Operation CHARM: Car repair manuals for everyone.

19. Bearing Preload

BEARING PRELOAD
Preparation





SST

Adjustment





1. Use the SSTs shown to measure and adjust the output gear bearing preload.





1. Align the bearing cover with guide bolts as shown.
2. Press the bearing cover in by using the SST.
3. Remove the guide bolts and install the bearing cover installation bolts.

Tightening torque: 10.8 - 13.7 Nm (110 - 140 kgf-cm, 96 - 121 inch lbs.)

4. Mount the converter housing onto the SST (transaxle hanger).
5. Remove the bearing race and adjustment shims from the bearing housing using a pin punch and hammer.





6. Set the output gear into the converter housing.





7. Install the bearing race removed in step 5 to the selector, and install the selector and bearing race to the output gear.





8. Turn the selector to eliminate the gap between its two halves.





9. Set the bearing housing on the SST (selector) and install the SST (bolts). Tighten the bolts to the specified torque.

Tightening torque: 28 - 34 Nm (2.79 - 3.5 kgf-m, 21 - 25 ft. lbs.)





10. Turn the SST (selector) to increase the clearance (arrow) with the SST (bars) until it no longer turns.
11. Turn the selector in the opposite direction until the preload is eliminated (gap is reduced).





12. Mount the SSTs and a pull scale or a torque wrench on the output gear.





13. Adjust the clearance of the SST (selector) to obtain the specified preload/pull scale reading.

Preload: 1.1 - 1.9 Nm (11 - 20 kgf-cm, 10 - 17 inch lbs.)
Reading on pull scale: 11 - 19 N (1.1 - 2.0 kgf, 2.5 - 4.4 lbf)






14. Measure the gap between A and B around the circumference of the SST (selector) by using a feeler gauge.








15. Take the maximum reading and determine the shim to be used. Use no more than one shim.
16. Remove the bearing housing and SST.





17. Install the required shim(s) and press the bearing race into the bearing housing by using the SST.
18. Install the bearing housing.

Tightening torque: 28 - 34 Nm (2.79 - 3.5 kgf.m, 21 - 25 ft. lbs.)





19. Check that the preload/pull scale reading is within the specification. If not, return to step (5).

Preload: 1.1 - 1.9 Nm (11 - 20 kgf-cm, 10 - 17 inch lbs.)
Reading on pull scale: 11 - 19 N (1.1 - 2.0 kgf, 2.5 - 4.4 lbf)


20. Remove the bearing housing and output gear assembly.





2. Use the SSTs shown to measure and adjust the differential side bearing preload.
1. Remove the bearing race and adjustment shims from the transaxle case.





2. Install the bearing race into the converter housing by using a suitable pipe.





3. Set the differential assembly into the converter housing.
4. Turn the selector to eliminate the gap indicated by the arrow.





5. Set the SST (collars) in the positions shown.





6. Install the SSTs as shown in the figure.





7. Tighten the SST (bolts) to the specified torque.

Tightening torque: 38 - 51 Nm (3.8 - 5.3 kgf.m, 28 - 38 ft. lbs.)





8. Turn the SST (selector) to increase the clearance (arrow) by using the SST (bars), until it no longer turns.
9. Turn the selector in the opposite direction until the preload is eliminated (gap is reduced).
10. Insert the SST (preload adaptor) through the oil seal hole of the transaxle case and attach it to the pinion shaft.
11. Mount the SST (preload attachment) and a pull scale or a torque wrench to the SST (preload adaptor).





12. Measure the bearing preload at the point the differential starts to turn.





13. Adjust the clearance of the SST (selector) to obtain the specified preload/pull scale reading.

Preload: 0.49 Nm (5.0 kgf-cm, 4.3 inch lbs.)
Reading on pull scale: 4.9 N (0.5 kgf, 1.1 lbf)






14. Measure the gap between A and B around the circumference of the SST (selector) by using a feeler gauge.





15. Select a maximum of three adjustment shims to equal the measurement clearance plus 0.3 mm (0.021 inch).
16. Remove the transaxle case and SST (selector).





17. Install the required shim(s) and tap the bearing race into the transaxle case.
18. Install the transaxle case.

Tightening torque: 38 - 51 Nm (3.8 - 5.3 kgf.m, 28 - 38 ft. lbs.)





19. Check that the preload is within specification. If not, return to step (1).

Preload: 3.0 - 3.9 Nm (30 - 40 kgf-cm, 27 - 34 inch lbs.)
Reading on pull scale: 30 - 39 N (3.0 - 4.0 kgf, 6.6 - 8.8 lbf)


20. Remove the transaxle case.