Going Flat
Thread Starter
Le Mans Master
Joined: Dec 2004
Posts: 5,230
Likes: 419
Going Flat
I have a tire pressure issue. My 67 has factory bolt-on wheels with 205/75/15 Diamondback tires. Come wintertime (in Michigan), when stored in "The Bag", one tire (and only one) goes flat. Yet come spring, this same tire holds whatever air I pump into it - and holds it well for the rest of the year. Any ideas as to what causes the tire to go flat when in storage? When stored in the bag, it is in an unheated but attached 2-car garage. Is it the cold causing the rim to shrink more than the tire? Thoughts?
Race Director
Joined: Sep 2005
Posts: 13,850
Likes: 1,869
From: Birmingham Mi
I have a tire pressure issue. My 67 has factory bolt-on wheels with 205/75/15 Diamondback tires. Come wintertime (in Michigan), when stored in "The Bag", one tire (and only one) goes flat. Yet come spring, this same tire holds whatever air I pump into it - and holds it well for the rest of the year. Any ideas as to what causes the tire to go flat when in storage? When stored in the bag, it is in an unheated but attached 2-car garage. Is it the cold causing the rim to shrink more than the tire? Thoughts?
Sell the wheels to me and buy a good repo set.
Rick
Le Mans Master
Joined: Feb 2012
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From: Western Massachusetts
2024 C2 of the Year Finalist - Unmodified
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Yup. If not that its the valve stem. I chased that last fall on my original KH's on my 65.
Dan
Team Owner
Joined: Mar 2003
Posts: 31,047
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From: Wilmington N C
St. Jude Donor '14 thru '26
This was my experience too, for years. I did also do the clean up of the rim approach w/a brillo pad. Didn't help. So, finally, I gave up, and bought a new set of tires (the old ones needed changed after so many years anyway). That "fixed" the problem.
Thread Starter
Le Mans Master
Joined: Dec 2004
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Drifting
Joined: Dec 2006
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From: Bronx New York
Team Owner
Joined: Mar 2003
Posts: 26,118
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From: Greenville, Indiana
Instead of guessing where the leak is, why not submerge the wheel/tire in a tub of water like a tire shop does and look for bubbles? Like John said, bead sealer is a quick and dirty fix sometimes for a bead leak.
If there is a leak through porous aluminum, there's a sealer for that too but I've not used it.
If there is a leak through porous aluminum, there's a sealer for that too but I've not used it.
Last edited by MikeM; Feb 9, 2016 at 06:45 AM.
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