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Rashed rim from tire roll???

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Old 06-21-2018, 12:24 AM
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tshort
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Angry Rashed rim from tire roll???

OK, so I’m a new 991 driver, driving a loaner while my 996 is in the shop. The 991 is a base PDK car, with stock 20” wheels and P-Zeros - about 13k miles on the odometer.

After a spirited rive in my rented 991 I noticed the right rear wheel was rashed for about 6” on the rim, and there were paint chips pretty much the rest of the way around it. I couldn’t see any evidence of scuffing anywhere on the sidewall beyond the tread line. I checked the tire pressure and it was a solid 40psi.

So now I’m sitting here wondering:
1. How in the heck did that happen?
2. Should I report it to Hertz

Thoughts? WTF?



Last edited by tshort; 06-21-2018 at 04:32 PM. Reason: Add/change
Old 06-21-2018, 01:12 AM
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_RS_
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Pics ?
Old 06-21-2018, 01:23 AM
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groundhog
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At 40 PSI you haven't rolled the tires - you've hit something like a curb.
Old 06-21-2018, 07:25 AM
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tstafford
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You think you may have rolled the tire so much that the side of the wheel hit the road surface? Not on a public road right?
Old 06-21-2018, 08:31 AM
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worf928
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Originally Posted by groundhog
At 40 PSI you haven't rolled the tires - you've hit something like a curb.
This—^

The 991 is a lot wider that your 996. Muscle memory for the corners can betray you.
Old 06-21-2018, 09:23 AM
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LexVan
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Now can you imagine the thread and title, had the dealership damaged your rim while in for service, and not the other way around?
Old 06-21-2018, 10:08 AM
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awrryan
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I would think traction would give way before a street tire would roll that much to expose the rim and you shouldn't be driving like that on a public road anyway. Sounds like it's your problem, not the dealer's problem.
Old 06-21-2018, 10:14 AM
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STG
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Once gain, OP is MIA .... happens a lot with these posts. Gets everyone excited and offers NO more details or pics.
Old 06-21-2018, 10:41 AM
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911boy
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Originally Posted by LexVan
Now can you imagine the thread and title, had the dealership damaged your rim while in for service, and not the other way around?
OMG! Would go on for days............
Would be weeks if happened at Costco Service!
Old 06-21-2018, 11:45 AM
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tshort
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Wow you guys get busy early - I’m still waking up. More details:
No, I didn’t hit a curb, or anything else. This particular corner is a block from my home and I travel it regularly. There are no bumps, lumps, holes, or anything else to hit. It is unusually wide, giving you plenty of room to play with.
This morning I checked the tire pressure again to get a cold pressure reading and it came in at 39psi - stone cold (ambient temp in the garage overnight was probably in the 60s).
The information plate on the driver side door jam indicates a pressure of 45psi (which, honestly, I was surprised by how high that is - hadn’t seen a recommended pressure that high - and that was for front and rear).

Here’s a picture of the damaged wheel:

No longer pristine :-(
​​​​​​​

Last edited by tshort; 06-21-2018 at 04:33 PM.
Old 06-21-2018, 11:51 AM
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STG
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Originally Posted by tshort
Wow you guys get busy early - I’m still waking up. More details:
No, I didn’t hit a curb, or anything else. This particular corner is a block from my home and I travel it regularly. There are no bumps, lumps, holes, or anything else to hit. It is unusually wide, giving you plenty of room to play with.
This morning I checked the tire pressure again to get a cold pressure reading and it came in at 39psi - stone cold (ambient temp in the garage overnight was probably in the 60s).
The information plate on the driver side door jam indicates a pressure of 45psi (which, honestly, I was surprised by how high that is - hadn’t seen a recommended pressure that high - and that was for front and rear).
As I said initially, I have a 996 with stock 18” wheels and pretty sticky tires. I have pushed it into this same corner dozens of times. Sometimes I get it just right and get a little slide with no traction management intervention, other times I can definitely feel the traction management intervening. Even running track pressures (ie, a little lower than “recommended”) while running DE events I’ve never seen a tire/wheel do this on my 996 or my G-50 Carerra (the latter has 16” wheels and much higher sidewalls, so not surprising).

Here’s a picture of the damaged wheel:​​​​​​​

No longer pristine :-(
​​​​​​​


You're sure this wasn't like this before picking up??

That's A HUGE wheel rash. What the???
Old 06-21-2018, 11:57 AM
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STG
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Is there a chunk of wheel missing on the sidewall on bottom of pic?
Old 06-21-2018, 11:58 AM
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Fracture
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none of that looks very fresh and there is no 'directional' pattern that indicates a curbing
Old 06-21-2018, 12:00 PM
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Pmorritt
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That’s a lot of damage. I’m no expert but I guess it’s possible but never experienced or had anyone mentioned tire roll on the street before. I don’t see any damage to the Pirelli. I would think if it was curb rash the raised lip of the tire would show damage also. [img]blob:https://rennlist.com/da675c7b-d576-4165-9408-72a253f9f3e5[/img]
Old 06-21-2018, 12:01 PM
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STG
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I think was damaged before the loaner was picked up.


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