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Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Manual Transaxle & Differential (TY85) (STI)) >> Drive Pinion Shaft Assembly >> Inspection

Drive Pinion Shaft Assembly: Inspection

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  1. Using a spring scale, measure the starting torque. If the starting torque is outside the specification range, replace the double taper roller bearing.

    Starting torque: 

    0 - 0.95 N (0 - 0.097 kgf, 0 - 0.21 lbf) 

    Fig 1: Measuring Starting Torque
    G05003488Courtesy of SUBARU OF AMERICA, INC.
  2. Gear

    Replace gears in the following cases.

    • The gear teeth surface is damaged or excessively worn.
  3. Bearing

    Replace the bearings in the following cases.

    • Wear, rusting or damage of the bearings
    • The bearing does not rotate smoothly or an abnormal noise is emitted when turning.
  4. Adapter plate

    Replace the adapter plate in the following cases:

    • Wear, rusting or damage of the bearings
    • Damage of the adapter plate
  5. Check that the pipes and pipe chambers are not damaged or clogged. Repair or replace if damaged or clogged.