Mainshaft Thrust Clearance Adjustment
WARNING: This page is about a different variant/trim than selected.
Special Tools Required
- Mainshaft Holder 07GAJ-PG20110
- Mainshaft Base 07GAJ-PG20130
- Remove the 72 mm shim (A) and oil guide plate M from the transmission housing (B).
- Thoroughly clean the 28 mm spring washer (A) and the 28 mm washer (B) before installing them on the clutch housing side ball bearing (C).NOTE: Be sure to install the spring washer in the direction shown.
- Assemble all of the mainshaft components.NOTE: Refer to the Exploded View, as needed, during the assembly (see MAINSHAFT REASSEMBLY ).
- Install the mainshaft assembly into the clutch housing.
- Place the transmission housing over the mainshaft and onto the clutch housing.
- Tighten the clutch and transmission housings with several 8 mm bolts.NOTE: It is not necessary to use sealing agent between the housings for this procedure.
- Lightly tap on the mainshaft with a soft face hammer.
- Attach the mainshaft holder (A) and the mainshaft base (B) to the mainshaft as follows:
- Back out the mainshaft holder bolt (C), and loosen the two hex bolts (D).
- Fit the mainshaft holder over the mainshaft so its lip is towards the transmission.
- Align the mainshaft holder lip around the groove at the inside of the mainshaft splines, then tighten the hex bolts.
- Fully seat the mainshaft by tapping its end with a soft face hammer.
- Thread the mainshaft holder bolt in until it just contacts the wide surface of the mainshaft adapter.
- Zero a dial gauge (A) on the end of the mainshaft.
- Turn the mainshaft holder bolt (B) clockwise; stop turning when the dial gauge has reached its maximum movement. The reading on the dial gauge is the amount of mainshaft thrust clearance.NOTE: Do not turn the mainshaft holder bolt more than 60 degrees after the needle of the dial gauge stops moving. Applying more pressure with the mainshaft holder bolt could damage the transmission.
- If the reading is within the standard, the clearance is correct. If the reading is not within the standard, select the appropriate shim needed from the table, and recheck the thrust clearance.
Standard: 0.11-0.17 mm (0.0043-0.0067 in)
(Example) Measure reading: 1.93 mm (0.0760 in)
Subtract the total clearance measurement from the middle of the clearance standard 0.14 mm (0.0055 in).
1.93- 0.14 mm (0.0760-0.0055 in) = 1.79 mm (0.0705 in)
Select the shim closest to the amount calculated, for example the 1.80 mm (0.071 in) shim.
- With oil guide plate M and the appropriate size shim installed in the transmission housing, check the thrust clearance again to verify the clearance is within the standard.
72 MM SHIM THICKNESS CHART
| Type | Thickness |
|---|---|
| A | 0.60 mm (0.024 in) |
| B | 0.63 mm (0.025 in) |
| C | 0.66 mm (0.026 in) |
| D | 0.69 mm (0.027 in) |
| E | 0.72 mm (0.028 in) |
| F | 0.75 mm (0.030 in) |
| G | 0.78 mm (0.031 in) |
| H | 0.81 mm (0.032 in) |
| I | 0.84 mm (0.033 in) |
| J | 0.87 mm (0.034 in) |
| K | 0.90 mm (0.035 in) |
| L | 0.93 mm (0.037 in) |
| M | 0.96 mm (0.038 in) |
| N | 0.99 mm (0.039 in) |
| O | 1.02 mm (0.040 in) |
| P | 1.05 mm (0.041 in) |
| Q | 1.08 mm (0.043 in) |
| R | 1.11 mm (0.044 in) |
| S | 1.14 mm (0.045 in) |
| T | 1.17 mm (0.046 in) |
| U | 1.20 mm (0.047 in) |
| V | 1.23 mm (0.048 in) |
| w | 1.26 mm (0.050 in) |
| X | 1.29 mm (0.051 in) |
| Y | 1.32 mm (0.052 in) |
| z | 1.35 mm (0.053 in) |
72 MM SHIM THICKNESS CHART
| Type | Thickness |
|---|---|
| AA | 1.38 mm (0.054 in) |
| AB | 1.41 mm (0.056 in) |
| AC | 1.44 mm (0.057 in) |
| AD | 1.47 mm (0.058 in) |
| AE | 1.50 mm (0.059 in) |
| AF | 1.53 mm (0.060 in) |
| AG | 1.56 mm (0.061 in) |
| AH | 1.59 mm (0.063 in) |
| Al | 1.62 mm (0.064 in) |
| AJ | 1.65 mm (0.065 in) |
| AK | 1.68 mm (0.066 in) |
| AL | 1.71 mm (0.067 in) |
| AM | 1.74 mm (0.069 in) |
| AN | 1.77 mm (0.070 in) |
| AO | 1.80 mm (0.071 in) |
| AP | 1.83 mm (0.072 in) |
| AQ | 1.86 mm (0.073 in) |
| AR | 1.89 mm (0.074 in) |
| AS | 1.92 mm (0.076 in) |
| AT | 1.95 mm (0.077 in) |
| AV | 1.98 mm (0.078 in) |
| AW | 2.01 mm (0.079 in) |
| AX | 2.04 mm (0.080 in) |
| AY | 2.07 mm (0.081 in) |
| AZ | 2.10 mm (0.083 in) |
| BA | 2.13 mm (0.084 in) |
| BB | 2.16 mm (0.085 in) |
| BC | 2.19 mm (0.086 in) |
| BD | 2.22 mm (0.087 in) |
| BE | 2.25 mm (0.089 in) |