The XJR and XJ8 uses an independent coil spring-type rear suspension. Outer bearing carrier and hub assembly is supported by control arm at bottom, and utilizes axle shaft as upper support. Suspension is controlled by 2 coil spring/shock absorber assemblies. Fulcrum shafts are used to connect control arms to chassis and hub carrier.
HUB BEARING PRELOAD
Hub bearing preload is controlled by shim adjustment between hub assembly and hub outer bearing. Shims are available in various thicknesses.
Checking
1. Raise and support vehicle. Remove wheel assembly. Clamp dial indicator mount to hub carrier. Ensure dial indicator pointer contacts hub flange.
2. Using 2 levers between hub and hub carrier, press hub outward. Note reading on dial indicator. The difference between dial indicator readings is preload of hub bearing. For adjustment, see HUB CARRIER under REMOVAL & INSTALLATION.
REAR SUSPENSION HEIGHT
1. Ensure vehicle has full fuel tank, all fluids are topped off and tire pressures correct. Roll vehicle about 30 feet on a level surface. Measure distance between differential support plate at both sides and ground. See Fig. 2 .
2. Height measurement for coupe and convertible. If height is not within specification, check all bushings and replace as necessary. If bushings are okay, replace rear springs.
Source
Tuesday, May 25, 2010
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