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Author Topic: Rear Suspension - inner tyre wear - solution?  (Read 2541 times)

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Vulpine

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Rear Suspension - inner tyre wear - solution?
« on: 15 May 2010, 23:16:23 »

Hi All
Have had my car 4 wheel aligned etc but still wearing the inner tread on the rear tyres at great speed.
Any suggestions any one?
cheers
Jon
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alank46

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #1 on: 15 May 2010, 23:25:22 »

Hi
Who aligned it, did they do it properly, what results did the printout show?
Alan

Quote
Hi All
Have had my car 4 wheel aligned etc but still wearing the inner tread on the rear tyres at great speed.
Any suggestions any one?
cheers
Jon
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Vulpine

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #2 on: 15 May 2010, 23:59:33 »

ok ill look the results out.
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feeutfo

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #3 on: 16 May 2010, 00:55:20 »

what he said /\ also, is this on the same tyre?
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Vulpine

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #4 on: 16 May 2010, 18:59:16 »

here are the results from the setup (both tyres currently wear out the same on the inside 2 inches):
Rear Camber: L-2.5deg,R-2.0deg
Rear Toe: L0.2deg,R0.25deg
Front Camber: L-2.4deg,R-2.4deg
Front Toe: L0.1deg,R0.1deg
Front Caster: L5.6deg,R6.1deg
In fact the fronts wear too on the inside but not so bad.
IS the camber too near the limit of R-2.5deg and F-2.4deg?
Can it be adjusted by me?
« Last Edit: 16 May 2010, 19:01:36 by vulpine »
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feeutfo

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #5 on: 16 May 2010, 19:30:29 »

oooh thats not right, for a start front camber should be 1.10 both sides and at least .50 of a degree to much on the back. Rear toe should be 0.10 degrees.

Two thingmto bear in mind with all this. If your tyres wear badly and the car is re set up to correct the wear, the wear wont dissapear until new tyres are fitted.

Secondly the rear only has one adjustment which affects toe and camber at the same time, so if the rear track rod adjuster is  seized both will be out.

Those numbers look like somebody has just gone to factory settings which are far too wide a tolerance.

Suggest a trip to wheels in motion in Chesam, they know the omega and how to set it to tired old suspension. :y
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feeutfo

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #6 on: 16 May 2010, 19:35:42 »

yes its possible to adjust diy, but impossible to do accurately to the point you can trust it not to ruin expensive tyres.

You could take it back and complain...?
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Vulpine

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #7 on: 16 May 2010, 21:32:13 »

ok to reduce camber should i shorten the track rod? I intend to remove them, free them up and replace.
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feeutfo

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #8 on: 16 May 2010, 22:53:27 »

Quote
ok to reduce camber should i shorten the track rod? I intend to remove them, free them up and replace.

mine needs freeing off as well on the pass side, and i've no idea which way to turn it, there's no way of telling how accurate the setting is without meassuring on a lazer rig such as wims hawk eye .
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TheBoy

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #9 on: 17 May 2010, 10:17:53 »

Those settings are appallingly bad :o - you will knacker the front tyres quickly as well.


With the rear, its a compromise between camber are toe.  If you cannot get a good compromise, its likely something is bent at the back...
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mathewst

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #10 on: 17 May 2010, 11:12:24 »

Can anybody give  settings what would be at least near correct.
I would gladly go to WIM but it is several thousand miles away  ;D
The garage here that does those probably has no idea what they aare doing!
I did get it done but obviously it is wrong
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Sixstring

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #11 on: 17 May 2010, 11:51:33 »

HaHaHa!!   somebody didn't read your location on your avatar, (Chris.............??)


bloody long round trip for a good tracking.................
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Re: Rear Suspension - inner tyre wear - solution?
« Reply #12 on: 17 May 2010, 14:10:56 »

Quote
HaHaHa!!   somebody didn't read your location on your avatar, (Chris.............??)


bloody long round trip for a good tracking.................

Think Chris was referring to the OP, who is in Kent ;) ;) Much closer than me even and I make the trip to WIM when needed :y
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Vulpine

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #13 on: 04 July 2010, 21:08:13 »

So if something is worn causing excessive camber at the rear, what could it be?
I have adjusted one tie bar right up, not much thread left but still the wheel looks excessively cambered!
Any ideas appreciated.... :(
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charlie

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Re: Rear Suspension - inner tyre wear - solution?
« Reply #14 on: 04 July 2010, 21:15:13 »

A shot in the dark,are your springs ok :-/
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