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Home › Honda › 2009 › Element SC, Standard › Repair and Diagnosis › Transmission › Manual Trans › Manual Transmission › Mainshaft Assembly Clearance Inspection

Mainshaft Assembly Clearance Inspection

NOTE: If replacement is required, always replace the synchro sleeve and synchro hub as a set.
  1. Support the bearing inner race with an appropriate sized socket (A), and push down on the mainshaft (B).
    Fig 1: Measuring Clearance Between 2nd Gear & 3rd Gear With Feeler Gauge
    G05449444Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Measure the clearance between 2nd gear (C) and 3rd gear (D) with a feeler gauge (E).
    • If the clearance is more than the service limit, go to step  3.
    • If the clearance is within the service limit, go to step  4.

    Standard: 0.06-0.16 mm (0.002-0.006 in.) 

    Service Limit: 0.25 mm (0.010 in.) 

  3. 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 3rd/4th synchro sleeve as a set.

    Standard: 23.92-23.97 mm (0.941-0.944 in.) 

    Service Limit: 23.80 mm (0.937 in.) 

    Fig 2: Identifying Thickness Of 3rd Gear
    G05449445Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Measure the clearance between 4th gear (A) and the distance collar (B) with a dial indicator (C).
    • If the clearance is more than the service limit, go to step  5.
    • If the clearance is within the service limit, go to step  7.

    Standard: 0.06-0.16 mm (0.002-0.006 in.) 

    Service Limit: 0.25 mm (0.010 in.) 

    Fig 3: Measuring Clearance Between 4th Gear & Distance Collar With Dial Indicator
    G05449446Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Measure the length (1) of the 4th/5th distance collar as shown below.
    • If the length (1) is not within the standard, replace the 4th/5th distance collar.
    • If the length (1) is within the standard, go to step  6.

    Standard: 24.03-24.08 mm (0.946-0.948 in.) 

    Fig 4: Identifying Length Of 4th/5th Distance Collar
    G00487437Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. 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 3rd/4th synchro sleeve as a set.

    Standard: 23.92-23.97 mm (0.941-0.944 in.) 

    Service Limit: 23.80 mm (0.937 in.) 

    Fig 5: Identifying Thickness Of 4th Gear
    G05449448Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Measure the clearance between the 4th/5th grar distance collar (A) and 5th gear (B) with a dial indicator (C). If the clearance is more than the service limit, go to step  8.

    Standard: 0.06-0.16 mm (0.002-0.006 in.) 

    Service Limit: 0.25 mm (0.010 in.) 

    Fig 6: Measuring Clearance Between Distance Collar & 4th/5th Gear With Dial Indicator
    G05449449Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. 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: 24.03-24.08 mm (0.946-0.948 in.) 

    Fig 7: Measuring Length Of 4th/5th Gear Distance Collar
    G05449450Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. 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 5th synchro sleeve as a set.

    Standard: 23.92-23.97 mm (0.941-0.944 in.) 

    Service Limit: 23.80 mm (0.937 in.) 

    Fig 8: Measuring Thickness Of 5th Gear
    G05449451Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Measure the length of the MBS distance collar as shown below. If the length is not within standard, replace the MBS distance collar.

    Standard: 23.95-24.05 mm (0.943-0.947 in.) 

    Fig 9: Measuring Length Of MBS Distance Collar
    G00487439Courtesy of AMERICAN HONDA MOTOR CO., INC.
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