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thebrad 04-28-2008 09:49 PM

Tire over inflation problem
 
I've been running 60psi for the past few weeks and noticed this tonight:
http://i19.photobucket.com/albums/b1...n/IMG_1381.jpg

So deflate or see how long I can go without issue? :p

SVOboy 04-28-2008 10:02 PM

What is it? I can't really tell, does the tire dip in?

johnpr 04-28-2008 10:14 PM

if the tire is just dipping in (like a valley) then it is nothing to worry about, that is where the material inside the tire overlaps and so it restricts the outward expansion of the sidewall. if that is a bulge that we are seeing than the plies in the sidewall might be seperating or have an internal leak at which point you would need the tires to be replaced

Cd 04-28-2008 10:18 PM

I had two tires split at the valve stem. One actually started to leak so badly that I had to change the tire.
My max PSI is rated at 44PSI on the sidewall, and I was running 55 PSI, but on the day of the tire failure, I filled them to around 55 or so ........... and found out later how inaccurate that tire guages can be. I was actually at around 65- 70 + PSI.
( So it's a good idea to check the pressure with more than one guage. )

In my particular case, both tires failed at the valve stem. In your case, it appears to be the tire itself. I would deflate to normal levels and have a tire shop check the tire.
Better to do that then to put you life, as well as others in danger for a few pennies worth of gas.

I have seen similar marks on tires before that were at normal PSI levels. It may be common actually , and something that you only notice in certain lighting conditions.
I actually had this sort of mark on the tires that I used before my current set.
It always bothered me.
I would get a second opinion from an expert.

Stay safe !

Cd 04-28-2008 10:20 PM

60 PSI ? What is the max. sidewall rating ?

basjoos 04-28-2008 10:57 PM

All of my Sumitomo tires have had that bump on their sides from day one, just an artifact of the manufacturing process. I've been running 60 psi in them since I got them last June with no problems.

thebrad 04-29-2008 12:53 AM

Sidewall max temperature is 51 psi.
The two pressure gauges I have read the same amount, albeit they are both rather shoddy.

Sorry I couldn't manage to get a better picture of it, but yes it's just a little dip in the sidewall that runs the height of the tire.

johnpr 04-29-2008 04:29 AM

nothing to worry about then, i've seen thousands of tires do that (used to work in a tire shop), its all in how its made and not a defect.

COMP 04-29-2008 05:30 AM

a good gauge is a must ,,, i like to look at cold and warm/hot readings on my truck

MetroMPG 04-29-2008 09:58 AM

Quote:

Originally Posted by .Cd (Post 22091)
I had two tires split at the valve stem. ...
In my particular case, both tires failed at the valve stem.

I'd like to correct the terminology a bit: I wouldn't say that was a tire failure at all. The valve stem and tires themselves are physically separate items. Sounds like a valve stem failure, not a tire failure.

---

My Accord also had a set of tires with the "dip" in all four sidewalls. I don't think the Goodyears on the Flea have them though.


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