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Home >> Chevrolet >> 2004 >> Optra Base, Standard >> Repair and Diagnosis >> Steering >> Power Steering System >> Repair Instructions >> Valve and Pinion Assembly Disassemble >> Assembly Procedure
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Assembly Procedure

    Fig 1: View Of Lower Pinion Valve Seal, Bushing And Dust Cover
    GM1290237Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Coat all the seals and bushings with power steering fluid to ensure proper sealing.
  1. Install the bushing and a new lower pinion valve seal.
  2. Fig 2: Identifying Stub Shaft Components
    GM1290229Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: When the valve and pinion assembly is fully seated in the housing, be sure the notch in the stub shaft and the mark on the housing line up. If this is not done the vehicle will not pass the straight-ahead check and will have poor steering performance.
  3. Install the valve and pinion assembly and the stub shaft dust seal.
  4. Fig 3: View Of Locknut Tightening Procedure
    GM1290253Courtesy of GENERAL MOTORS CORP.
    NOTE: If the stub shaft is not held, damage to the pinion teeth will occur.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. While holding the stub shaft, tighten the locknut onto the pinion shaft.

    Tighten:  Tighten the pinion locknut to 30 N.m (22 lb ft)  .

  6. Fig 4: View Of Housing Dust Cover
    GM1290198Courtesy of GENERAL MOTORS CORP.
  7. Replace the dust cover onto the housing.
  8. Install the rack and pinion steering assembly. Refer to Steering Gear Replacement .
  9. Perform the straight-ahead check. Refer Rack and Pinion Preload Bearing Adjustment .