Nissan Z - ZX 1970-1988 Repair Guide

Power Steering Gear

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ADJUSTMENTS



  1. Raise and support the front of the vehicle on jackstands.
  2.  
  3. Using a large wrench, loosen the large locknut at the bottom of the steering gear.
  4.  
  5. Using a large screwdriver, while holding the locknut with the wrench, turn the adjusting screw all the way in and back it off 20°-25°, then secure the locknut to 29-43 ft. lbs. (39-59 Nm).
  6.  
  7. Check the steering wheel for play, (if necessary) readjust it.
  8.  

REMOVAL & INSTALLATION



1973-81 Models
  1. Block the rear wheels. Raise and support the front of the vehicle on jackstands.
  2.  
  3. Place an oil catch pan under the power steering gear, then remove the oil lines from the steering gear and drain the oil into the pan.
  4.  
  5. Loosen the steering column lower joint shaft bolt.
  6.  
  7. Remove the steering shaft-to-steering pinion gear, the separate the shaft from the steering gear.
  8.  
  9. Remove the Pitman arm-to-steering gear nut and washer.
  10.  
  11. Using the Steering Gear Arm Puller tool No. ST29020001, separate the Pitman arm from the steering gear.
  12.  
  13. Remove the steering gear-to-frame bolts and the steering gear from the vehicle.
  14.  
  15. To install, reverse the removal procedures. Tighten the steering gear-to-frame bolts to 23-30 ft. lbs. (31-41 Nm) and the Pitman arm-to-steering gear nut to 101-130 ft. lbs. (137-177).
  16.  
  17. Refill the power steering pump, start the engine and bleed the system.
  18.  

1982-88 Models

See Figures 1, 2, 3, 4, 5, 6 and 7

  1. Block the rear wheels. Raise and support the front of the vehicle on jackstands.
  2.  
  3. Place an oil catch pan under the power steering gear, then remove the oil lines from the steering gear and drain the oil into the pan.
  4.  
  5. Loosen the steering column lower joint shaft bolt.
  6.  



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Fig. Fig. 1: Power steering rack and gear case-1987 300 ZX shown



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Fig. Fig. 2: Remove the retaining bolt securing the U-joint between the steering rack and steering column



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Fig. Fig. 3: Inspect the bolt threads for distorted threads or other signs of damage, and replace if needed



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Fig. Fig. 4: Use a flare-end wrench to loosen the power steering line connections at the case



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Fig. Fig. 5: Each connection is of a different diameter. Therefore, different wrenches are needed



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Fig. Fig. 6: Remove the bolts securing the rack assembly to the vehicle frame



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Fig. Fig. 7: Remove the clamp and hose attached to the steering rack boot

  1. Remove the steering shaft-to-steering pinion gear, the separate the shaft from the steering gear.
  2.  
  3. Remove the tie rod end-to-knuckle arm cotter pins and castle nuts.
  4.  
  5. Using the Steering Ball Joint Puller tool No. HT2520000, separate the tie rods from the knuckle arms.
  6.  
  7. Remove the steering gear housing-to-suspension crossmember bolts.
  8.  
  9. Place a floor jack under the engine's oil pan, with a block of wood between the jack and the pan.
  10.  
  11. Loosen the engine mounting bolts and raise the engine approximately 0.5 in. (13mm), then remove the steering gear and linkage from the vehicle.
  12.  
  13. To install, reverse the removal procedures. Tighten the steering gear-to-suspension crossmember bolts to 33-44 ft. lbs. (45-60 Nm) for 1982-83, 22-29 ft. lbs. (29-39 Nm) for 1984-85 and 29-36 ft. lbs. (29-39 Nm) for 1986-88 and the ball joints to 40-72 ft. lbs. (54-98 Nm).
  14.  
  15. Refill the power steering pump, start the engine and bleed the power steering system.
  16.  

 
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