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Join Date: Jan 2002
Location: VA
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Alignment Issue?
Since I bought my SC about 3 months ago, it has handled rock solid, always tracking straight and true. However my SO-3�s were pretty well worn and cupped. I thought they were very noisy as well. Tire noise turned out to be a bad front passenger side bearing.
So after a bit of research, I went with Avon M500's from Tire Rack, 205/55 and 245/45 to fit my 7's & 9's. Had them mounted and balanced by one of the better Porsche shops here in Charlotte. As soon as I pulled out onto the road, I could tell the car was drifting to the left, like classic "radial pull." A few days later when fixing the bearing I swapped the front tires to see if that made any difference. No joy. Today, I had the car re-aligned. It was barely out of spec and now it is dead on. And it still drifts left! So when I got home from the alignment, I swapped rears and still the car drifts left even running on the right lane crown. Common sense would now tell me that it is the chassis some way, some how. But why would the Bridgestone's be dead straight if there was an alignment / chassis issue? And if it was the tires why wouldn't rotating them side to side make it pull the opposite way? Ideas anyone?
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'06 Cayman S '16 Cayenne '08 Audi RS 4 |
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07-18-2006, 02:14 PM
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Automotive Monomaniac
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I have 2,500 miles on some Avon M500's on my G35 (Tire Rack too). No issues whatsoever with the new rubber - great tires.
Do you have a caliper hanging on one side? Feel the wheels and see if one is warmer than the others after driving.
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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07-18-2006, 02:19 PM
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durn for'ner
Join Date: Feb 2005
Location: South of Sweden
Posts: 17,090
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Hmm.. your worn tires always pulled straight. After leaving you car at a reputable Porsche shop it pulls to the left. Something happened at the shop arguably. Whats their comments ?
Or am I misunderstanding something ?
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Markus Resident Fluffer Carrera '85 |
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07-18-2006, 02:21 PM
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Southern Class & Sass
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Do you have a print out of the alignment specs?
be advised that "in-spec" is a pretty broad window. yes, even for a 911. What this means is the responses you get will be pretty moot unless you can post actual alignment numbers.
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Dixie Bradenton, FL 2013 Camaro ZL1 |
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07-18-2006, 02:33 PM
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Markus, the alignment was still decent when it left the shop. I just had it dialed in better today.
I am wondering if there may be a hanging caliper or something like that. Are there any other symptoms of a hanging caliper, like noise? This really has be baffeled.
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'06 Cayman S '16 Cayenne '08 Audi RS 4 |
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07-18-2006, 02:33 PM
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Location: VA
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...........Left Right
Camber 0.7 0.6 Caster 4.9 5.2 Toe 11.2 12.1 Capt Carrera, is this what you were looking for?
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'06 Cayman S '16 Cayenne '08 Audi RS 4 |
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07-18-2006, 02:41 PM
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My Camaro
