Clearance Inspection

NOTE: If replacement is required, always replace the synchro sleeve and hub as a set.




1. Support the bearing inner race with a socket and push down on the mainshaft.
2. Measure the clearance between 2nd and 3rd gears.




3. If the clearance exceeds the service limit, measure the thickness of 3rd gear.
- If the thickness of 3rd gear is less than the service limit, replace 3rd gear with a new one.
- If the thickness of 3rd gear is within the service limit, replace the 3rd/4th synchro hub with a new one.




4. Measure the clearance between 4th gear and the spacer collar.




5. If the clearance exceeds the service limit, measure distance (A) on the spacer collar.




6. If distance (A) is less than the service limit, replace the spacer collar with a new one.
- If distance (A) is within the service limit, measure the thickness of 4th gear.
- If the thickness of 4th gear is less than the service limit, replace 4th gear with a new one.
- If the thickness of 4th gear is within the service limit, replace the 3rd/4th synchro hub with a new one.




7. Measure the clearance between the spacer collar and 5th gear.




8. If the clearance exceeds the service limit, measure distance (B) on the spacer collar.




9. If distance (B) is less than service limit, replace the spacer collar with a new one.
- If distance (B) is within the service limit, measure thickness of 5th gear.
- If the thickness of 5th gear is less than the service limit, replace 5th gear with a new one.
- If the thickness of 5th gear is within the service limit, replace the 5th synchro hub with a new one.