Run Flats
Thread Starter
6th Gear
Joined: Apr 2009
Posts: 6
Likes: 0
From: San Jose CA
Run Flats
Forgive me if this has been previously discussed. I am on the second set of tires on my 08 coupe and am beginning to wonder if all run flats are leaky? The original Goodyear's leaked and now the Firestone's are leaking....5-6 psi per week. In both instances they tires and stems were thoroughly checked. As run flats cannot be legally repaired (or so I'm told), I used a can of flat repair on one of the Goodyears and that helped considerably. Any one else out there experiencing this problem?
Thanks,
Dave
Thanks,
Dave
Melting Slicks
Joined: Jul 2007
Posts: 2,063
Likes: 17
From: Lee's Summit MO
No problems here. Mine have been holding 30 since I bought the car in July.
Take a spray bottle with soapy water and spray around the "bead" on the inside and outside to check for leaks there.
Do you have nitrogen fill?
Take a spray bottle with soapy water and spray around the "bead" on the inside and outside to check for leaks there.
Do you have nitrogen fill?
Burning Brakes
Joined: Jun 2006
Posts: 913
Likes: 36
From: Scottsdale Arizona
Forgive me if this has been previously discussed. I am on the second set of tires on my 08 coupe and am beginning to wonder if all run flats are leaky? The original Goodyear's leaked and now the Firestone's are leaking....5-6 psi per week. In both instances they tires and stems were thoroughly checked. As run flats cannot be legally repaired (or so I'm told), I used a can of flat repair on one of the Goodyears and that helped considerably. Any one else out there experiencing this problem?
Thanks,
Dave
Thanks,
Dave
Melting Slicks
Joined: Sep 2007
Posts: 2,045
Likes: 3
From: Indy IN
I've lost a few psi over a period of months from all 4 tires. Nowhere near 5-6psi per week obviously. That isn't right that you are losing that much air per week. Is your car exposed to large differences in outside temperatures?
Instructor
Joined: Dec 2009
Posts: 134
Likes: 2
From: Murrieta California
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
look in the faq stickies above C6 Gen. there is a correct tightening of both the stem nut and the cap. do it too far and it allows air to leak.
one of many threads (note post 3, too): http://forums.corvetteforum.com/c6-c...stem-nuts.html
one of many threads (note post 3, too): http://forums.corvetteforum.com/c6-c...stem-nuts.html
Last edited by AORoads; Oct 18, 2010 at 08:55 AM.
Burning Brakes
Joined: Oct 2009
Posts: 1,231
Likes: 1
From: Paramus NJ
Forgive me if this has been previously discussed. I am on the second set of tires on my 08 coupe and am beginning to wonder if all run flats are leaky? The original Goodyear's leaked and now the Firestone's are leaking....5-6 psi per week. In both instances they tires and stems were thoroughly checked. As run flats cannot be legally repaired (or so I'm told), I used a can of flat repair on one of the Goodyears and that helped considerably. Any one else out there experiencing this problem?
Thanks,
Dave
Thanks,
Dave
Race Director
Joined: May 2008
Posts: 10,742
Likes: 629
From: Manheim Pennsylvania
My tire pressures hold, just have to adjust for temperature variations. I check my tires about once a month, more often in Spring and Fall. Add or subtract about two pounds, yes when temperatures climb tire pressures increase. The change is about one pound for every five degrees of temperature change.
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Le Mans Master
Joined: Sep 2004
Posts: 5,116
Likes: 5
From: Livonia MI
I've had my car for 4 year's now and never found the run flat's to act any different air wise than my other car's. Had the dealer replace the rear's a few year's ago, and still no leakage problem's. Also, not sure where you heard about not repairing a run flat, as several forum member's have done it with a proper plug and interior patch done by a tire dealer. Think the official factory policy is having this done no more than twice on a single tire, though.
Melting Slicks
Joined: Oct 2010
Posts: 2,314
Likes: 4
From: Cape May, NJ; Guntersville, AL; Orange Beach, AL
If it was just one wheel I would say its most likely the wheel but being all 4 sounds like someone isn't mounting them correctly.
Thread Starter
6th Gear
Joined: Apr 2009
Posts: 6
Likes: 0
From: San Jose CA
Leaking Run Flats
Whoever would have thought to tighten the valve stems???? Thanks to all of you who shared your knowledge. All of my valve stems were very loose (the girl friend suspects a few other things as well)...tightened them up to 60 pounds....problem solved!
Cheers,
Dave
Cheers,
Dave
