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Wheel damage at valve stems
I had new tires put on my car at a very reputable local shop yesterday. At that time, the valve stems were also replaced and a full alignment was done. I didn't notice this when I picked up my car, but last night I took a close look at my wheels and found this around all of the valve stems:
 At first glance, it really doesn't look like scratches (a strange pattern), and I can't feel anything with my finger. Does anyone have any idea how this could have happened? Is there a tool that is used to remove the old valve stems that could have caused this? I'm almost positive this wasn't there before I had the tires/valve stems done - I surely would have noticed. I'll contact the shop today, but I wanted to get some opinions on this before I did. Can this be easily buffed out/repaired?
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2012 Cayman R - Black/Black 1995 993 - Polar Silver |
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10-02-2009, 08:32 AM
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Somatic Negative Optimist
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You say that this is on all 4 wheels/stems?
If so, I suspect the scratches came from the procedure of replacing the stems and the shop would recognize this and make good.. Is the finish anodized or polished? If it's polished, the stems can be removed and the area polished. Of course, it requires the tires to come off etc. Had a similar experience and the shop refinished the wheels. Good luck.
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats.  Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
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10-02-2009, 08:55 AM
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Spoke to the shop and it turns out they didn't replace the valve stems at all (they use rubber, and these are the original metal ones), even though the invoice stated that they did. And they would have cut them out from the back anyway, so this is a mystery. I guess it's possible that these marks were there before and I never noticed (they do look quite a bit worse in the photo than they do in person). I believe the wheels are clear-coated so the marks probably can't be easily polished out.
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2012 Cayman R - Black/Black 1995 993 - Polar Silver Last edited by logan2z; 10-02-2009 at 09:03 AM.. |
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10-02-2009, 09:00 AM
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Quote:
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10-02-2009, 09:02 AM
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Somatic Negative Optimist
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Clear-coat explains it.
Water/detergent creeps under the clear-coat over time; have a little of it on my Honda wheels. Sounds like the shop is innocent, 
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats. Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ".
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10-02-2009, 09:03 AM
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most ruf wheels that are clear coated get that all over them.
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10-02-2009, 09:16 AM
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Bummer. I've been using P21S wheel cleaner to clean my wheels. I clean them probably once ever 2-3 weeks (I don't drive the car daily). Are certain detergents worse than others for this, or is this just a fact of life with clear-coated wheels?
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2012 Cayman R - Black/Black 1995 993 - Polar Silver |
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10-02-2009, 09:30 AM
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The clear coat 'edge' at the valvestem hole gets moisture under the clear coat over time.
2 piece wheels? Are those socket (?) marks around those bolts? Is that rust? That would worry me more, but it's hard to tell from the pic. |
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10-02-2009, 09:44 AM
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10-02-2009, 09:53 AM
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10-02-2009, 09:58 AM
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This is corrosion under the clearcoat. Typical of the Speedline for Porsche whels (which these are).
No going around that, even with perfectly maintained wheels. Solution is strip and polish, and then keep polished without clearcoat. |
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10-02-2009, 11:06 AM
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2012 Cayman R - Black/Black 1995 993 - Polar Silver |
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10-02-2009, 11:19 AM
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Quantum Mechanic
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I wondered about this thing
So I have these gizmos on my wheels - are they just to support the valve stems at high speeds ? Never seen them before.
 Mark Petry Bainbridge Island, WA 81 SC |
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10-02-2009, 11:57 AM
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Yes they are. Valve supports, that is.
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10-02-2009, 12:06 PM
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ME 262 (SOLD)
Colibri
Gas Mizer
Mileage King
Dog Bus
Sally
Babe
