M/T Shift Fork Clearance Inspection

NOTE: The synchro sleeve and synchro hub should be replaced as a set.

1.Measure the clearance between each shift fork (A) and its matching synchro sleeve (B). If the clearance exceeds the service limit, go to 2.

Standard: 0.35-0.65 mm (0.014-0.026 in.) 
Service Limit: 1.0 mm (0.039 in.) 

 

2.Measure the thickness of the shift fork fingers.

  • If the thickness is not within the standard, replace the shift fork.
  • If the thickness is within the standard, replace the synchro sleeve.

Standard: 
 1st/2nd shift fork: 6.7-6.9 mm
(0.26-0.27 in.) 
 3rd/4th, 5th/6th shift fork: 7.4-7.6 mm
(0.29-0.30 in.) 

 

3.Measure the clearance between the shift fork (A) and the shift piece (B). If the clearance exceeds the service limit, go to 4.

Standard: 0.2-0.5 mm (0.008-0.020 in.) 
Service Limit: 0.6 mm (0.023 in.) 

 

4.Measure the width of the shift piece.

  • If the width is not within the standard, replace the shift piece.
  • If the width is within the standard, replace the shift fork.

Standard: 15.9-16.0 mm (0.626-0.630 in.)