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Old 10-07-2007, 01:29 PM   #1
subaru_terrence
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Default Negative Camber problem

Few weeks ago, when I was doing oil changed, the mechanic at the dealership told me to go in and showed me how bad of my negative camber of my rear tires. He told me to fix the problem asap and replace the tires. They rotated those 2 rear tires to the front. They had less tread than the front tires for some reason. I thought I would able to use those tires until I put on my winters.
However, on friday night after I finished my midterm, I was cruising on hwy and I noticed there's something wrong with my front right side, so I decided to get off the hwy as soon as the next exit came...unfortunately, I couldnt.....my front right rim was touching the ground already and I had to pull over on the shoulder. Got off the car...my 3/4 of my tire was completely gone. All I had left was my sidewalls...rim was totally damaged.

When I got home, put on my stockers and I realized my front left tire which was originally from the rear had some siginificantly damaged too.




Here is the thing, after I lowered my car, I got my alignment done already. But there is still some negative camber. I am just wondering what can I do to fix my rear negative camber problem on my 02 legacy L

This is my alignment result:
Left Front: -1.31 degree camber
3.16 caster
0 Toe

Right Front: - 0.91 degree camber
3.02 degree caster
0.01 degree toe


Left Rear: - 0.62 degree camber
0.01 degree toe

Right Rear: -.76 degree camber
0 toe

Is it true that I cant put camber bolts in the rear?
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Last edited by subaru_terrence; 10-07-2007 at 02:49 PM.
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Old 10-07-2007, 02:26 PM   #2
mattwalters
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(1) The 1.1* of cross-camber in the front is pretty bad. That's a problem - did the shop just run out of adjustment or what?
(2) 3/4* of negative camber in the rear shouldn't cause noticeably accelerated tire wear... are you sure it hasn't gotten worse for some reason?
(3) If you want full toe / camber adjustment in the rear, you need adjustable lateral links. I have Whitelines and they're very trick / effective.

-Matt
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Old 10-07-2007, 02:49 PM   #3
subaru_terrence
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I realized i had a typo...
right front camber is -0.91
but BEFORE..it was -0.82
so basically..it went worse :S

That means I have to fix the front negative camber as well.....
how do i fix that problem?
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Old 10-07-2007, 06:46 PM   #4
IronMonkeyL255
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that really isn't that bad negative. I run -1 degree all the way around and my tires are wearing completely evenly.

They should be able to get the LF closer to -1

How long had it been between alignments? Toe out would wear the tires like that a whole lot faster than camber......
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Old 10-07-2007, 07:52 PM   #5
subaru_terrence
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I got my alignment done in March...but I didnt put on those RE070s until May...
I used those tires for roughly about 13,000km max
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Old 10-08-2007, 09:59 AM   #6
Patrick Olsen
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Quote:
Originally Posted by subaru_terrence View Post
Here is the thing, after I lowered my car, I got my alignment done already. But there is still some negative camber. I am just wondering what can I do to fix my rear negative camber problem on my 02 legacy L
First, negative camber is not a "problem". Negative camber is a necessity if you want your car to handle. The front camber you have is pretty good - when you get it aligned again (preferably at a different shop) I would have the shop make the right front match the left front at -1.3. That's a good number for street driving.

Quote:
Originally Posted by jonesboydamnit View Post
(2) 3/4* of negative camber in the rear shouldn't cause noticeably accelerated tire wear... are you sure it hasn't gotten worse for some reason?
I agree, those alignment numbers look pretty good, and shouldn't be causing horrible tire wear like that. Either the alignment print-out they gave you is wrong, or something has knocked your alignment out of whack since you had that one done. I run -2 up front and -1.5 in the rear and with the toe zeroed at all 4 corners I have no tire wear issues at all. I'd be willing to bet that your toe is off - why that didn't show up on the alignment sheet, I don't know.

Quote:
Originally Posted by jonesboydamnit View Post
(3) If you want full toe / camber adjustment in the rear, you need adjustable lateral links. I have Whitelines and they're very trick / effective.
The '00+ Legacys have a multi-link rear, not a MacPherson strut like the Imprezas and older Legacys, so the various replacement lateral links don't apply.

Quote:
Originally Posted by subaru_terrence View Post
That means I have to fix the front negative camber as well.....
how do i fix that problem?
What problem? Your front camber numbers are fine (other than the fact they're mismatched by 0.4, which is just a sign the alignment tech was lazy.)

Quote:
Originally Posted by IronMonkeyL255 View Post
How long had it been between alignments? Toe out would wear the tires like that a whole lot faster than camber......
Agreed. That wear appears to be a significant toe problem. I highly recommend you get another alignment done.

Pat Olsen
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Old 10-09-2007, 02:09 AM   #7
subaru_terrence
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I just drove on hwy for about 45 mins....I realized that if my car went pass 100km/h, my steering wheel has little vibration...and when I brake...my steering wheel actually shakes :S

Is that mean it screwed up my alignment?
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Old 10-09-2007, 07:41 AM   #8
Patrick Olsen
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No, that means you have uneven brake pad deposits on your rotors and/or one of your wheels isn't balanced right.

Can I suggest that you update your User CP so everyone can easily see where you are and what you're driving?
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Old 10-09-2007, 08:52 AM   #9
legacy1907
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wouldnt the wheel shake during brake mean that his rotors could be warped?
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Old 10-09-2007, 09:36 AM   #10
subaru_terrence
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Quote:
Originally Posted by Patrick Olsen View Post
No, that means you have uneven brake pad deposits on your rotors and/or one of your wheels isn't balanced right.

Can I suggest that you update your User CP so everyone can easily see where you are and what you're driving?
I knew my brake pads have roughly 30% or may be less left. I just didnt get why the steering wheel shaked AFTER my tire blew off the hwy.

Let me try to put my another set of winter rims this weekend and see if I would have the same problem again.
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Old 10-09-2007, 10:31 AM   #11
jey
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Quote:
Originally Posted by legacy1907 View Post
wouldnt the wheel shake during brake mean that his rotors could be warped?
Could be, but not likely. "Rotor warping" is often a myth:

http://www.stoptech.com/tech_info/wp...rakedisk.shtml
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