Before Assembly

THE FOLLOWING WORK MUST BE CARRIED OUT BEFORE ASSEMBLING THE GEARBOX.

TO ADJUST THE DIFFERENTIAL SUPPORT BEARINGS.
1. Unless the support bearings have been changed, fit the differential together with the existing shims.
2. Fit the right-hand bearing housing without the universal Joint driver. (For particulars of removing the universal joint driver, refer to "Inner Universal Joint Driver With Differential Bearing Housings" under the heading Differential, Manual Transaxle/Service and Repair.) Service and Repair





3. Use drift 87 90 818 and a torque spanner to measure the roiling resistance (see figure). With new, lightly oiled bearings, the torque should be 1.8-2.8 Nm (1.3-2.1 lbf.ft.), and with bearings that have run more than 2,000 km (1,200 miles), it should be 0.8-1.3 Nm (0.59-0.95 lbf.ft.).
4. If the actual torque is outside the above ranges, the combination of shims must be altered. The table below gives particulars of the shims available.

Location Shims
Thickness, mm (in) Part No.
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Between diffe- 0,10 (0.004) 83 41 604
rential bearing 0,15 (0.006) 83 41 612
housing and 0,30 (0.012) 83 41 620
gearcase. 0,50 (0.020) 83 41 638
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5. Remove the bearing housings and differential. Fit the universal joint driver.