Do I need a new tire?
06-27-2012, 02:04 AM
#1
Advanced
Thread Starter
Do I need a new tire?
I hit a curb today and got some curb rash on my wheel, but the curb put a gouge on the side wall. It is about 1/2 inch and it doesn't go to the threads. Is this something that needs to be addressed right away or will I be okay for daily driving for a few weeks?
06-27-2012, 10:33 AM
#3
Race Director
No side wall bulge is a good sign.
But I still like to err on the side of caution and I would replace the tire with an identical one. You could ask your dealer's senior tech his advice, but my WAG is he would advise you to replace the tire. And if it is not clear I would agree with him.
If the two tires are original and getting on in years, you might just replace them both. (Porsche considers tire life (based on time) to be 6 years. Check the date the tire was made to determine its age.
If the tires are worn >30%, both should be replaced.
Also, I strongly suspect this bump knocked the alignnent out so I would have the alignment done after the tire or tires replaced. Oh be sure you ask whoever changes/balances the tire to pay particular attention to the wheel's runout. The wheel might be bent and this could render the wheel unusable.
For the alignment, be prepared: remove all dead weight (junk) from the car; have the spare tire (if of course the car came with one) and tool kit present and properly secure; fill up the gas tank.
Sincerely,
Macster.
But I still like to err on the side of caution and I would replace the tire with an identical one. You could ask your dealer's senior tech his advice, but my WAG is he would advise you to replace the tire. And if it is not clear I would agree with him.
If the two tires are original and getting on in years, you might just replace them both. (Porsche considers tire life (based on time) to be 6 years. Check the date the tire was made to determine its age.
If the tires are worn >30%, both should be replaced.
Also, I strongly suspect this bump knocked the alignnent out so I would have the alignment done after the tire or tires replaced. Oh be sure you ask whoever changes/balances the tire to pay particular attention to the wheel's runout. The wheel might be bent and this could render the wheel unusable.
For the alignment, be prepared: remove all dead weight (junk) from the car; have the spare tire (if of course the car came with one) and tool kit present and properly secure; fill up the gas tank.
Sincerely,
Macster.
06-27-2012, 11:37 AM
#4
Advanced
Thread Starter
No side wall bulge is a good sign.
But I still like to err on the side of caution and I would replace the tire with an identical one. You could ask your dealer's senior tech his advice, but my WAG is he would advise you to replace the tire. And if it is not clear I would agree with him.
If the two tires are original and getting on in years, you might just replace them both. (Porsche considers tire life (based on time) to be 6 years. Check the date the tire was made to determine its age.
If the tires are worn >30%, both should be replaced.
Also, I strongly suspect this bump knocked the alignnent out so I would have the alignment done after the tire or tires replaced. Oh be sure you ask whoever changes/balances the tire to pay particular attention to the wheel's runout. The wheel might be bent and this could render the wheel unusable.
For the alignment, be prepared: remove all dead weight (junk) from the car; have the spare tire (if of course the car came with one) and tool kit present and properly secure; fill up the gas tank.
Sincerely,
Macster.
But I still like to err on the side of caution and I would replace the tire with an identical one. You could ask your dealer's senior tech his advice, but my WAG is he would advise you to replace the tire. And if it is not clear I would agree with him.
If the two tires are original and getting on in years, you might just replace them both. (Porsche considers tire life (based on time) to be 6 years. Check the date the tire was made to determine its age.
If the tires are worn >30%, both should be replaced.
Also, I strongly suspect this bump knocked the alignnent out so I would have the alignment done after the tire or tires replaced. Oh be sure you ask whoever changes/balances the tire to pay particular attention to the wheel's runout. The wheel might be bent and this could render the wheel unusable.
For the alignment, be prepared: remove all dead weight (junk) from the car; have the spare tire (if of course the car came with one) and tool kit present and properly secure; fill up the gas tank.
Sincerely,
Macster.
Yeah, hopefully the wheel isn't bent. I think damage is just on the corner, but it is hard to tell until the tire is off the wheel.
06-27-2012, 11:41 AM
#5
Banned
Join Date: May 2008
Location: Arlington Heights, IL
Posts: 7,299
Likes: 0
Received 10 Likes
on
8 Posts
Tires are cheap, compared to sheet metal. Replace the tire. Your alignment will be out, too. Keep the damaged tire as an emergency spare. A rear tire on a 911, with 5,000 miles, is about 1/2 worn. A quality wheel repair for the curb rash will be about $150.
Last edited by No HTwo O; 06-27-2012 at 01:29 PM.
06-27-2012, 01:27 PM
#6
Nordschleife Master
What is your safety worth? If nothing, then no worries....
What is your car worth? If more than a set of tires, there you go
What is your car worth? If more than a set of tires, there you go
Trending Topics
06-27-2012, 11:40 PM
#9
Race Director
5K miles given my experience with my 2 cars is about 25% of the tire's life, so the existing tire is worn say 25%. This is borderline. When my Turbo need a new front tire from a deer collision the insurance company paid to replace both front tires even though the tires were down just about 15%.
So there's some kind of argument that even 30% is not always acceptable. IIRC though this is the wear amount difference Porsche states that can or should exist between tires. Any more and both tires should be replaced.
What kind of tire life do you get with your car and its rear tires? If you say 20K you might squeak by. Anything less...
Sincerely,
Macster.
06-27-2012, 11:48 PM
#10
At 5 months old the tires are obviously not due to be replaced due to old age.
5K miles given my experience with my 2 cars is about 25% of the tire's life, so the existing tire is worn say 25%. This is borderline. When my Turbo need a new front tire from a deer collision the insurance company paid to replace both front tires even though the tires were down just about 15%.
So there's some kind of argument that even 30% is not always acceptable. IIRC though this is the wear amount difference Porsche states that can or should exist between tires. Any more and both tires should be replaced.
What kind of tire life do you get with your car and its rear tires? If you say 20K you might squeak by. Anything less...
Sincerely,
Macster.
5K miles given my experience with my 2 cars is about 25% of the tire's life, so the existing tire is worn say 25%. This is borderline. When my Turbo need a new front tire from a deer collision the insurance company paid to replace both front tires even though the tires were down just about 15%.
So there's some kind of argument that even 30% is not always acceptable. IIRC though this is the wear amount difference Porsche states that can or should exist between tires. Any more and both tires should be replaced.
What kind of tire life do you get with your car and its rear tires? If you say 20K you might squeak by. Anything less...
Sincerely,
Macster.
06-28-2012, 01:01 AM
#11
Advanced
Thread Starter
At 5 months old the tires are obviously not due to be replaced due to old age.
5K miles given my experience with my 2 cars is about 25% of the tire's life, so the existing tire is worn say 25%. This is borderline. When my Turbo need a new front tire from a deer collision the insurance company paid to replace both front tires even though the tires were down just about 15%.
So there's some kind of argument that even 30% is not always acceptable. IIRC though this is the wear amount difference Porsche states that can or should exist between tires. Any more and both tires should be replaced.
What kind of tire life do you get with your car and its rear tires? If you say 20K you might squeak by. Anything less...
Sincerely,
Macster.
5K miles given my experience with my 2 cars is about 25% of the tire's life, so the existing tire is worn say 25%. This is borderline. When my Turbo need a new front tire from a deer collision the insurance company paid to replace both front tires even though the tires were down just about 15%.
So there's some kind of argument that even 30% is not always acceptable. IIRC though this is the wear amount difference Porsche states that can or should exist between tires. Any more and both tires should be replaced.
What kind of tire life do you get with your car and its rear tires? If you say 20K you might squeak by. Anything less...
Sincerely,
Macster.
