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Mar 31, 2009 17:15:12 GMT
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just had some tyres swapped over on to another set of slightly narrower rims (7x13 to 6x13). tyres are 175/50/13 and need some advice.
i put one of the rims on the car and the weight of the car made the tyre hiss from the bead. took the wheel off and reinflated to about 40 psi.its loosing about 1psi per day.
options -
1) should i go back to the garage? can they do anything other than slap some more lube on. the alloys were good around the bead - no flakey paint etc
2)scrap the tyre? is the bead fubar'ed
3) as the tyre has gone from a 7x13 to a 6x3 rims, does it just need to be kept fully/highly inflated a while to settle down?
4)can i put some silicon sealant (or similar) around the bead area to close up the bead?
cheers
matt
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Mar 31, 2009 17:25:03 GMT
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Definitely take them back! A correctly fitted tyre should not leak nearly that fast. Personally I would be as polite as possible but I would not leave until they'd been re-fitted (and re-balanced) for free and didn't leak any more (get them to test each tyre in a leak tank).
The only other thing which could be going on is that your alloy wheels might be porous, although this isn't likely to cause the hissing sound that you described.
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Mar 31, 2009 18:39:48 GMT
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i don't think its shoddy work by the garage - it a company i use a lot. the guy races so understands tyres. when i picked them up he did say that one tyre didn't want to play ball at first.
alloys are nearly new so doubt they are porous.
as the tyres have been off (and possibly damaged and they were slightly stretched on the previous rims, i wonder if that could be the issue?
no probs taking the rim back but n ot sure if they can do anything other than slap some lube around the bead/reseat the tyre.
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joe90
Yorkshire and The Humber
Posts: 1,027 
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Mar 31, 2009 18:48:22 GMT
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The tyre will need the bead breaking and some kind of sealing compound putting on first then reinflating, black gloss paint works great and the bead will rebreak easily unlike using glue which is hard to break.
Bryan
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bazzateer
Posted a lot
Imping along sans Vogue
Posts: 3,653
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Mar 31, 2009 19:18:03 GMT
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The tyre place should have some proper sealer rather than paint. Just take it back, if they're any good they'll sort it for you for free.
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1968 Singer Chamois Sport
1972 Sunbeam Imp Sport
1976 Datsun 260Z 2+2
1998 Peugeot Boxer Pilote motorhome
2003 Rover 75 1.8 Club SE (daily)
2006 MG ZT 190+ (another daily)
2007 BMW 530d Touring M Sport (tow car)
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forgot to mention that this morning the tyre was about 30psi . I pressed on the side wall and got a hiss from the bead area  . i've been suggested to try inflating fully whilst having a ratchet strap around the tyre to force the bead on to the rim have a token pic of the car in question:-  that quick lift is ex-Patrick Motors racing team |
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bazzateer
Posted a lot
Imping along sans Vogue
Posts: 3,653
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The lube they use is exactly that, a lubricant to stop the machine shredding the rubber. Once the tyre is on the rim but before it is inflated they should 'paint' the sealant around both beads and possibly on the rim as well, then inflate as normal and the sealant will be a nice tight 'fit' betwixt tyre and rim.
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1968 Singer Chamois Sport
1972 Sunbeam Imp Sport
1976 Datsun 260Z 2+2
1998 Peugeot Boxer Pilote motorhome
2003 Rover 75 1.8 Club SE (daily)
2006 MG ZT 190+ (another daily)
2007 BMW 530d Touring M Sport (tow car)
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This is interesting and almost identical to my symptoms so I hope you don't mind if I throw this in the mix... one of my cosmics doesn't seem to seal properly either. Not quite as bad as poking it and it hisses, but not brilliant. It's been a while since I had them fitted so I won't really be able to go back. Worth having them reseated? or chucking some of that bodge-it-up, puncture-no-more type sealant in and hope for the best? The Cosmics are 30 or so years old so I really wouldn't be surprised if it isn't exactly perfect...
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...proper medallion man chest wig motoring. |
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Lay the wheel flat on the ground and pour a small amount of water around where the tyre meets the rim. A stream of bubbles will indicate if the tyre isnt sealing properly. If the rims are corroded, the tyre needs removed and the rim rubbed down to provide a flat sealing surface.
If its just a small leak it is often possible to shift the tyre ever so slightly to reseal it by giving the sidewall a sharp tap with a mallet next to where the leak is. don't go mullering it with a sledgehammer, just a decent, sharp blow is all thats needed.
Remember to check both sides of the wheel for leaks.
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1986 Panda 4x4.
1990 Metro Sport.
1999 Ford Escort estate.
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bortaf
Posted a lot
Posts: 4,549
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Just take it back and get to put some bead sealant on it, it's runny black stuff like latex  sometimes moving the tyre round the rim will sort it, at worst you may have a damaged/kinked/dented bead (the metal inside the bead). |
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R.I.P photobucket
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