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Scalloped tire wear, what to do?


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9 replies to this topic

#1 soobyfan

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Posted 01 December 2005 - 11:47 PM

I have a '96 OBW, 2.2L, 5 sp manual transmission. I recently put on my snow tires for the winter and found my right rear tire had excessive wear on the inside edge. The wear was uneven, and on only about 1/3 of the circumference of the tire. The wear was so bad the ply's are showing.

I have been reading the threads on the viscous coupling and am worried this may be the cause. I should also mention I am not noticing binding when in tight turns. Note: The car is new to me, I do not know if all 4 tires were within 1/4" in circumference.

1. How can I functionally check the viscous coupling?

2. If the VC is bad can I drive it for a couple of weeks without ruining my snow tires?

3. Any other ideas on what to look for?

#2 1 Lucky Texan

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Posted 02 December 2005 - 08:10 AM

I have a '96 OBW, 2.2L, 5 sp manual transmission. I recently put on my snow tires for the winter and found my right rear tire had excessive wear on the inside edge. The wear was uneven, and on only about 1/3 of the circumference of the tire. The wear was so bad the ply's are showing.

I have been reading the threads on the viscous coupling and am worried this may be the cause. I should also mention I am not noticing binding when in tight turns. Note: The car is new to me, I do not know if all 4 tires were within 1/4" in circumference.

1. How can I functionally check the viscous coupling?

2. If the VC is bad can I drive it for a couple of weeks without ruining my snow tires?

3. Any other ideas on what to look for?


I think scalloped wear is most commonly associated with out-of-balance wheels and/or weak strut issues. I'd try to confirm the wheel hasn't thrown a weight and is true and balanced. The car is old enough it seems to possibly have a bad strut as well, so see if that corner seems 'bouncy' or has other problems.

#3 Tiny Clark

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Posted 02 December 2005 - 08:37 AM

Yea, second vote for the strut.

#4 Strakes

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Posted 02 December 2005 - 10:11 AM

Check the balance and then the strut. My wife's 93 chewed through set of tires because the struts were bad. If it's the strut...try and replace all 4 at the same time and get an alignment too.

#5 nipper

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Posted 02 December 2005 - 12:27 PM

i vote for a bad strut, bad wheel alignmnet, or bad bushing in the rear.

Do a search on torque bind, if you had it you would know it.


nipper

#6 soobyfan

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Posted 03 December 2005 - 12:17 AM

Thanks for the input, I appreciate it.

#7 soobyfan

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Posted 03 December 2005 - 01:44 PM

Nipper,

When you refer to a bushing for the rear strut are you talking about the bushing in the strut mount?

Thanks.

#8 All_talk

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Posted 03 December 2005 - 01:59 PM

Sure could be the strut, but the fact that its not all the way around the tire makes me think its an unbalanced or bent wheel. Could also just be a bum tire, I've had tires damaged from an impact that didn't blow at the time, but failed just as you described months later.

Gary

#9 LosDiosDeVerde86

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Posted 04 December 2005 - 12:09 PM

I have a '96 OBW, 2.2L, 5 sp manual transmission. I recently put on my snow tires for the winter and found my right rear tire had excessive wear on the inside edge. The wear was uneven, and on only about 1/3 of the circumference of the tire. The wear was so bad the ply's are showing.

I have been reading the threads on the viscous coupling and am worried this may be the cause. I should also mention I am not noticing binding when in tight turns. Note: The car is new to me, I do not know if all 4 tires were within 1/4" in circumference.

1. How can I functionally check the viscous coupling?

2. If the VC is bad can I drive it for a couple of weeks without ruining my snow tires?

3. Any other ideas on what to look for?


yeah, i'm sure it's not that big a deal.

get some new rubbers, keep then balanced, get an alignment, and keep them rotated

#10 nipper

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Posted 04 December 2005 - 02:27 PM

Nipper,

When you refer to a bushing for the rear strut are you talking about the bushing in the strut mount?

Thanks.


could be a bushing not in the strut, but on one of the control arms .. just something else to look at, as i like to list all the possabilities.

nipper




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