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Hi All,
I recently changed out my rear brake pads/rotors and once wheels were off the car, noted that the inner side of both tires had excessive and asymmetrical wear. Hopefully the pics I took will be able to show what I am referring to.
My first thought was that there was something rubbing against the tires but I looked in the wheel well and could not find anything. Could excessive camber do this?
I immediately took them to Discount Tire and had them changed out to new OEM tires and then took car in for laser alignment; the alignment tech said that they were not all that off.
prior to re-alignment, the rear camber was -2.2 for left and -1.9 for right; after, 0.16 and 0.15
Any help is appreciated; I just don't want the same problem to happen again to the new set of rears.
Your rear camber is now too low. Also, your tires are gone. Just a product of having a sports car. Toe could have been off. I think the rear camber is now too low.
In the future, you need to be more diligent with checking your tire wear. That's severe cording. You got lucky and avoided disaster. Ya gotta get down in there and look. You can cheat a little, and stick your camera phone down there and snap a few pics.
On the 911, even in-spec alignment will tend to wear the inside of the rear tires faster than the rest of the tire. Though yours is definitely excessive.
Everything said so far is probably right, but the wear looks funny to me: very much on the inner corner but only some extra wear on the inner third of the tread. Maybe pressures also off?
Thanks for the responses guys- def appreciate it. Here are some responses:
The tires have about 33k miles on them including about 3 track days
Yes I am at fault for not being more vigilant regarding doing my own tire inspections- I definitely got lucky here and will most certainly pay more attention. For what it's worth, I had taken the car into the dealer about 6 weeks prior for some targa bar rattling which they covered under warranty and they had performed a general car "inspection" showing the need for brake pad replacement but said the tires were ok. Lesson learned now.
The front tires were replaced last year due to wear but did not have the crazy inside wear the rears did.
I had a complete laser alignment done at Brake Masters by a guy who was recommended to me by a buddy who is a gear head.
The toe was 0.13 LR and 0.22 RR before and 0.16 and 0.15 after.
Unfortunately the Discount Tire guys messed up my center lock lug tool and nut which they will replace with OEM....ugh what a pain!
I think I will just take the car back to the dealer for the labor to have the CL nuts replaced.
It was the three track days that did that. 911's are heavy on the rear and the high side loads at speed cause that cording. If you buy a dedicated set of track wheels and tires, you will see that exact same thing occur. They always outside cord. If you alter your alignment for a track bias (which you can do) it will make the car annoyingly twitchy in everyday driving. Tires are consumables as are rotors and pads at the track, just have to pay to play is all. Nothing is wrong with your car and eventually you will want a dedicated set of track/tires wheels if you continue, because track tires can be less expensive and you won't bugger up your nice street set of rubber.
No kidding! You call up Michelin, they may even give you a free set! Those tires are done at 20K to 22K almost all the time, then again you pushed them way-way-way past replacement. They were probably hazardous to drive on the last 10K.
02-02-2020, 04:43 PM
weird tire wear?
