Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Manual Steering Gear

Print

REMOVAL & INSTALLATION



See Figure 1



Click image to see an enlarged view

Fig. Fig. 1: Manual steering gear assembly

1982-86 Vehicles
  1. Raise and support the car on jackstands.
  2.  
  3. Using the Ball Joint Remover tool HT72520000, remove the tie rod from the knuckle.
  4.  
  5. Loosen, but do not remove, the steering gear mounting bolts.
  6.  
  7. Remove the steering column lower joint.
  8.  
  9. Unbolt and remove the gear.
  10.  

To install:
  1. Install the steering gear assembly to the vehicle. Torque the tie rod-to-steering knuckle nut to 26-35 ft. lbs. (34-48 Nm), the steering gear-to-frame clamp bolts to 43-58 ft. lbs. (58-78 Nm), the lower joint-to-pinion gear bolt to 22-29 ft. lbs. (29-39 Nm) and the lower joint-to-steering column bolt to 22-29 ft. lbs. (29-39 Nm).
  2.  

When installing the lower steering joint to the steering gear, make sure that the wheels are aligned with the vehicle and that the steering joint slot is aligned with the steering gear cap or spacer mark.

1987-96 Vehicles
  1. Raise and support the vehicle safely and remove the wheels.
  2.  
  3. Disconnect the tie rod from the steering knuckle and loosen the steering gear attaching bolts.
  4.  
  5. Remove the bolt securing the lower joint to the steering gear pinion and remove the lower joint from the pinion.
  6.  
  7. Remove the bolts holding the steering gear housing to the body, and remove the steering gear and linkage assembly from the vehicle.
  8.  

To install:
  1. Install the assembly into the vehicle. When fitting the lower U-joint, make sure the attaching bolt is aligned perfectly with the cut out in the splined end of the steering column shaft.
  2.  
  3. Tighten the steering gear mounting clamp bolts to 54-72 ft. lbs. (73-97 Nm). Tighten the tie rod end nuts to 22-29 ft. lbs. (29-39 Nm).
  4.  
  5. Have the front end aligned by a qualified alignment technician.
  6.  

ADJUSTMENTS



See Figure 2



Click image to see an enlarged view

Fig. Fig. 2: Exploded view of a typical manual steering gear assembly-model R25S shown

1982-86 Vehicles
  1. Remove the steering gear from the car as previously outlined. Disconnect the tie rod ends and remove the boots.
  2.  
  3. Turn the pinion shaft to neutral (centered) position. This puts the spacer at -38.3° to -25.3° on 1982-84 models, and -33.5° to -46.5° on 1985 models; it sets the guide chip at 43.5° to 56.5° on 1986 models.
  4.  
  5. On 1982-84 models, measure pinion rotating torque with an inch lb. torque wrench working on the pinion shaft. It must be 13 inch lbs. (1.5 Nm) or less. Measure rack starting force with a spring scale. Rack starting force must be 18-40 lb. (8-18 kg) Loosen the locknut and adjust the retainer adjusting screw as necessary.
  6.  
  7. On 1985 and 1986 models, measure the pinion shaft rotating torque with an inch lb. torque wrench on the pinion shaft. Rotate the shaft slowly from its neutral or centered position 180° in both directions, watching for the spot where torque is at its greatest level. Loose en the adjusting screw with the pinion at this position and then hand-tighten the adjusting screw until its end touches the retainer. Hold the adjustment and tighten the locknut.
  8.  
  9. On 1985 and 1986 models, now rotate the pinion from its centered position to the end of the rack and make sure torque is no more than 13 inch lbs. (1.5 Nm) on 1985 models and 16 inch lbs. (1.8 Nm) on 1986 models.
  10.  
  11. Reassemble the steering gear linkage and install the gear in the car.
  12.  

1987-90 Vehicles
  1. Remove the steering gear from the car as previously outlined. Disconnect the tie rod ends and remove the boots.
  2.  
  3. Turn the pinion shaft to neutral (centered) position. This puts the guide chip at neutral position (6° either side of center).
  4.  
  5. Loosen the locknut. Tighten the adjusting screw to 43 inch lbs. (4.9 Nm). Then, loosen it and tighten it to this torque again.
  6.  
  7. Loosen the adjusting screw and torque it to 1.7 inch lbs. (0.19 Nm).
  8.  
  9. Rotate the pinion to move the rack back and forth all the way through two full cycles. Then, return it to neutral position.
  10.  
  11. Slowly rotate the pinion and measure rotating torque through the entire 180° range either side of neutral. Find the point where rotating force is at its maximum. Loosen the adjusting screw at this point. Then, torque it to 26 inch lbs. (3.0 Nm).
  12.  
  13. Now check the pinion rotating torque. Traveling 100° either side of neutral position, it should average 6.1-10.4 inch lbs. (0.70-1.20 Nm). It must not fluctuate more than 2.6 inch lbs. (0.30 Nm).
  14.  
  15. If necessary, loosen the adjusting screw until the pinion rotating torque is within specification. Hold the adjusting nut in this position and torque the locknut to 29-43 ft. lbs. (39-58 Nm). If this will not correct the rotating torque, it will be necessary to replace the retaining spring.
  16.  

1991-96 Sentra
  1. Set the gears in the neutral position and loosen the locknut.
  2.  
  3. Torque the adjusting screw 2 times to 26 inch lbs. (2.9 Nm).
  4.  
  5. Loosen the adjusting screw and retorque to 1.7 inch lbs. (0.2 Nm).
  6.  
  7. Rotate the pinion to move the rack back and forth 2 times. Return to the neutral position.
  8.  
  9. Slowly rotate the pinion and measure the rotating torque in a 180° range. Find the position where the rotating torque is maximum.
  10.  
  11. Loosen the adjusting screw at that position and torque the adjusting screw to 26 inch lbs. (2.9 Nm), then back it off 50-70°.
  12.  
  13. Prevent the adjusting nut from turning and torque the locknut to 29-43 ft. lbs. (39-59 Nm).
  14.  
  15. Check the steering gear does not bind.
  16.  

OVERHAUL



Overhaul of the manual steering gear is recommended to be performed by qualified steering gear rebuilders. The cost for specific components may not be as cost effective as purchasing a rebuilt unit.

 
label.common.footer.alt.autozoneLogo