Pinion Gear: Adjustments

NOTE: Whenever the transaxle is disassembled, the bearing preload must be adjusted. The output gear bearing preload is adjusted by selective shims inserted under the bearing cup. To determine the correct thickness of the shim(s), use the appropriate shim selection set along with the following procedures.





1. Use (A) Valve Body Guide Pins T80L-77100-A to align the torque converter stator support. Use (B) Step Plate D80L-630-6 or equivalent to press the (C) torque converter stator support into the torque converter housing.





2. Install the torque converter stator support bolts.





3. Remove the bearing cup and adjustment shims from the bearing housing.
- Use a pin punch and hammer in the two housing cutouts and tap the bearing cup out.





4. Use (A) Bearing Cup Replacer T77F-1217-B to press the bearing cup into the (B) bearing housing.

NOTE: Do not reinstall the shims.

5. Install the output gear and the bearing cup into the converter housing.





6. Place four collars (part of T88C-77000-JF) on the (A) converter housing. Place Shim Selection Gauge T91P-77000-B on the (B) output gear. Be sure to turn the two halves of the gauge to eliminate any gap between them.





7. Place the bearing housing onto the collars, then install four collar bolts with washers. Tighten the collar bolts to the specified torque.





8. Place the (A) Preload Torque Adapter T9OP-77000-BH on the output gear.





9. Use the rods (part of T88C-77000-JF) to loosen the gauge halves until all of the free play is removed and the bearing cup is seated.





10. Attach a (A) torque wrench to the (B) Preload Torque Adapter T9OP-77000-BH. Measure the drag on the output gear bearing.

NOTE:
- The gear should be rotated several times before taking preload measurements.
- Read the preload when the output gear starts to turn.

11. Use the rods to turn the gauge to obtain the specified preload.
- Preload: 0.03-0.88 Nm (0.27-7.81 inch lbs.).





12. Use a feeler gauge to measure the gap between the two halves of the shim selection gauge. Measure the clearance around the entire circumference. Use the largest measurement.





13. Select the (A) shim(s) that is closest to the measured value of the gauge gap from the following chart.

NOTE: Use no more than seven shims.

Thickness of Shim
0.500 mm (0.020 inch)
0.525 mm (0.021 inch)
0.550 mm (0.022 inch)
0.575 mm (0.023 inch)
0.600 mm (0.024 inch)
0.625 mm (0.025 inch)
0.650 mm (0.026 inch)
0.675 mm (0.027 inch)
0.700 mm (0.028 inch)
0.725 mm (0.029 inch)
0.750 mm (0.030 inch)
0.775 mm (0.031 inch)
0.800 mm (0.031 inch)
0.825 mm (0.032 inch)
0.850 mm (0.033 inch)
0.875 mm (0,034 inch)
0.900 mm (0.035 inch)
0.925 mm (0.036 inch)
0.950 mm (0.037 inch)
0.975 mm (0.038 inch)
1.000 mm (0.039 inch)
1.025 mm (0.040 inch)
1.050 mm (0.041 inch)
1.075 mm (0.042 inch)
1.100 mm (0.043 inch)
1.125 mm (0.044 inch)
1.150 mm (0.045 inch)
1.175 mm (0.046 inch)
1.200 mm (0.047 inch)
1.225 mm (0.048 inch)
1.250 mm (0.049 inch)
1.275 mm (0.050 inch)
1.300 mm (0.051 inch)
1.325 mm (0.052 inch)
1.350 mm (0.053 inch)
1.375 mm (0.054 inch)
1.400 mm (0.055 inch)
1.425 mm (0.056 inch)
1.450 mm (0.057 inch)





14. Remove the bolts, washers, bearing housing, gauge, and bearing cup. Use (A) Bearing Cup Replacer T77F-1217-B to press the selected shim(s) and bearing cup into the (B) bearing housing.





15. Install the bearing housing and measure the bearing preload. If the preload measurement is not within specification, repeat the gauging process. When the proper preload specification has been obtained, remove the bearing housing.