Notices
2003-2009 Nissan 350Z

Air pressure loss in tires

Thread Tools
 
Search this Thread
 
Old Jun 29, 2006 | 07:31 AM
  #1  
Baron14y's Avatar
Baron14y
Thread Starter
Registered User
 
Joined: Apr 2006
Posts: 9
Likes: 0
From: Palm Bay, Fl.
Unhappy Air pressure loss in tires

My 2003 with stock wheels and tires loses 1 - 3 psi per tire every week. Have never had this problem with any of the 5 other Z's I've had. Not talking about pressure going down when cold. This is a loss of pressure. Can't find any leaks. Is this something peculiar with low profile tires? Anyone have any thoughts as to the problem?
Reply
Old Jun 29, 2006 | 07:32 AM
  #2  
Anomaly's Avatar
Anomaly
New Member
20 Year Member
iTrader: (7)
 
Joined: Dec 2004
Posts: 3,066
Likes: 16
From: Disneyland
Default

I have the same issue with my passenger side front tire. I suspect it might be a problem with the valve stem. Not certain, though...
Reply
Old Jun 29, 2006 | 07:56 AM
  #3  
WYZIWYG's Avatar
WYZIWYG
New Member
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 8,736
Likes: 208
From: BEHIND YOU!! BEHIND YOU!!!
Default

I was going to post something similar but I'll just respond...
I had the same problems with the stock Potenzas, it seemed I would lose air each week. As soon as I upgraded to some Kumho all season tires, this problem has disappeared. I only check the gauge from time to time, but I haven't aired up my tires since I had these installed last fall. Maybe you should buy a better grade of tire and see what happens.
Hope this helps....
Reply
Old Jun 29, 2006 | 08:13 AM
  #4  
davidv's Avatar
davidv
Registered User
iTrader: (2)
 
Joined: Jun 2004
Posts: 42,753
Likes: 11
From: Tucson, AZ
Default

Welcome.

All tires leak. Adding a couple of pounds each week is OK. If one tire looses, say, 5 pounds, then you may have a problem with that tire.
Reply
Old Jun 29, 2006 | 08:22 AM
  #5  
mikeg8r's Avatar
mikeg8r
New Member
iTrader: (2)
 
Joined: Jan 2006
Posts: 771
Likes: 0
From: Venice, CA
Default

yeah, all tires will lose air eventually. Just buy a small air compressor for your garage and you'll be good to go. I picked one up with a digital guage and auto stop at pep boys for like $40.
Reply
Old Jun 29, 2006 | 09:11 AM
  #6  
VO...'s Avatar
VO...
Administrator
iTrader: (25)
 
Joined: Jun 2005
Posts: 58,609
Likes: 2,747
From: Down Under & Dirty
Default

Originally Posted by Baron14y
My 2003 with stock wheels and tires loses 1 - 3 psi per tire every week. Have never had this problem with any of the 5 other Z's I've had. Not talking about pressure going down when cold. This is a loss of pressure. Can't find any leaks. Is this something peculiar with low profile tires? Anyone have any thoughts as to the problem?
One of my wheels had the same problem. I took it to Discount tire and had em' fill it with a few extra pounds of air, then submerge it in a water tub. The leak was at the rate of about 1 bubble per minute, but enough to leak out about 3 psi per week. The tech dismounted the tire and coated the outer lip of the rim with a chaulky substance to fill in all the pores. I haven't had a problem since.
Reply
Old Jun 29, 2006 | 09:16 AM
  #7  
Ztalker's Avatar
Ztalker
Registered User
 
Joined: Sep 2005
Posts: 7,951
Likes: 0
From: USA
Default

try fill the tires with 100% nitrogen next time to slow down the leaks. Costco has nitrogen.
Reply
Old Jun 29, 2006 | 03:58 PM
  #8  
uncutZ00's Avatar
uncutZ00
Registered User
 
Joined: Feb 2006
Posts: 159
Likes: 0
From: usa
Default

do you have a turbo kit? if you do, you might need to hook up the turbo to yoru tires, that way all that extra exhaust air can keep your tires going even if you have a leak. its nissan new run flat tire system.
Reply
Old Jun 30, 2006 | 07:13 AM
  #9  
Baron14y's Avatar
Baron14y
Thread Starter
Registered User
 
Joined: Apr 2006
Posts: 9
Likes: 0
From: Palm Bay, Fl.
Default

Originally Posted by vo7848
One of my wheels had the same problem. I took it to Discount tire and had em' fill it with a few extra pounds of air, then submerge it in a water tub. The leak was at the rate of about 1 bubble per minute, but enough to leak out about 3 psi per week. The tech dismounted the tire and coated the outer lip of the rim with a chaulky substance to fill in all the pores. I haven't had a problem since.
Thanks for the info. That sounds like a definite possibility since the rims did have some curb rash. I'll probably live with the pressure loss since I've only got about another 5 -6000 miles on the Continentals that are on it now. When I get new tires, I'll make sure they clean up the rims and maybe put some of that unknown stuff on it to seal the pores.
Reply
Old Jun 30, 2006 | 07:31 AM
  #10  
97supratt's Avatar
97supratt
Registered User
iTrader: (61)
 
Joined: Nov 2004
Posts: 5,034
Likes: 3
From: Glendale California
Default

They say the air we pump which is mostly carbon dioxide, a bit of oxygen and nitrogen will leak through some tires. The tire doesnt fully seal all the air, if you dont want your pressure to come down, you pump nitrogen like the big rigs do. Nitrogen stays inside the tire and doesnt leak out.
Reply
Old Jun 30, 2006 | 07:42 AM
  #11  
stein's Avatar
stein
Registered User
iTrader: (3)
 
Joined: Jan 2006
Posts: 5,856
Likes: 0
From: Virginia Beach, VA
Default

Originally Posted by mikeg8r
yeah, all tires will lose air eventually. Just buy a small air compressor for your garage and you'll be good to go. I picked one up with a digital guage and auto stop at pep boys for like $40.
Having an air compressor is still a PITA! I have to start it up, fill the tire, then drain the compressor for 1 tire. And it's only one tires that does this not all, so not all tires do this. I suspect there is something in the tire like a nail or what not.
Reply
Old Jun 30, 2006 | 07:43 AM
  #12  
bwaclawc's Avatar
bwaclawc
Registered User
 
Joined: Jun 2006
Posts: 12
Likes: 0
From: Texas
Default

Yeah, my rear passanger tire leaks very slowly too. I think I will probably put on better tires, once I'm done burning these into oblivion.
Reply
Old Jun 30, 2006 | 07:44 AM
  #13  
VO...'s Avatar
VO...
Administrator
iTrader: (25)
 
Joined: Jun 2005
Posts: 58,609
Likes: 2,747
From: Down Under & Dirty
Default

Originally Posted by Ztalker
try fill the tires with 100% nitrogen next time to slow down the leaks. Costco has nitrogen.
I always thought Nitrogen was use because of its non-explosive characteristics. At least that what we used it for on military aircraft.
Reply
Old Jun 30, 2006 | 07:50 AM
  #14  
97supratt's Avatar
97supratt
Registered User
iTrader: (61)
 
Joined: Nov 2004
Posts: 5,034
Likes: 3
From: Glendale California
Default

Originally Posted by vo7848
I always thought Nitrogen was use because of its non-explosive characteristics. At least that what we used it for on military aircraft.
Maybe, but I remember a ad I saw in a big rig magazine that demonstrated the ability of nitrogen to stay inside the tire. It actually works because the oxygen is lighter and can penetrate through rubber through time but nitrogen cant.

Heres a good article, http://www.findarticles.com/p/articl...15/ai_97872906.

Last edited by 97supratt; Jun 30, 2006 at 07:52 AM.
Reply
Old Jun 30, 2006 | 08:02 AM
  #15  
VO...'s Avatar
VO...
Administrator
iTrader: (25)
 
Joined: Jun 2005
Posts: 58,609
Likes: 2,747
From: Down Under & Dirty
Default

Originally Posted by 97supratt
Maybe, but I remember a ad I saw in a big rig magazine that demonstrated the ability of nitrogen to stay inside the tire. It actually works because the oxygen is lighter and can penetrate through rubber through time but nitrogen cant.

Heres a good article, http://www.findarticles.com/p/articl...15/ai_97872906.
Good find.

In 1772, Daniel Rutherford discovered something that he called "mephitic air." We now know it as nitrogen. In 2003, David Connaughton has an idea regarding nitrogen. He would like to see every tire in America filled with it. Connaughton is national OEM manager of Parker Hannifin's Filtration and Separation Div. (Cleveland, OH], where, not coincidentally, they make nitrogen inflation systems. Connaughton says that as the pressurized air used to fill tires slowly permeates tire walls and escapes, it not only leads to underinflation, but the oxygen portion of the air reacts with the chemical bonds in the rubber, weakening it and reducing tire life. This can lead to a panoply of bad results, from poor mileage to on-the-road blowouts. Inflating tires with pure nitrogen mitigates many of these problems. It is an inert gas that does not react with rubber, so tires maintain proper pressure longer; and run cooler, minimizing the possibility of blowouts. Connaughton says that tires filled with nitrogen can last up to 2 5% longer, which translates into $100,000 in savings for a truck fleet of 50 with 900 wheel positions.
Reply
Old Jun 30, 2006 | 09:59 AM
  #16  
mikeg8r's Avatar
mikeg8r
New Member
iTrader: (2)
 
Joined: Jan 2006
Posts: 771
Likes: 0
From: Venice, CA
Default

Originally Posted by 97supratt
Maybe, but I remember a ad I saw in a big rig magazine that demonstrated the ability of nitrogen to stay inside the tire. It actually works because the oxygen is lighter and can penetrate through rubber through time but nitrogen cant.

Heres a good article, http://www.findarticles.com/p/articl...15/ai_97872906.
FYI, I belive costco uses nitrogen to fill up their tires.
Reply
Old Jun 30, 2006 | 10:27 AM
  #17  
uncutZ00's Avatar
uncutZ00
Registered User
 
Joined: Feb 2006
Posts: 159
Likes: 0
From: usa
Default

replace your tires with big round blocks of cheese.
Reply
Old Jul 3, 2006 | 09:59 AM
  #18  
cbrflyer919's Avatar
cbrflyer919
New Member
iTrader: (13)
 
Joined: Sep 2004
Posts: 3,170
Likes: 0
From: DC
Default

Originally Posted by uncutZ00
replace your tires with big round blocks of cheese.
PLEASE BAN THIS GUY!!!!!!!! PLEASSSSSSSSSSSSSSSE
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
apex locator
Autocross/Road
10
Jul 23, 2021 02:27 AM
350Z_Al
Exterior & Interior
133
Oct 29, 2020 07:44 PM
ablaine
2003-2009 Nissan 350Z
51
Nov 29, 2016 10:13 AM




All times are GMT -8. The time now is 10:04 PM.