MB990326 and MB990685. Then confirm that the turning torque (without the drive pinion oil seal) is at the standard value.
Standard value:
TURNING TORQUE CHARTBearing type Bearing lubrication Turning torque New None (with anti-rust agent) 0.88 - 1.17 N.m (7.79 - 10.36 in-lb) Gear oil applied 0.39 - 0.49 N.m (3.45 - 4.34 in-lb) NOTE: Because special tool MB990326 cannot be turned one turn, turn it several times within the range that it can be turned; then, after fitting to the bearing, measure the turning torque. - Clean the side bearing seat of the differential carrier and bearing caps.
- Place special tools MB990392 and MB990836 in the side bearing seat of the differential carrier, and position the notch as shown in the illustration. Then install the bearing caps.
- Use a feeler gauge to measure the clearance (A) between special tools.
- Remove the bearing caps and special tools.
- Use a micrometer to measure the shown in illustration dimensions (B, C) of special tools.
- Install the bearing cap, and then use a cylinder gauge to measure the inside diameter (D) of the bearing cap.
- Calculate thickness (F) of the required drive pinion rear shim by the following formula. Select a shim which most closely matches this thickness.
F = A + B + C - 1/2D - 86.00 mm (3.386 inches)
- Fit the selected drive pinion rear shim(s) to the drive pinion, and press-fit the drive pinion rear bearing inner race by using special tool MB990728.