Awiner
Member
Those bolts are factory torqued to 62.6928 ft-lb (85 newton meters). 80 is over torqued and you need to be careful as it’s threaded into the aluminum sub frame.
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Plaid 21” rear tire woes - factory defect?
- Thread starter KOL2000
- Start date
Awiner
Member
It’s about not placing excess stress in the sun frame threadings. You don’t have to have to replace a subframe.
If you want I can send you the Tesla service manual document about replacing the arms / bolts with torque specs and warnings.
BTW, the fore upper control arm which is forward and a little lower than the aft would also have to be shimmed out or the toe will move inward a lot for just a little bit of outward movement on the aft upper link.
Fortunately the refresh 2021+ suspension design has a huge amount of rear toe adjustment range unlike the previous design which had a very limited range, but make no mistake, the toe must be adjusted if you lengthen just the aft upper control arm.
Fortunately the refresh 2021+ suspension design has a huge amount of rear toe adjustment range unlike the previous design which had a very limited range, but make no mistake, the toe must be adjusted if you lengthen just the aft upper control arm.
Hmmm, so if you don't shim the fore upper control arm, will you introduce more bump steer with these shim kits and adjustable control arms?
Too complicated to say without more analysis of the placement and lengths of each of the upper and lower control arms.
I always like to point people to this video when discussing bump steer....which btw gets massively more complicated when talking about front suspension because turning dynamically changes the tie rod length relative to the control arms which means the amount of bump steer as the wheel goes up or down will change based on the steering angle and NOT evenly between the left and front tires.
We provide our shims and the instructions necessary to keep your same toe without an alignment visit. Factory bolts are overkill long. They are actually mid grade bolts designed to fail before other components. The bolt is designed fail before the subframe and arm.
Camber sensitivities are not linear and every setup is a compromise in one way or another. We push things back to where they should have come from the factory to a region where everything is better where the car actually operates.
Yea so I noticed I was slowly losing air in both of my rear tires (2022 Model S Plaid w/ 10k miles) Here is a picture of the inner edge of my tire I took this morning after speaking with the mobile service guy in my area. I asked about there being a camber issue and he basically told me that they wont replace this and I would need to get a new tire (he recommended the all weather tire if it was available for the 21" wheel). I am a little confused with how I proceed here. Suppose I will start with reading 50 pages in this thread.
Hayseed_MS
Spreader of "Endless Non Sequitur"
Just took off my PZero winters after 16k miles, Look great no uneven wear and insides look great. About 6/32's left according to tire place, We discussed this thread and they see no signs of this on the Pzeros.
They put back on my PS4S. Tire place said they saw no signs of this happening on these and they are wearing evenly. They have approx 6/32-7/32" left on each. If I remember correctly, there is 7-10k miles on these.
They put back on my PS4S. Tire place said they saw no signs of this happening on these and they are wearing evenly. They have approx 6/32-7/32" left on each. If I remember correctly, there is 7-10k miles on these.
n2mb_racing
Active Member
Save the tires and contact Michelin at their 800 number for a credit under warranty. You'll probably have to bring the tires to a discount tire or similar. Tesla won't help.
When i get one I will be happy to. Still strategizing on what to actually do with my mobile service guy's advice.
^^^^^^^^^^^^^This^^^^^^^^^^^^
Tesla has next to zero support for Michelin's chronic tire failures, but they'll gladly sell you a new set of rear tires for well over $1k . . . as they have for so many already.
To get new tires at Michelin's expense simply file a claim here, or via their telephone number:
Michelin Tire Support & Michelin Customer Support | Michelin
Need Michelin tire support or Michelin customer support? Access our contact information here, and get the answers to all of your Michelin questions.
www.michelinman.com
Eventually you'll get a set of replacement Michelin OEM tires (they are often on back order--hmmm, I wonder why?) and you should only have to pay a token amount of money for mounting and balancing the new tires, usually around $40 or $50 total.
*****Of greater importance: someone is going to get hurt when one of these tires lets go at high speed.*****
These tires need to be off the road and replaced, via a NHTSA safety recall, ASAP. To get a recall NHTSA needs DATA; let's help get them the data they need as only a small percentage of people will follow thru--most people just buy new tires and move on. PLEASE file a formal input here; it only takes a minute or two:
Report a Safety Problem | NHTSA
File a complaint with NHTSA if you experienced a vehicle, tire, car seat or equipment safety problem that could be a safety defect.
Thanks!
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