Tire vibration?
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,543
Likes: 381
From: Strongsville, OH
2016 C2 of the Year Finalist
Tire vibration?
72 all original convertible that sat in one spot with new tires for over six years. While driving it over 50mph the car vibrates badly. I've had the tires balanced by Goodyear and they don't see any visual defects or runout or roundness problems. There is no improvement since balancing and rotating. There were no vibration problems before storing six years ago so I don't think it is driveline or engine related.
Is it possible for radial tires to have flat spots and still balance perfectly?
Last edited by dkleather; Oct 6, 2016 at 10:36 PM.
Racer
Joined: Mar 2014
Posts: 316
Likes: 36
From: Machesney Park IL
I would think so, depending on the balancer. A spin balancer would see weight, and balance for that. A road force balancer places a roller on the tire, and checks as if the tire was on the ground.
As for a flat spot, you might see it as the tire is spinning during the balance, but the only real way I can think of to catch it, would be a dial indicator.
As for a flat spot, you might see it as the tire is spinning during the balance, but the only real way I can think of to catch it, would be a dial indicator.
Team Owner
Joined: Sep 2013
Posts: 36,415
Likes: 6,905
From: New Or-leens Loo-z-anna
To "find a flat spot"......
Jack one wheel off the concrete.....lay a flat object under the wheel....lower the wheel until it is approx. 1/8" from contacting the surface of the flat object.........
Rotate the wheel slowly by hand and notice/place a piece of tape labeled G on the area of the tire tread that is the Greatest distance from the flat surface.
Place another piece of tape labeled C on the tire tread where it is the CLOSEST to the flat surface.
This will help you see if the tire is out of round/or has a flat spot.
Test the other wheels the same way.
Jack one wheel off the concrete.....lay a flat object under the wheel....lower the wheel until it is approx. 1/8" from contacting the surface of the flat object.........
Rotate the wheel slowly by hand and notice/place a piece of tape labeled G on the area of the tire tread that is the Greatest distance from the flat surface.
Place another piece of tape labeled C on the tire tread where it is the CLOSEST to the flat surface.
This will help you see if the tire is out of round/or has a flat spot.
Test the other wheels the same way.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,028
From: eastern NC
My son left his Acura with us while he was deployed over seas and after 6 months the tires (Bridgestones) had flat spotted. Now if it sits for a month, you have to drive it about 50 miles before the flat spots go away.
That's an absolutely gorgeous '72 Corvette by the way...
Good luck... GUSTO
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,543
Likes: 381
From: Strongsville, OH
2016 C2 of the Year Finalist
Gusto, Thanks for the information and the compliment on the car. That's the original factory top and shining paint you see.
Last edited by dkleather; Oct 7, 2016 at 09:37 AM.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,028
From: eastern NC
http://www.kelseytire.com/pages/preformancetires3.html
Good luck... GUSTO
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,543
Likes: 381
From: Strongsville, OH
2016 C2 of the Year Finalist
Wow, that thing is certainly worthy of a new set of Eagle GT's (P255/60–R15).
http://www.kelseytire.com/pages/preformancetires3.html
Good luck... GUSTO
http://www.kelseytire.com/pages/preformancetires3.html
Good luck... GUSTO
Dave
Last edited by dkleather; Oct 7, 2016 at 10:02 AM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette
Pouria Savadkouei
How Likely Are These Five 2027 Corvette Rumors to Be True?
Brett Foote
9 Best Corvettes You Can Buy for Half Price (& 1 You Should NEVER Buy!)
Joe Kucinski
8 Very Best Corvettes of Amelia Island 2026
Joe Kucinski
Top 10 WORST Corvette Engineering Failures of All Time!
Joe Kucinski
10 Records the C8 Corvette Generation Has SMASHED (& 1 Glaring Failure)
Joe Kucinski
7 Wildest Corvette Concepts Ever Made
Brett Foote
Le Mans Master
Joined: May 2006
Posts: 5,814
Likes: 414
From: Pittsburgh suburbs Pa.
You have to wonder why tires don't last anymore. Years ago they did it right and the only time you had to replace tires is when the tread wore out. They could sit for twenty years and no problems . No date worries. Cheap products and greed are the problems. 