Table of contents: Removal ↓ Disassembling and replacing the hub…↓ Assembly of the steering knuckle ↓ Installing the steering knuckle ↓
Removal
View of a disassembled steering knuckle with a hub bearing and drive shaft
1 - retaining ring, outer; 2 - hub bearing; 3 - shield; 4 - steering knuckle; 5 - retaining ring, internal; 6 - inner seal; 7 - drive shaft; 8 - nut, 100-120 Nm; 9 - wheel pin; 10 - brake disc; 11 - wheel bolt, 100-120 Nm; 12 - cotter pin; 13 - Nut lock; 14 - hub bearing nut, 240-320 Nm; 15 - washer; 16 - wheel hub; 17 - outer seal; 18 - intermediate washer
Removing the hub and steering knuckle is also recommended if the drive shaft needs to be removed, whether for repairs, transmission removal, or other work.
1. Loosen the wheel nuts and drive shaft nut while the vehicle is standing on its wheels.
2. Place the front of the vehicle on stands and remove the wheel.
3. Remove the brake caliper. To do this, remove both bolts shown in the illustration below. Tie the brake caliper to the front suspension with a piece of wire. Do not allow the caliper to hang slack on the hose.
Both bolts shown by the arrows hold the brake caliper in place.
4. Remove the cotter pin from the tie rod crown nut, loosen the nut and separate the joint from the steering arm with a suitable puller (see illustration below). To avoid damaging the threads, you can screw the inverted nut onto the pin so that it is flush with it.
Pressing the ball joint of the steering rod out of the steering rod arm using a special puller.
5. Loosen the nut on the top of the steering knuckle and remove the steering knuckle guide pin from the upper control arm. As you can see, the connections are different from previous Nissan models. Press the entire steering knuckle down until it reaches the position shown in the illustration below.
Fold the steering knuckle down as a set and then knock the clamp out of the hub.
6. Thread the nut onto the drive shaft until the outer side is flush with the shaft and tap the shaft inwards slightly with a light alloy hammer to loosen it from the hub bearing.
7. On the underside of the steering knuckle, remove the ball joint nut on the wishbone and separate the ball joint with a puller. The puller shown in the illustration below is also suitable for suspension ball joints.
Checking the fluid level in the servo control compensation tank.
1 - warm; 2 - cold
7. Remove the steering knuckle from the front suspension. Remove the brake disc.
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8. If the steering knuckle needs to be removed together with the drive shaft, drain the transmission oil (unscrew the plug and place a container underneath).
9. Press the drive shafts out of the gearbox as described in Chapter Clutch and drive shafts for left and right shafts, as well as for manual or automatic transmission.
10. Remove the hub, steering knuckle and drive shaft from the vehicle, or leave the drive shaft in the transmission and remove the steering knuckle and hub from the drive shaft.
Disassembling and replacing the hub bearing
1. Completely loosen the hub nut and remove the drive shaft from the hub if it is still installed.
2. Clamp the steering knuckle in a vice and tap the hub out with a light alloy rod from the back. If the hub is knocked out of the steering knuckle, the hub bearing should always be replaced. The inner bearing race remains on the hub and must be removed with a suitable puller.
3. Remove the retaining ring on the outside of the steering knuckle using special pliers. On the back, remove the seal with a screwdriver and remove the second retaining ring. The notches in the retaining ring help install the pliers.
4. Place the steering knuckle under the press and press out the hub bearing from the outside in. Use a piece of pipe to press out the bearing. Clean all parts thoroughly. Bearings should always be replaced together with the races, as they become accustomed to each other. The steering knuckle can only be checked with a magnetic device.
Assembly of the steering knuckle
When installing the hub bearing and assembling the steering knuckle, proceed as follows:
1. Thoroughly clean the grease from the knuckle bore and the outer side of the hub bearing, and insert the inner snap ring into the groove of the knuckle.
2. Press the new bearing from the outside into the steering knuckle until it contacts the retaining ring, applying force to the outer race of the hub bearing.
3. Insert the outer snap ring into the groove. Check that the snap ring fits perfectly all the way around.
4. Lubricate the working edges of both seals with grease and hammer them into the steering knuckle from the front and rear without damaging them. Wipe off excess grease.
5. Place the steering knuckle on the press table and press the hub into the bearing and steering knuckle. Be sure to ensure that the pressing pressure does not exceed 3 tons.
6. Now you should check the bearing preload. To do this, place the steering knuckle on the press table and increase the load on the outer side of the hub to 3.5-5.0 tons. While holding the load, move the steering knuckle from side to side several times. The steering knuckle should rotate without jamming, despite the load.
Installing the steering knuckle
The installation of the steering knuckle with the drive shaft is carried out in the reverse order. Always install a new retaining ring at the end of the drive shaft. Details on installing drive shafts are given in Chapter Clutch and drive shafts. When installing the drive shafts into the differential, align the spline well. After installation, pull the shaft to check that the ring is snapped into place.
All the instructions given in must be followed Specifications at the beginning of the Chapter tightening torques. Tighten the drive shaft nut with a force of 240-320 N·m, install a locking pin on the nut and insert a new cotter pin.