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Old 05-09-2015, 06:37 AM   #1
murf OP
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Eh? Tourance tire bead getting all gummy

I have a fairly new tourance , and it has a slow leak that I cannot find,Its bead on one side is all gummy, like the rubber is not cured. You can grab a piece of it with your finger and pull it off. Just at the bead not the sidewall. It has been exposed to oil, but I don't think that would do it . Anybody see that?
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Old 05-09-2015, 06:49 AM   #2
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No, but Metzler should.

Contact the Rep.
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Old 05-09-2015, 06:58 AM   #3
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I mounted one for a friend a couple weeks ago. Not gummy for sure but "Made in China". What was even worse?...my friend bought it in the US to save a few $$$. Tire was already 2 years old when we got it.
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Old 05-09-2015, 07:01 AM   #4
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Cry

Quote:
Originally Posted by GS Addict View Post
No, but Metzler should.

Contact the Rep.

I did contact Metzler, they said to contact the dealer, what dealer? I buy my tires online and install them myself, so I got nowhere with them.
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Old 05-09-2015, 07:15 AM   #5
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So,

who did you buy them from?
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Old 05-09-2015, 07:27 AM   #6
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So,

who did you buy them from?
either Dennis Kirk or Chaparral , I'll have to look it up.
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Old 05-09-2015, 09:57 AM   #7
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Hmmm...now I'm concerned- have Tourances on my DL1K and have had a slow leak in the rear I have not been able to find.....takes weeks to go down but the front stays fine.
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Old 05-09-2015, 10:16 AM   #8
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Hmmm...now I'm concerned- have Tourances on my DL1K and have had a slow leak in the rear I have not been able to find.....takes weeks to go down but the front stays fine.
Take a look ,see if a portion of the bead is all soft and gooey.
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Old 05-09-2015, 10:58 AM   #9
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Hmmm...now I'm concerned- have Tourances on my DL1K and have had a slow leak in the rear I have not been able to find.....takes weeks to go down but the front stays fine.



Make sure you cleaned the seat area of the rim first.

Then check your bad valve stem
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Old 05-09-2015, 03:43 PM   #10
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Somebody probably used petroleum based lube to mount the tire, and it has attacked the rubber.
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Old 05-09-2015, 08:21 PM   #11
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Somebody probably used petroleum based lube to mount the tire, and it has attacked the rubber.
nope, I used soapy water
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Old 05-10-2015, 07:57 AM   #12
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Any possibility that you had a leak from one of your calipers/lines and got brake fluid on the tire?
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Old 05-10-2015, 08:20 AM   #13
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Any possibility that you had a leak from one of your calipers/lines and got brake fluid on the tire?
nope, no brake fluid, anyways that shouldn't soften the rubber should it?

Some chain lube got on it for sure.
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Old 05-13-2015, 01:28 AM   #14
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Rubber is latex, sulphur, carbon black and oil binders mixed and vulcanised. Tyres are rubber with maybe a % of synthetic stuff added.

Prolonged contact with oil will destroy the vulcanising and the rubber will start to break down.
Using soap can start a similar process, as it starts to break down the oil binders.
We used to recover the expensive metal parts from test components using a trichloroethane vapour bath to destroy the oil, the stuff just fell apart after 1/2 hour.

Maybe my little knowledge (ex Dunlop PED uk) is dangerous, but I never use suds for mounting tyres or allow oil to remain on anything rubberish for longer than I can.
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Old 05-13-2015, 06:41 PM   #15
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A lot of tires use silicone instead of carbon black.
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