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Old 06-22-2009, 11:25 PM   #1
recharged95
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Default Are these defective tires

had an alignment about 7-8mos ago. Also had a 4 tire rotation/rebalance. Sometime since then, the rear tires have developed a cracking condition on the outside shoulders at spots around the full shoulder:



Is this a sign of a defective tire(s)?

I also noticed the inside tread of both rears are wearing faster (not bald, but definitely faster). Went to the place of purchase (Costco) and the manager said since the tires are 3 yrs old, no warranty applies and I need to buy new tires at the full price--not considering I actually need 4 tires to keep the AWD happy and that the tires have about 15K left in them (>1/4" tread). He also said the cracking is from the alignment (??). I believe the wear problem is from the alignment, but the cracking sounds like a defective product? I've had Contisport contacts bald on one side (excessive chamber) and the tires never cracked like this. I'm wondering how safe this is after fixing the alignment or should I just get 4 new tires?
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Old 06-23-2009, 12:30 AM   #2
Uncle Scotty
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d0000000000000000000d...ya need more negative camber...ya cornering on the side of the tread

and ya need the toe set to '0'

yer alignment is ****...real ****
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Old 06-23-2009, 11:59 AM   #3
recharged95
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thanks, i think the alignment shop f-ed the alignment, likely didn't tighten bolts somewhere...
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Old 06-23-2009, 12:36 PM   #4
Luke@tirerack
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I don't see anything wrong with the tires pictured
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Old 06-23-2009, 01:14 PM   #5
ommmjido
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Quote:
Originally Posted by Luke@tirerack View Post
I don't see anything wrong with the tires pictured
d000000000000000d, if Scotty saids there's sth wrong, there's gotta be sth wrong. coz he's just koo like that!
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Old 06-24-2009, 12:03 AM   #6
recharged95
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the belts are cracking @ the shoulders. This is happening to both rear tires. Front tires are fine.

In the 1st pic, center, the there's a 'popped bubble' and it appears the belt or something is almost exposed. I'll try to get a clearer pic. The 2nd pic, there along 1/2 the shoulders. It has a look like nails are coming out of the tire if that helps.

Scotty, with the insides wearing, isn't that excessive negative camber: the insides appear wearing faster and the outside shoulders are cracking and it's cracking to a point I can pull rubber chunks off...

Last edited by recharged95; 06-24-2009 at 12:24 AM.
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Old 06-24-2009, 10:58 AM   #7
leftbraned
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Buy some new tires. Even if you have a defective condition most manufacturers won't warranty tires with uneven wear ie: camber wear.

And stop buying tires at the grocery store.
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Old 06-24-2009, 09:05 PM   #8
trueno16v
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clean up aisle two, someone spilled milk
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Old 06-24-2009, 09:34 PM   #9
krzyss
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What is wrong with costco?
Where did you do your alignment? You may choose some other place.

Krzys
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Old 06-24-2009, 10:31 PM   #10
Uncle Scotty
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Quote:
Originally Posted by recharged95 View Post
the belts are cracking @ the shoulders. This is happening to both rear tires. Front tires are fine.

In the 1st pic, center, the there's a 'popped bubble' and it appears the belt or something is almost exposed. I'll try to get a clearer pic. The 2nd pic, there along 1/2 the shoulders. It has a look like nails are coming out of the tire if that helps.

Scotty, with the insides wearing, isn't that excessive negative camber: the insides appear wearing faster and the outside shoulders are cracking and it's cracking to a point I can pull rubber chunks off...



NO-NO-NO!!!

toe-toe-toe!!!!!!
-------------------------------------
and those pictures suck and maybe it is too hard to REALLY tell what is up


but it looked TO ME....like there was NO negative camber and the tire was being cornered on the sidewall



if the pic was better---it would be easier...but that looks like(way) insufficient negative camber

Last edited by Uncle Scotty; 06-24-2009 at 10:59 PM.
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Old 06-24-2009, 11:30 PM   #11
recharged95
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You're right Uncle Scotty...

I just realized that when the wifey originally took the car in for rotation a year ago a front wheel shimmy started afterward. Then we took it in for a rebalance 4mos ago and the Costco guys said they "reversed" the tires (took off rim and mounted inside-out) to "fix" the shimmy. It did and the car ran pretty smooth since.

So even though I see the cracks on the "outside", they were really on the "inside" for the last 2.5+ years. And since they're balding on the inner trends now suggests someone either mucked with the alignment@Costco or we got screwed by the alignment shop from the start. CRAP.

Thanks for the analysis & advice guys...And yes, it's back to Kuhmos, and Tire Rack, and a better shop....

Here's some more pics for your enjoyment (both rear tire, outer trend--NOTE the inner trends are balding quickly):



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