Tires running on angle - Maintenance and Repair Forum

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Tires running on angle
Wednesday, March 03, 2010 7:02 AM
I have a 95 sunfire gt recently purchased at an immaculate price for the shape it's in. Paid 850 out the door and theres Like no rust ( little on the muffler and drum brakes but thats normal ).

Anyways on to the problem ( maybe not a problem with the gt )

Both of my front tires are chewing tread to the outside of the tire faster then the inside of the tire. its maybe a 5 to 10 % tred difference front outside to inside. When I line my eyes up with both wheels they seem to be pointed a certain way. Both the same angle like somebody changed the toe-in or toe-out on purpose ( if thats what you call it ). just wondering if this is an over all problem or if it is ok for the car?

Please respond back somebody Thank-you!

Re: Tires running on angle
Wednesday, March 03, 2010 7:08 AM
Get it aligned, its probably the camber thats causing it to wear like that. Just my thoughts, but I could be wrong.



Re: Tires running on angle
Wednesday, March 03, 2010 7:26 AM
Yah Id get the alignment checked. Could be a worn out front end part as well causing uneven wear, ball joint, tie rod end, wheel bearing etc. Tire preasure can also cause uneven wear in some cases, running them overfilled or underfilled will do some strange things to tires.


"Straight roads are for fast cars, turns are for fast drivers"-Colin McRae
Re: Tires running on angle
Wednesday, March 03, 2010 8:27 AM
Usually tire pressure will cause it to wear more in the middle (too much pressure) or the outsides (not enough pressure). But I would definately get the front end inspected.



Re: Tires running on angle
Wednesday, March 03, 2010 12:04 PM
I would jack the front end up and check for play in the suspension components, tie rods, ball joints, control arms. If they all seem solid then get an alignment done, if it is a good shop they will tell you if any of your suspension is worn out before they do an alignment. in case you missed it.



Re: Tires running on angle
Wednesday, March 03, 2010 3:12 PM
My experience with nationally advertised repair shops that advertise
service for what you're needing has been poor.

For example, for front end alignment there's a lack of talent
in most of the shops doing this kind of work. Lots of times
you may end up having a "trainee" working on the job.

If you have a taxi service in your locality, and taxis need lots of
maintenance, politely ask around with their personnel. See if
you can find out where the taxis are worked on for "front-end"
jobs. A recommendation from them would mean a lot.
Re: Tires running on angle
Wednesday, March 03, 2010 6:21 PM
if you dont know of a reputable shop in your neighborhood, ask some of your friends. sounds like you need a front end alignment though
Re: Tires running on angle
Thursday, March 04, 2010 9:43 AM
I have done alignments and was once an alignment specialist. From what you describe it sounds like your struts are weak and sagging. That will cause the tires to lean in at the top causing inner tread wear.
Here is a test. Drive your car to a flat area and slowly come to a stop. Get out kneel down in front of your car along the side out away from the car to where you can just view the sides of the front and rear tire together. You will be able to see if the tire is leaning in at the top or if the front of the tire is angled outwards by comparing it to the rear tire. Most rear tires are going to be straight so you are using that as a reference.
If the tire is leaning in at the top you have too much negative camber, and that indicates the struts are worn out. If the tire looks to be angled away from the car that indicates other worn parts like tie rod ends or bushings, and the like.
Another thing you can do is put a 2ft level against the tire vertically. At rest you should have a slight (1/2 bubble maybe a bit more) of lean out away from the car at the top. This is called positive camber.
The other adjustment is call castor and is the angle of the top of the tire in relation to the bottom like a clock face. It can only be read correctly with an alignment machine and this adjustment is what will cause a car to pull one way or the other.
I have seen radial tires cause a pull as well and had customers with new tires have a pull even if the car is in good alignment. Swapped tires from side to side and it either fixes the pull or it pulls the other way. In that case you put those on the rear.

Ok I've rambled on waaaay to much now
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