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Old 06-29-2001, 04:11 PM   #1
jasony
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Question Uneven tire wear... strange...

I know the obvious answer is to get an alignment, but I want to see what you might think anyway:

When rotating my tires, I found that the front tires were worn on the edge. The Left-Hand tire was worn on the left (outside) edge, and the RH tire was worn on the left (inside) edge...

Does this mean I take Right turns too hard? Does it mean I need to go on a diet because of uneven braking/acceleration?

Thanks,
Jason
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Old 06-29-2001, 05:26 PM   #2
jeffg
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no it means that when you are driving straight the wheels are turned slightly. This is why you get an alignment.
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Old 06-29-2001, 05:45 PM   #3
jasony
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I figured it was alignment, I just didn't want to pay for it if it's not the problem... I've never had tires wear on the same side like that... I would think I could feel something wrong with the alignment in the steering, but I guess not.
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Old 06-30-2001, 01:43 PM   #4
Pilot
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Default Alignment? Maybe not

If both tires were wearing on excessively on the inside or outside edge you would probably have alignment problem. If one tire was wearing excessivley you would probably have an alignment problem.

The only way that your tires could wear the way they are wearing due to an alignment problem is if you have excessive negative camber on the right front and excessive positive camber on the left front. This would be easily visible becuase it would require something on the order of -2 degress on the one side and +2 degress on the other. OR your right front wheel toe setting is out and your left fron is just showing the effect of hard cornering.

In the case you describe it sounds like you take a lot of right turns, (maybe a lot of highway ramps on your way to work). I would examine your driving before spending money on an alignment. (a really good one costs between $150 and $300)
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Old 06-30-2001, 02:12 PM   #5
jasony
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Pilot,

That's kind of what I was thinking. I don't think it's camber, unless something is bent on the suspension. I maxed out the camber in the front when I rotated the tires just for fun ( less than -1 degree?). Visibly, neither looked positive before the change, and the negative is barely noticable now.

These tiires have 36,000 on them and will probably be replacing them next spring anyway. (and getting winter tires this winter) So... I don't know if it's worth it to get the alignment... I only need about 8,000 more miles out of these puppies, and that's been my self-prescribed rotation interval anyway...

So, I am going to keep an eye on the tires, but no alignment for now...
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Old 06-30-2001, 07:30 PM   #6
Jason
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It might be the toe. Maybe left side has much toe in and passenger side has excessive toe out.

Anyway, take it to a good aligment shop and it should take care the problem.
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Old 07-01-2001, 07:33 PM   #7
Chaincat
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Yeah, I think it's a toe problem. I think its unlikely that the camber would be off on both wheels to make a pattern like that. Also, I agree with the other guys that posted. Go to your regional I-Club forum and ask for a reputable shop or look in the phone book for an alignment shop that looks like it does racecars. When you take your car in look at the cars the place is serving. I learned that from the I-Club guys in the Bay Area and when I took my car to the shop they recommended there were all sorts of vintage cars, a couple Porshes, a Viper, and a Shelby Cobra, the last two equipped with roll cages. (I don't know if the Cobra was a replica, the place was right in the middle of Si Valley) Anyways, it may be more expensive that Jiffy Lube or whatever but it's totally worth it.

-Brian
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Old 07-02-2001, 02:20 PM   #8
jasony
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Yeah,

On my last car, I made the mistae of getting the cheapest alignment I could find when I got new tires. It was so bad, I took it back. They said their rack wasbroken and had to be fixed, and did it again. Even after two alignments, it wasn't as good as before I went in there...

So, thanks for the advice on that, but I'll still probably wait. I looked at the tread after a few days of driving after the rotation, and the front R tire is pretty even, but the front L seems to still be toward theh outside (I had waxed my tires and was looking at where the dry part is) Whatever...

I've also been running higher tire pressure for a couple weeks. I figured out that the 32/29 they reccommend in the book is pretty flat, so I am at 36/34 right now. I don't know what they were smoking when they came up with their numbers... Maybe for winter though...
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