Thread: heel and toe tyre wear

i dont know that term sorry, but do you mean where the leading edge of each tread block is worn? looks like a serated edge? toe out issues can be a cause of this. if you just mean an all over wear on the outside edges, then this is a good sign of under inflation and possibly a camber issue. i notice that lots of front live axle vehicles run what looks to be positive camber if anything.

It seems to be caused by consistent scrubbing or sliding of the blocks on the road, so that the leading edge wears more than the trailing edge.

This is almost always caused by some sort of misalignment of the wheels - underinflation usually just causes wear on the edges, and in my experience has to be pretty bad to be significant on radial tyres.

The only adjustment on the solid axle Landrovers is toe in/out, but there are a number of other potential causes of misalignment, most commonly swivel bushes and wheel bearings. But also possible are bent or broken axle housings, loose stub axles, bent wheels etc.

The liability to show this type of wear seems to vary a lot with different types of tyre, probably depending on the rubber composition and shape and spacing of the blocks. Some tyres seem to do it regardless of any vehicle fault - I have experienced this with straight bar treads. In this case the solution is simply regular tyre rotation.

In my experience, by far the most common cause is incorrect toe in, although this will only apply to the front axle of course.

Shock absorber faults, where they result in tyre wear, usually show a somewhat similar pattern, but one that is not strictly tied into the tread blocks - in other words, a pattern of high and low wear, often on the edges, but with a spacing different from the block spacing.

John

I understand the RR should have a different camber to just about everything else on the road. Discoveries may be the same. So many service stations do not read the book specs and align the RR's wrong. Do not know if this is the cause in your case but it may be the cause.

do you mean where the leading edge of each tread block is worn?

Yep.

Some tyres seem to do it regardless of any vehicle fault - I have experienced this with straight bar treads. In this case the solution is simply regular tyre rotation.

I'm actually suspecting this. I only know one other person who has run these tyres (Terra Trac - Chinese made). He had them on a Landcruiser and had the same issue with them. Other tyres since haven't given him a problem. I'll just rotate them regularly, as you say.