SERVICING FRONT HUBS
The servicing of the front hubs has been described in detail in earlier paragraphs under “Dismantling and Assembling Suspension”. This covers the removing and refitting of the hubs, the fitting of new bearings and end float adjustment.
CHECKING FRONT SPRINGS
Full details of the lengths and loadings for checking the front spring on a spring testing rig are given in the “General Data Section”.
While it is possible to check the front spring heights by taking the height of the car and comparing it with one known to be in excellent condition, the possibility of
incorrect spring(s) or packing piece(s) that may be fitted, particularly to unknown second-hand cars, makes this method of checking very unreliable.
ACCIDENTAL DAMAGE
In the event of accident damage having been caused to the front of the vehicle involving the front suspension, all parts suspected of damage should be removed, cleaned and the measurements checked on a surface block.
The measurements obtained should be compared with those given in the appropriate dimensional illustration included at the end of this Section. Parts found to be defective must be discarded and replaced by new parts. No attempt should be made to rectify and refit damaged parts.
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DIAGNOSING STEERING FAULTS
Steering complaints can arise from causes other than incorrect steering geometry and accident damage.
Other possible causes which tend to have an adverse effect on steering stability should be checked and eliminated; these are:—
1. Lack of lubrication—steering unit.
2. Under-inflated tyres.
3. Wheels out of balance.
4. Tyres unequally worn.
5. Tyres of different tread pattern.
6. Wear in steering components.
7. Improperly adjusted steering unit.
8. Front hubs requiring adjustment.
9. Faulty shock absorbers.
10. Rear axle out of alignment.
11. Defective front springs.
12. Loose steering unit or other components.
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