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Home >> Nissan-Datsun >> 1978 >> F10 2D Hatchback >> Repair and Diagnosis >> Steering >> Manual Steering >> Steering Gears & Linkage - Rack & Pinion >> Overhaul >> Assembly & Adjustment

Assembly & Adjustment

  1. Press bearing onto pinion gear, then install 0.047 - 0.049" (1.119 - 1.24 mm) snap ring in shaft ring groove (inner side of bearing). Install snap ring of proper thickness in shaft ring groove (outer side of bearing), to limit bearing end play to 0.0039" (0.1 mm). Snap rings are available in the following thicknesses: 0.041 - 0.043" (1.04 - 1.09 mm) 0.043 - 0.045" (1.09 - 1.14 mm) 0.045 - 0.047" (1.14 - 1.19 mm) 0.047 - 0.049" (1.19 - 1.24 mm), and 0.049 - 0.051" (1.24 - 1.29 mm).
  2. Drive rack bushing into tube and secure with snap ring. Install rubber mount with plate onto tube, making sure that cut-out section in mount is aligned with hole in tube and ventilation hole is not clogged.
  3. With gear clamped in vise, thinly coat rack teeth and sliding surfaces with multi-purpose grease and install rack into tube from gear housing side. Coat pinion teeth and bearing with multi-purpose grease, then mesh pinion with rack and insert pinion assembly into housing.
  4. Secure bearing in housing with a snap ring of proper thickness to take up clearance. Snap rings are available in the following thicknesses: 0.067 - 0.069" (1.70 - 1.75 mm) 0.065 - 0.067" (1.65 - 1.70 mm) 0.063 - 0.065" (1.60 - 1.65 mm), and 0.061 - 0.063" (1.55 - 1.60 mm).
  5. Press oil seal into housing, then pack sealing lips with grease. Check that pinion assembly rotates smoothly.
  6. Check pinion for minimal end play using a dial gauge. Play must not exceed 0.012" (0.3 mm). If it does, recheck gear, rack teeth, and adjusting snap rings.
    Fig 1: Measuring Pinion Axial Play
    G09357628Courtesy of NOT AVAILABLE
  7. Grease rack damper, then insert damper and spring into housing. Screw in adjuster and install lock nut. Turn in adjuster until damper is tight, then back off adjuster approximately 20 to 25 degrees. Apply suitable sealant on adjuster threads and tighten lock nut.
  8. After gear assembly is complete, check pinion rotary torque and force required to move rack. Pinion torque should be 0-17 INCH lbs. (0-20 cmkg) and rack pull force should be 33-66 lbs. (15-30 kg). If steering gear does not meet specifications, readjust rack damper adjuster.
    Fig 2: Measuring Rack Pulling Force
    G09357629Courtesy of NOT AVAILABLE
  9. Install boot to inner socket assembly, then connect socket assembly to tie rod socket and tighten lock nut temporarily. Screw in inner socket as far as it will go. Apply locking agent to threaded part of lock nut and tighten to specification.
    Fig 3: Tie Rod Length Adjustment
    G09357630Courtesy of NOT AVAILABLE
  10. Install boot and clamp on tie rod assembly, then measure swinging torque and axial play of inner socket assembly. Swinging torque should be 1.1-5.4 ft.lbs. (.15-.75 kg). Axial play should be zero.
  11. Install boots to gear housing and rubber mount. Adjust tie rod length at each side to 5.02" (127.5 mm) and tighten lock nut to specifications.
    TIGHTENING SPECIFICATIONS

    Application Ft.Lbs. (mkg)
    Steering Wheel Nut 20-25 (3.0-3.5)
    Column Clamp Bolt 6.5-10 (.9-1.4)
    Upper "U" Joint Shaft-to-Column Bolt 14-17 (1.9-2.4)
    Lower "U" Joint Shaft-to-Column Bolt 14-17 (1.9-2.4)
    Tie Rod Stud-to-Steering Knuckle Nuts 40-47 (5.5-6.5)
    Inner Socket Lock Nut 58-72 (8-10)
    Outer Socket Lock Nut 27-34 (3.8-4.7)
    Gear Housing Clamp Bolt 16-25 (2.2-3.4)
    Adjuster Lock Nut 29-43 (4-6)
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