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Home >> Isuzu >> 1992 >> Trooper LS, Automatic >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - Power >> Overhaul >> Power Steering Gear >> Reassembly

Power Steering Gear: Reassembly

  1. If sector shaft bearing was removed, install NEW bearing flush with the recessed face of housing and with name of bearing facing out toward top cover.
  2. Install sector shaft seal ring and dust seal ring in housing. Apply light grease to lip of seals and "O" rings. Install valve housing "O" ring, piston "O" ring and piston seal ring carefully to prevent twisting.
  3. Install seal ring to rack piston by expanding it to fit over "O" ring. See Fig 1 . Apply a thin coat of white grease to entire circumference of seal ring.
    Fig 1: Installing Rack Piston Seals
    G50535Courtesy of ISUZU MOTOR CO.
  4. Insert ball screw and housing assembly into gear assembly, while keeping ball screw and housing assembly horizontal. Install valve housing retaining bolts and tighten to specifications. See TORQUE SPECIFICATIONS  table. Install NEW stub shaft oil seal into valve housing.
  5. Using Seal Driver (J-26508 ), install back-up ring, retaining ring and dust cover in reverse order of disassembly. Back-up ring and retaining ring should be installed so ring faces with rounded outer circumferences turn toward oil seal.
  6. Install hose fitting to valve housing with a NEW "O" ring. Tape sector shaft spline to protect bushing and seal rings. Install sector shaft while aligning sector teeth and rack teeth in straight-ahead position. See Figure .
  7. Thread adjusting screw into top cover. Turn adjusting screw counterclockwise until top cover contacts housing. Align cover to housing and continue turning screw for 2 more turns. Install top cover bolts.
  8. Check if sector and rack are installed properly by turning stub shaft lock-to-lock. Sector and rack are installed properly if stub shaft turns more than 4 turns.
  9. Adjust backlash between rack piston worm gear and sector shaft teeth by placing sector shaft in middle of its travel (straight-ahead wheel position). Install torque wrench and socket to stub shaft.
  10. If starting torque is not 1.7-3.5 INCH lbs. (.2-.4 N.m), adjust starting torque with adjusting screw. To decrease backlash, turn clockwise. Install NEW lock nut.
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