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Author Topic: Severe uneaven tyre wear  (Read 1943 times)

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psychnurse

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Severe uneaven tyre wear
« on: 14 July 2008, 19:30:18 »
On the front tyres the inner are down to the nylon, the outsides have very good tread. What should be considered in trying to minimise this as I am replacing all four this week.
Thanks
 :y
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TheBoy

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Re: Severe uneaven tyre wear
« Reply #1 on: 14 July 2008, 19:31:39 »
Common fault.

Get your arse down to WIM pretty damn quick - the £85 it will cost is cheaper than constantly buying new tyres.
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psychnurse

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Re: Severe uneaven tyre wear
« Reply #2 on: 14 July 2008, 19:34:11 »
Quote
Common fault.

Get your arse down to WIM pretty damn quick - the £85 it will cost is cheaper than constantly buying new tyres.



What is WIM ?  :-[
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rickyboy

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Re: Severe uneaven tyre wear
« Reply #3 on: 14 July 2008, 19:36:31 »
Wheels In Motion.  Never used them myself because I'm not aware of one in my area.  You need your geometry set up.  My tyres only had a few thousand miles and they were worn on the insides.
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TheBoy

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Re: Severe uneaven tyre wear
« Reply #4 on: 14 July 2008, 19:36:58 »
Wheels In Motion.  Probably the most respected Omega geometry people in the UK
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TheBoy

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Re: Severe uneaven tyre wear
« Reply #5 on: 14 July 2008, 19:37:26 »
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psychnurse

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Re: Severe uneaven tyre wear
« Reply #6 on: 14 July 2008, 19:40:55 »
Quote
www.wheels-inmotion.co.uk



I that Hampshire? Do not recognise the postcode, or postal address for that matter. Does sound like what I need.
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JasonH

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Re: Severe uneaven tyre wear
« Reply #7 on: 14 July 2008, 19:55:57 »
Basically as Omegas get older the springs sag a bit and the camber setting goes out.

The manufacturer's figures are daft - the tolerances are so wide if the wheel is attached to the car they'll be "in spec".

So you need someone who knows what they are doing to check for play and if all OK set the camber and toe correctly (not just to "spec").
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zirk

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Re: Severe uneaven tyre wear
« Reply #8 on: 14 July 2008, 19:58:12 »
Quote
Quote
www.wheels-inmotion.co.uk



I that Hampshire? Do not recognise the postcode, or postal address for that matter. Does sound like what I need.

psychnurse

theres an OOF meet / training day there on the 27th of this month. Why dont you sign up and come along?
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TheBoy

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Re: Severe uneaven tyre wear
« Reply #9 on: 14 July 2008, 21:03:43 »
Quote
Quote
www.wheels-inmotion.co.uk



I that Hampshire? Do not recognise the postcode, or postal address for that matter. Does sound like what I need.
South BUCKS.  Between High Wycombe and Hemel Hempstead.

Recommended, as they know its not just a case of getting it between manufacturers spec....
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feeutfo

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Re: Severe uneaven tyre wear
« Reply #10 on: 14 July 2008, 22:00:24 »
 hi nursey. a little test for you if you fancy. Got this with help of Rob at the Reading meat. With the car parked up, put your foot on the top of the wheel under the wheel arch about 10/11 o'clock and stand by the bumper with the other foot, now push the wheel back to the rear of the car while looking at the centre of the wheel, if it even so much as smells like any movement or play, then i think you may well need  new wishbones, do both front wheels in both directions. Or wim will diagnose no doubt but if they say they are buggerd i guess that means a return visit? Will wim fit them for you if you need them and you have some with you, or does this just complicate things. Food for thought. ;)
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Bandit127

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Re: Severe uneaven tyre wear
« Reply #11 on: 15 July 2008, 18:21:35 »
Quote
On the front tyres the inner are down to the nylon, the outsides have very good tread. What should be considered in trying to minimise this as I am replacing all four this week.
Thanks
 :y
Just posted here:
http://www.omegaowners.com/forum/YaBB.pl?num=1215732950
on my experience but I will repeat it here.

This tyre wear pattern is not cosistent across the thread. Only the inner 20mm or so gets badly worn while the rest is evenly worn. I don't think it is camber or tracking because the effects of these are usually proportional across the whole tread.

In my case, the front wishbone bushes were badly worn, causing severe toe out under breaking - hence the wear pattern. At rest, on the ramps, the tracking and camber were checked and were in spec. Fitting new ones was not a painless task but worth doing for the new tyres.
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Marks DTM Calib

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Re: Severe uneven tyre wear
« Reply #12 on: 15 July 2008, 18:58:08 »
Ow contrare........camber wear is extreme and confined to a very small percentage of the tread area.....

Consider a rectangle which has its base flat to the desk....not tilt it slightly....how much of its base is now touching the desk. This is just an-analogy as tires don't have 90deg corners but, it gives you a quick incite as to why camber wear confined to small edge patches on tires!
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Big_Roger

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Re: Severe uneaven tyre wear
« Reply #13 on: 15 July 2008, 21:01:38 »
Hi All,
If I may comment please.  I think this thread shows just how much we all need to try and get to the WIM OOf Knowledge day on 27th July.

It has been set up by Forum Admin for precisely the reason, to educate us and give a better understanding of our cars.


Roger
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Be patient ! Something else will go wrong for you to fix if you wait long enough !!

Jimbob

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Re: Severe uneaven tyre wear
« Reply #14 on: 15 July 2008, 21:05:00 »
Hear Hear!

I know of geometry, thats as far as it goes  :-[

Ready to learn more and get the 1st car expertly set up  :y
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