Tyre changes - o woe is me

meggiedude · 21st July 2011, 12:02

Lo,

Bought a full set of Kenda K20's for my 04 reg 1.8T.

I know there are a number on this forum that rate them and I got them cheap (from here - http://www.allnewtyres.co.uk/tyre-de...%20Car%20Tyres - they were 50quid when I got them, but look to have gone up in price)

Mate of mine has a garage on industrial unit. He knows a motorsport prep garage in the same set of units and arranged for my spangly new tyres to be fitted. They are not tyre specialist, but do change a number of tyres for another motor trader.

All done - great.
Trouble is three of the four tyres have slow punctures. One drops to down to ~8psi in 24hs (i.e flat), and the other two go down, but not at the same rate.
Valves has been swapped on a couple of the tyres - but no difference.

So has anyone seen this issue with Kenda's?
The fitter is suggesting the use of a bead sealant, but in ~28yrs of motoring I've never come across this amount of tyre failure, or the requirement to use a sealant on alloys less than 7yrs old, that have only done 50k and been well looked after.

suffolk boy · 21st July 2011, 12:41

older alloy wheels are prone to this however the edges of the rims need to be cleaned and sealed before fitting as a matter of course in my opinion you need to take them elsewhere and get them fitted correctly

tvpcop · 21st July 2011, 13:57

Its your alloys, not the tyres. The laquer is lifing and letting the air escape. Only cure is a refurb or have the tyres taken off, the rims rubbed down smooth and the tyres re-fitted

Tatts · 21st July 2011, 15:21

Quote:

Originally Posted by suffolk boy

older alloy wheels are prone to this however the edges of the rims need to be cleaned and sealed before fitting as a matter of course in my opinion you need to take them elsewhere and get them fitted correctly

Yup. My local tyre place; take the wheels off, then the tyres off, old balancing weights off, into a wheel washing machine, the part where the tyre seals on the rim gets a wire brushing, and some black gloopy stuff applied.

I've never had to put air in them!

crashmarks · 21st July 2011, 16:03

If you take the worst wheel off, inflate it to 40 psi lay it down flat and spray it around the bead and valve with a plant sprayer conaining water and washing up liquid you should be able to find the leak. Do that on both sides of the wheel and if you get nothing spray around the tyre itself. I agree its unlikely to be the tyres but you never know your luck or unluck.

COLVERT · 21st July 2011, 16:33

Quote:

Originally Posted by meggiedude

Lo,

Bought a full set of Kenda K20's for my 04 reg 1.8T.

I know there are a number on this forum that rate them and I got them cheap (from here - http://www.allnewtyres.co.uk/tyre-de...%20Car%20Tyres - they were 50quid when I got them, but look to have gone up in price)

Mate of mine has a garage on industrial unit. He knows a motorsport prep garage in the same set of units and arranged for my spangly new tyres to be fitted. They are not tyre specialist, but do change a number of tyres for another motor trader.

All done - great.
Trouble is three of the four tyres have slow punctures. One drops to down to ~8psi in 24hs (i.e flat), and the other two go down, but not at the same rate.
Valves has been swapped on a couple of the tyres - but no difference.

So has anyone seen this issue with Kenda's?
The fitter is suggesting the use of a bead sealant, but in ~28yrs of motoring I've never come across this amount of tyre failure, or the requirement to use a sealant on alloys less than 7yrs old, that have only done 50k and been well looked after.

You say you have tried swopping the valves over but surely you have tried to find where the leaks are first !!!!!!

Guesswork NOT required to find a leak.

jcwatrichmond · 22nd July 2011, 07:44

I've had this problem. The Rover alloys are particularly prone to suffer from this with age. The inside edge of the rim corrodes slightly and you lose the smooth surface needed for a good seal. In really bad cases the wheels can be scrap. Just take the tyres off and have the inside edges rubbed smooth and treated before refitting.
The person who fitted the tyres should have noticed this.

JCW

21st July 2011, 12:02	#1
meggiedude Newbie MG ZT Join Date: Jul 2010 Location: Rugby Posts: 29 Thanks: 0 Thanked 0 Times in 0 Posts	Tyre changes - o woe is me Lo, Bought a full set of Kenda K20's for my 04 reg 1.8T. I know there are a number on this forum that rate them and I got them cheap (from here - http://www.allnewtyres.co.uk/tyre-de...%20Car%20Tyres - they were 50quid when I got them, but look to have gone up in price) Mate of mine has a garage on industrial unit. He knows a motorsport prep garage in the same set of units and arranged for my spangly new tyres to be fitted. They are not tyre specialist, but do change a number of tyres for another motor trader. All done - great. Trouble is three of the four tyres have slow punctures. One drops to down to ~8psi in 24hs (i.e flat), and the other two go down, but not at the same rate. Valves has been swapped on a couple of the tyres - but no difference. So has anyone seen this issue with Kenda's? The fitter is suggesting the use of a bead sealant, but in ~28yrs of motoring I've never come across this amount of tyre failure, or the requirement to use a sealant on alloys less than 7yrs old, that have only done 50k and been well looked after. Last edited by meggiedude; 21st July 2011 at 12:19..

21st July 2011, 12:41	#2
suffolk boy This is my second home fiat panda Join Date: Sep 2009 Location: haverhill Posts: 6,720 Thanks: 96 Thanked 586 Times in 526 Posts	older alloy wheels are prone to this however the edges of the rims need to be cleaned and sealed before fitting as a matter of course in my opinion you need to take them elsewhere and get them fitted correctly __________________ fiat panda 1.2 eco

21st July 2011, 13:57	#3
tvpcop Loves to post MG ZT CDTI 135+ Join Date: Mar 2009 Location: Milton Keynes Posts: 434 Thanks: 8 Thanked 1 Time in 1 Post	Its your alloys, not the tyres. The laquer is lifing and letting the air escape. Only cure is a refurb or have the tyres taken off, the rims rubbed down smooth and the tyres re-fitted __________________ MG ZT CDTI+ 135 Drivers Intel pack, spec: full heated leather, parking sensors, auto dip mirror, traffic master, xenons, harmon kardon system, kenwood mp3, bluetooth, refurbed gridspokes, Decat Longlife Stainless exhaust, 190 brake conversion, Synergy2 + Pierburg, intake mod, FK-452's, Jules gold resistor To-do, Leon splitter, have drivers seat re-upholstered to repair rip.............the list never ends!!! [SIGPIC][/SIGPIC]

21st July 2011, 16:03	#5
crashmarks Loves to post Rover 75 Connoisseur SE Tourer Auto Join Date: Feb 2010 Location: Wakefield Posts: 408 Thanks: 12 Thanked 8 Times in 8 Posts	If you take the worst wheel off, inflate it to 40 psi lay it down flat and spray it around the bead and valve with a plant sprayer conaining water and washing up liquid you should be able to find the leak. Do that on both sides of the wheel and if you get nothing spray around the tyre itself. I agree its unlikely to be the tyres but you never know your luck or unluck.

22nd July 2011, 07:44	#7
jcwatrichmond Loves to post Rover 75 1.8T 2003 Club SE Join Date: Jan 2009 Location: Solihull, Posts: 370 Thanks: 0 Thanked 0 Times in 0 Posts	I've had this problem. The Rover alloys are particularly prone to suffer from this with age. The inside edge of the rim corrodes slightly and you lose the smooth surface needed for a good seal. In really bad cases the wheels can be scrap. Just take the tyres off and have the inside edges rubbed smooth and treated before refitting. The person who fitted the tyres should have noticed this. JCW