- Measure the clearance between the 25 x 31 mm thrust shim (A) and the snap ring (B) with a feeler gauge (C).
NOTE: Take measurements in at least 3 places and use the average as the actual clearance.
STANDARD: 0.05-0.115 mm (0.018-0.030 in.)
- If the clearance is out of standard, remove the 25 x 31 mm thrust shim (A) and measure its thickness.

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- Select and install the new thrust shim and secure them with the snap ring, then recheck.
THRUST SHIM, 25 x 31 mm
| No. |
Part Number |
Thickness |
| A |
90451-P4V-000 |
1.05 mm (0.041 in.) |
| B |
90452-P4V-000 |
1.12 mm (0.044 in.) |
| C |
90453-P4V-000 |
1.19 mm (0.047 in.) |
| D |
90454-P4V-000 |
1.26 mm (0.050 in.) |
| E |
90455-P4V-000 |
1.33 mm (0.052 in.) |
| F |
90456-P4V-000 |
1.40 mm (0.055 in.) |
| G |
90457-P4V-000 |
1.47 mm (0.058 in.) |
| H |
90458-P4V-000 |
1.54 mm (0.061 in.) |
| I |
90459-P4V-000 |
1.61 mm (0.063 in.) |
| J |
90460-P4V-000 |
1.68 mm (0.066 in.) |
| K |
90461-P4V-000 |
1.75 mm (0.069 in.) |
| L |
90462-P4V-000 |
1.82 mm (0.072 in.) |
| M |
90480-P4V-000 |
1.085 mm (0.0427 in.) |
| N |
90481-P4V-000 |
1.155 mm (0.0454 in.) |
| O |
90482-P4V-000 |
1.225 mm (0.0482 in.) |
| P |
90483-P4V-000 |
1.295 mm (0.0510 in.) |
| Q |
90484-P4V-000 |
1.365 mm (0.0537 in.) |
| R |
90485-P4V-000 |
1.435 mm (0.0565 in.) |
| S |
90486-P4V-000 |
1.505 mm (0.0593 in.) |
| T |
90487-P4V-000 |
1.575 mm (0.0620 in.) |
| U |
90488-P4V-000 |
1.645 mm (0.0648 in.) |
| V |
90489-P4V-000 |
1.715 mm (0.0675 in.) |
| W |
90490-P4V-000 |
1.785 mm (0.0703 in.) |
- After replacing the 25 x 31 mm thrust shim, make sure that the clearance is within tolerance.
- Verify that the snap ring outside diameter is 30.7 mm (1.21 in.) or less.
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