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Home >> Mazda >> 2012 >> 5 Sport, Standard Trans >> Repair and Diagnosis (Single Page) >> Transmission >> Manual Trans >> Manual Transaxle - Overhaul [G66M-R) >> Primary Shaft Components Assembly >> 4th Synchronizer Ring, 4th Gear, and Bearing (4th Gear End) Assembly Note
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4th Synchronizer Ring, 4th Gear, and Bearing (4th Gear End) Assembly Note

  1. Install the 4th synchronizer ring, double cone, inner cone, 4th gear, and a new bearing using the SST  .
    Fig 1: Installing 4th Synchronizer Ring, Double Cone, Inner Cone, 4th Gear And Bearing Using SST
    G08803706
  2. Measure the clearance between the 3rd gear and 2nd gear.
    • If it exceeds the maximum specification, reassemble the primary shaft component.

    3rd gear thrust clearance 

    Standard: 0.05-0.20 mm {0.002-0.007 in} 

    Maximum: 0.25 mm {0.010 in} 

    Fig 2: Measuring Clearance Between 3rd Gear And 2nd Gear
    G08803707
  3. Measure the clearance between the 4th gear and bearing.
    • If it exceeds the maximum clearance, reassemble the primary shaft component.

    4th gear thrust clearance 

    Standard: 0.17-0.37 mm {0.007-0.014 in} 

    Maximum: 0.42 mm {0.017 in} 

    Fig 3: Measuring Clearance Between 4th Gear And Bearing
    G08803708