Shift Fork Clearance Inspection
NOTE:
If replacement is required, always replace the synchro sleeve and hub as a set.
- Measure the clearance between each shift fork (A) and its matching synchro sleeve (B). If the clearance exceeds the service limit, go to step 2.
Standard: 0.35-0.65 mm (0.014-0.026 in.)
Service Limit: 1.00 mm (0.039 in.)
- Measure the thickness of the shift fork fingers (A).
- If the thickness is less than the standard, replace the shift fork.
- If the thickness is within the standard, replace the synchro sleeve and hub.
- If one arm of the shift fork shows more wear than the others, the fork may be bent and needs to be replaced.
Standard:
1-2 Shift Fork: 7.4-7.6 mm (0.29-0.30 in.)
3-4,5-6, Reverse Shift Fork: 6.2-6.4 mm (0.24-0.25 in.)
- Measure the clearance between each shift fork, reverse shift piece, and shift arm A. If the clearance exceeds the service limit, go to step 4.
Standard: 0.2-0.6 mm (0.008-0.024 in.)
Service Limit: 0.7 mm (0.028 in.)
- Measure the width of shift arm A.
- If the width is less than the service limit, replace shift arm A.
- If the width is within the service limit, replace the shift fork or the reverse shift piece.
Standard: 16.8-17.0 mm (0.661-0.669 in.)
Service Limit: 16.7 mm (0.657 in.)
- Measure the clearance between the 1-2 shift lever and each shift fork and shift piece. If the clearance exceeds the service limit, go to step 6.
Standard: 0-0.4 mm (0-0.016 in.)
Service Limit: 0.5 mm (0.020 in.)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Measure the width of the 1-2 shift lever.
- If the width is less than the service limit, replace the 1-2 shift lever.
- If the width is within the service limit, replace the shift fork or shift piece.
Standard: 17.0-17.2 mm (0.669-0.677 in.)
Service Limit: 16.9 mm (0.665 in.)