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Old 09-02-2009, 07:19 PM   #1
JSarv
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Default Tires wearing wierd.

I've had about 10 sets of tires, I've seen some weird wear but these take the cake.

I just had them balanced and rotated and now I'm thinking that I either have an alignment problem or I have bushings that are complete junk.

Tires are Yokohama S4? All Seasons on 04 STI BBS.

Front tires are wearing (as a guess) about 5% more than the outsides (camber or toe I would guess) BUT 1.5" from the inside of tire there is a 1" wide patch all the way around the tire that is worn about 10% less than anywhere else on the tire. The outside 75% of the tire is worn very even from edge to the tall patch...

^^ Tires were on the rear.


Rear tires (were on the front) are good but the inside tread is cupping, like reverse of what you would think it would do. The leading edge of the tread block is raised. And the inside is worn a little more than the outside (same tread block that has the weird raised front edge)

^^ What would cause all of this nonsense? The rear suspension has never been touched, could worn bushings cause the 1" strip of unworn tread?


I'm going to take pictures as my above is hard to understand.

c/n: tires are wearing weird.

-Jerod
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Old 09-02-2009, 07:41 PM   #2
Badler
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When was your last alignment? A picture says a thousand words too.
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Old 09-02-2009, 07:54 PM   #3
JSarv
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When I bought my tires. So about 10k miles ago.

If I get a chance before it dark I will take some.

Just never seen tires with a "high" tread block towards the middle and the outer most of the tire is perfect. The inner most block is raised in the front of the block IE the side that touches the ground first is raised.


-Jerod
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Old 09-02-2009, 10:22 PM   #4
Charlie-III
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What tire pressures are you running?
What is the max inflation pressure listed on the tire?
Are your front struts worn out, cupping of tires is one sign of bad struts.
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Old 09-02-2009, 10:50 PM   #5
JSarv
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32/31? I think whatever the door says. Alot more than I'm running.

I do believe its strut/bushing = alignment problem.

Its getting put away for the winter in a month or so - but I assume since the wear pattern started this way no matter the alignment/bushing/strut fix it will change.

I see lots $$$ being spent this fall on a fix for this + new tires.

-Jerod
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Old 09-03-2009, 10:26 AM   #6
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pictures?
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Old 09-03-2009, 11:33 PM   #7
JSarv
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Sorry had to work + class = 18hr day

I will have some up tom. evening.


-Jerod
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