Mainshaft Assembly Clearance Inspection

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

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

Support the bearing inner race with a socket (A), and push down on the mainshaft (B).
Measure the clearance between 2nd (C) and 3rd (D) gears with a feeler gauge (E).
- If the clearance exceeds the service limit, go to step 3.
  
  Fig 1: Measuring Clearance Between 2nd & 3rd Gears With Feeler Gauge
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
- If the clearance is within the service limit, go to step 4.
  Standard: 0.06-0.21 mm (0.002-0.008 in.)
  
  Service Limit: 0.33 mm (0.013 in.)
Measure the thickness of 3rd gear.
- If the thickness is less than the service limit, replace 3rd gear.
- If the thickness is within the service limit, replace the 3rd/4th synchro hub and the 3rd/4th synchro sleeve as a set.
  Standard: 27.92-27.97 mm (1.099-1.101 in.)
  
  Service Limit: 27.85 mm (1.096 in.)
  
  Fig 2: Identifying 3rd Gear Dimension
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the clearance between 4th gear (A) and the 4th/5th gear distance collar (B) with a dial indicator (C).
- If the clearance exceeds the service limit, go to step 5.
- If the clearance is within the service limit, go to step 7.
  Standard: 0.06-0.19 mm (0.002-0.007 in.)
  
  Service Limit: 0.31 mm (0.012 in.)
  
  Fig 3: Measuring Clearance Between 4th Gear & 4th/5th Gear Distance Collar With Dial Indicator
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure distance (1) of the 4th/5th gear distance collar as shown below.
- If the length (1) is not within the standard, replace the 4th/5th gear distance collar.
- If the length (1) is within the standard, go to step 6.
  Standard: 24.03-24.06 mm (0.946-0.947 in.)
  
  Fig 4: Identifying Length Of 4th/5th Gear Distance
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the thickness of 4th gear.
- If the thickness is less than the service limit, replace 4th gear.
- If the thickness is within the service limit, replace the 3rd/4th synchro hub and the 3rd/4th synchro sleeve as a set.
  Standard: 27.02-27.07 mm (1.064-1.066 in.)
  
  Service Limit: 26.65 mm (1.049 in.)
  
  Fig 5: Identifying 4th Gear Dimension
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the clearance between the 4th/5th gear distance collar (A) and 5th gear (B) with a dial indicator (C).
- If the clearance exceeds the service limit, go to step 8.
- If the clearance is within the service limit, go to step 10.
  Standard: 0.06-0.19 mm (0.002-0.007 in.)
  
  Service Limit: 0.31 mm (0.012 in.)
  
  Fig 6: Measuring Clearance Between 4th/5th Gear Distance Collar & 5th Gear With Dial Indicator
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the length (2) of the 4th/5th gear distance collar as shown below.
- If the length (2) is not within the standard, replace the 4th/5th gear distance collar.
- If the length (2) is within the standard, go to step 9.
  Standard: 24.03-24.06 mm (0.946-0.947 in.)
  
  Fig 7: Identifying Length Of 4th/5th Gear Distance
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the thickness of 5th gear.
- If the thickness is less than the service limit, replace 5th gear.
- If the thickness is within the service limit, replace the 5th synchro hub and the 5th synchro sleeve as a set.
  Standard: 28.92-28.97 mm (1.139-1.141 in.)
  
  Service Limit: 28.85 mm (1.136 in.)
  
  Fig 8: Identifying 5th Gear Dimension
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the length of the MBS distance collar. If the length is not within standard, replace the MBS distance collar.
Standard: 12.00-12.05 mm (0.472-0.474 in.)

Fig 9: Identifying Length Of MBS Distance Collar
Courtesy of AMERICAN HONDA MOTOR CO., INC.