SAFARI BSVI SERVICE MANUAL

WHEELS AND TYRES 6 B. TYRE WEAR PATTERN FORM OF WEAR MAJOR CAUSES PATTERN Tyre wears in multi- angle form (particularly conspicuous on shoulders)  Tyre and / or wheel centers are offset or bent  Hub and / or spindle centers are offset or bent  Looseness in wheel bearings and / or kingpins  Imbalances in rotating components Approximately half of tyre wears excessively quickly  Imbalances in rotating components  Tyre and / or wheel centers are offset  Hub and / or spindle centers are offset or bent One particular place on tyre wears excessively quickly  This is often caused by spot (localized wear) first occurring because of sudden application of the brakes or sudden starting which is aggravated as the vehicle continues to be operated  A patch has been applied inside the tyre Shoulder on one side of tyre (generally outside shoulder) wears excessively quickly  Incorrect camber and / or toe-in  Frequently turning sharp corners Alternate spots on both shoulders wear  Looseness in wheel bearings and / or kingpins  Tyre and / or wheel centers are offset or bent In the case of the rib tyre only one side of the rib wears, and the tread takes on the form of saw teeth  Frequently turning sharp corners  Incorrect camber and or toe-in In the case of edge of the lugs wears quickly, so the tread takes on the form of saw teeth  When lug tyres are fitted on the front wheels the dominant force working on them is the braking force, making this sort of wear liable to occur.  This is an inherent characteristic of lug tyres when overloaded or under inflated. When such wear occurs, the direction of rotation of the tyre should be changed. This can be done by refitting the tyre in the same rim such that the earlier inside sidewall is now outside sidewall. Do not include the tyre in rotation till the wear normalizes.