Upper wishbone mount
1 - ball joint; 2 - nut, 112-126 Nm; 3 - shock absorber strut bolt, 112-126 Nm; 4 - shock absorber strut; 5 - nut, 16-22 Nm; 6 - cup; 7 - rubber bushing; 8 - Upper wishbone; 9 - bolt, 90-125 Nm; 10 - nut, 90-125 Nm; 11 - transverse arm console; 12 - nut, 90-125 Nm; 13 - cap; 14 - nut, 100-120 Nm; 15 - washer
The illustration above shows an unusual arrangement of a multi-link wheel suspension consisting of a lower triangular arm (see section Lower wishbones), as well as a diagonal upper wishbone with a hinge. The upper wishbone is located between the body and the upper ball joint. The lower part of the shock absorber is fixed in the ball joint and on the lower side is the support pin of the steering knuckle. In this connection there is a bearing, which is covered with a cap, but usually does not require maintenance. The bearing can be replaced.
On a car with an injection engine, the connecting rod of the anti-roll bar is connected to the hinge. On a car with a carburetor engine, the rod is connected to the transverse arm.
The wishbone can be easily removed as there is no need to remove the shock absorber strut from the car. It should be noted that all rubber bushing supported parts should be tightened when the car is resting on its wheels.
1. Raise the front of the vehicle.
2. Place a lift under the lower control arm.
(The original is posted on the portal: «www.nissanbook.ru»)
3. Loosen the nut and bolt on the underside of the shock absorber and knock out the bolt.
4. With the injection engine installed, remove the stabilizer connecting rod nut, remove the parts underneath it and take out the rod.
5. Remove the steering knuckle cap and remove the pivot pin nut underneath it on the underside of the ball joint.
6. Unscrew the upper wishbone on the inner and outer side.
7. Position the lift in the best position and remove the parts that need to be removed. When observing the upper wishbone, you will notice that the steering arm on the left side is marked "L" and on the right side is marked "R". The wishbone bushings cannot be replaced. Both bearings of the ball joint on the steering knuckle can be replaced. To do this, knock both bearings out of the joint on opposite sides. The lower bearing is sealed with an oil seal. The outer bearing races remain in the joint and should be knocked out on opposite sides. To do this, the rod should be inserted into the groove of the corresponding race. The upper bearing should be pressed in to a size of 2.5 mm from the upper surface of the bearing to the upper edge of the joint housing. Finally, hammer the oil seal again until it is flush.
8. Install the upper wishbone and hinge in the reverse order of removal. Secure all parts without tightening, and when the wheels are on the ground, tighten the bolts and nuts to the specified illustrations force. Pay attention to the L and R markings when installing the upper wishbone. Fill the knuckle bearing pin housing and cap with grease, tighten the nut and put on the cap. The arrows in the illustration below show the connections to be tightened (anti-roll bar connection only if an injection engine is installed).
The arrows show the attachment points of the upper wishbone and the ball joint of the steering knuckle. On the model with an injection engine, you can also see the connection of the anti-roll bar.