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Author Topic: Tyre wear - cause?  (Read 2606 times)

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The Barge Captain

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Tyre wear - cause?
« on: 17 September 2008, 10:35:01 »

I'm suffering from advanced tyre wear and need to fix cause before fitting new boots. Ideally a visit to WIM is the answer but time and distance prohibit, and anyway, if it is wishbones, would need to change first.
What do you guys think?

[size=14]Front offside inner edge - outside ok[/size]



[size=14]Front Nearside inner edge - outer is ok[/size]



[size=14]Rear Nearside[/size]



The rear offside looks similar to the rear nearside
« Last Edit: 17 September 2008, 10:36:18 by The_Barge_Captain »
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johnnycboy

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Re: Tyre wear - cause?
« Reply #1 on: 17 September 2008, 10:36:55 »

def looks like wishbone bush failure - not uncommon as you already know.  hth

« Last Edit: 17 September 2008, 10:37:17 by johnnycboy »
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Kevin Wood

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Re: Tyre wear - cause?
« Reply #2 on: 17 September 2008, 10:38:14 »

Looks like too much camber to me. Unlikely to be caused directly by wishbones but check them before spending on alignment.

Kevin
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Marks DTM Calib

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Re: Tyre wear - cause?
« Reply #3 on: 17 September 2008, 10:38:57 »

The front is camber......and more so on the OSF.

Have the tyres been swapped front to rear at any point?
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The Barge Captain

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Re: Tyre wear - cause?
« Reply #4 on: 17 September 2008, 10:45:13 »

No  not swopped, and fronts were new when i bought it last December and the rears fairly new.
Can't remember what the fronts are but the rears are Nankang ditchfinders which actually seem ok
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The Barge Captain

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Re: Tyre wear - cause?
« Reply #5 on: 17 September 2008, 10:49:44 »

Just read Tony from WIM's explanation in FAQ's about camber.
This could be related to the fact that the front springs seem very soft - always hitting the spliter on the road on the downside of speed bumps -even when i'm not flying :D
Could be looking at new springs and shocks then before alignment. >:(
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Marks DTM Calib

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Re: Tyre wear - cause?
« Reply #6 on: 17 September 2008, 10:52:20 »

Quote
Just read Tony from WIM's explanation in FAQ's about camber.
This could be related to the fact that the front springs seem very soft - always hitting the spliter on the road on the downside of speed bumps -even when i'm not flying :D
Could be looking at new springs and shocks then before alignment. >:(


Sounds more like its not damping properly than what would be a weaker spring.
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The Barge Captain

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Re: Tyre wear - cause?
« Reply #7 on: 17 September 2008, 11:05:19 »

Any recomendations other than Vx for shocks?
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Marks DTM Calib

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Re: Tyre wear - cause?
« Reply #8 on: 17 September 2008, 11:14:49 »

Quote
Any recomendations other than Vx for shocks?


I find the KYB ones excellent.....plus Bilstein if you want it a little firmer.
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Marks DTM Calib

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Re: Tyre wear - cause?
« Reply #9 on: 17 September 2008, 11:20:13 »

Actually Vx seem cheapest at 42.22+vat trade club!
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JamesV6CDX

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Re: Tyre wear - cause?
« Reply #10 on: 17 September 2008, 12:00:59 »

Mine was suspected camber too - however it turned out it was the tracking (toe) eating the inner edges...
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Re: Tyre wear - cause?
« Reply #11 on: 17 September 2008, 12:06:08 »

Quote
Mine was suspected camber too - however it turned out it was the tracking (toe) eating the inner edges...


Thought that the camber was reset by Kevin after the wear started to show?
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JamesV6CDX

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Re: Tyre wear - cause?
« Reply #12 on: 17 September 2008, 12:09:46 »

Quote
Quote
Mine was suspected camber too - however it turned out it was the tracking (toe) eating the inner edges...


Thought that the camber was reset by Kevin after the wear started to show?

In the end, we just adjusted the camber as far as it would go! But, this was long after it was just starting to show..
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JamesV6CDX

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Re: Tyre wear - cause?
« Reply #13 on: 17 September 2008, 12:10:21 »

Even after we made this adjustment - it ate a new set of tyres again.

It was only after Tony set the Toe that it is fixed..
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Alex Wood

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Re: Tyre wear - cause?
« Reply #14 on: 17 September 2008, 13:15:33 »

My fronts were down to the canvas on the inner edges, rears weren't so bad but still worn in the same area. Tracking was out everywhere and the front rods were seized. New front track rods and toe adjustment seem to have cured it, no sign of uneven wear 10,000 miles later.

I think the wishbones have had it because the car's behaving like a total moron on twisty roads and I get shudder under braking, but my understanding is this will cause accelerated wear across the whole tread, not just on the inner edge, if it's left much longer.

Here's my before and after from Supertyres in Malden for reference.



« Last Edit: 19 September 2008, 00:00:08 by alexwood »
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