Date: 03-06-20  Time: 07:00 AM

Author Topic: Tyre problem  (Read 411 times)

Choppa

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Tyre problem
« on: 13 April 2020, 05:19:24 PM »
Hi there I'm having a bit bother with my front tyre,it keeps going flat . I've taken it to the garage but they couldn't find anything wrong with it but replaced the valve just in case, but the tyre is still going down. The wheel looks straight no sign of damage could it be a dodgy tyre ,still has plenty of tread left so I'm reluctant to replace it.
Just wondering if anyone has had similar issues and what was the outcome,cheers.

BBROWN1664

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Re: Tyre problem
« Reply #1 on: 13 April 2020, 05:30:57 PM »
How long does it take to go down?
It could be the bead leaking - See the thread below.


https://foc-u.co.uk/index.php?topic=26065.0
« Last Edit: 13 April 2020, 05:31:58 PM by BBROWN1664 »
Another ex-Fazer rider that is a foccer again

Gnasher

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Re: Tyre problem
« Reply #2 on: 13 April 2020, 06:29:50 PM »
How long does it take to go down?
It could be the bead leaking - See the thread below.


https://foc-u.co.uk/index.php?topic=26065.0


 :agree


Yep, this isn't a new problem.  Some tyre places have worn kit, inexperienced in a rush staff and/or use cheap tyre soap or the wrong type, when I say "type" they use other stuff in it's place which is cheaper and reacts with areas of damage on the rim bead.  They also don't clean the bead before fitting a new tyre, any old soap or oxidisation of surface damage is just soaped over, after a few tyre changes it will cause slow leaks. 
Later

Choppa

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Re: Tyre problem
« Reply #3 on: 13 April 2020, 07:54:29 PM »
I pumped the tyre up yesterday (36psi) then checked today and it was 15 psi.
The tyres were on when I bought the bike last year and had a slow puncture nothing drastic but I took it to the local garage to get it sorted. When the guy took the tyre off  it was filled with tyre weld so he give it a good clean , changed the valve and checked again for any leaks , everything seemed ok.
After reading the link you've sent I'm wondering if he's cleaned the tyre and rim enough  as it was caked in weld or is it an old tyre I'll have to check the date next time I'm in the garage.

BBROWN1664

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Re: Tyre problem
« Reply #4 on: 13 April 2020, 08:10:04 PM »
If it was full of tyre weld, that suggests there was a puncture at some point. The fitter may not have found the actual puncture (may have been more than one) that the tyre weld was hiding. Most fitters wont fix a tyre once its been filled with that gunk. May be time to get a new tyre
Another ex-Fazer rider that is a foccer again

Choppa

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Re: Tyre problem
« Reply #5 on: 13 April 2020, 08:29:08 PM »
Aye think you could be right new tyre time . I've been pricing them today £52  on eBay not to bad i suppose

g5guzzi

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Re: Tyre problem
« Reply #6 on: 13 April 2020, 09:14:36 PM »
It might be worth  coating the tyre and wheel with a strong solution of water and fairy liquid and wait for a few minutes this usually shows up air leaks.  slightly over inflating the tyre can help.
Malc
« Last Edit: 13 April 2020, 09:15:57 PM by g5guzzi »

Choppa

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Re: Tyre problem
« Reply #7 on: 13 April 2020, 10:22:33 PM »
It's worth a shot , it's not like I can ride it at the minute anyway.

robby boy

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Re: Tyre problem
« Reply #8 on: 13 April 2020, 11:38:22 PM »
It might be worth  coating the tyre and wheel with a strong solution of water and fairy liquid and wait for a few minutes this usually shows up air leaks.  slightly over inflating the tyre can help.
Malc


If you use warm water it sticks to the tyre better than cold.
If you worried about falling off your bike, you'd never get on.

Gnasher

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Re: Tyre problem
« Reply #9 on: 13 April 2020, 11:40:52 PM »
The tyres were on when I bought the bike last year and had a slow puncture nothing drastic but I took it to the local garage to get it sorted. When the guy took the tyre off  it was filled with tyre weld so he give it a good clean , changed the valve and checked again for any leaks , everything seemed ok.


Because the wheel had tyre weld in it and a slow puncture, with no obvious issue with the tyre itself, suggests there could be a fault with the wheel.  It's possible the wheel is either porous, which can and does happen the aluminium over time or it could be cracked/fractured both of which will give you a slow puncture.  Check the bead and tyre again if it's still going down you need to suspect one of the above.     
Later

darrsi

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Re: Tyre problem
« Reply #10 on: 14 April 2020, 02:03:34 PM »
36psi to 15psi in one day is quite drastic, so i would've thought a leak would be really easy to locate with some warm soapy water.
More people are born because of alcohol than will ever die from it.

Choppa

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Re: Tyre problem
« Reply #11 on: 25 April 2020, 02:45:49 PM »
Finally got round to checking the tyre with hot soapy water and there was a 6 inch strip around the rim which was bubbling up. I took it to my local garage and he's cleaned the rim up again and happy to report no leakage ,cost £5 happy days.
Before I fit the wheel I'm going to set about the exhaust headers with some harpic has anyone used this? Do you dilute it or just rub it straight on from the bottle?

robbo

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Re: Tyre problem
« Reply #12 on: 25 April 2020, 04:18:40 PM »
Make sure it's Harpic 10x Power Plus. Yeah, use it neat, maybe pour some in an old jar or suitable container and use an old paint brush. Rubber gloves and eyeshields would be a good idea, to be on the safe side.

darrsi

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Re: Tyre problem
« Reply #13 on: 26 April 2020, 09:42:53 AM »
Make sure it's Harpic 10x Power Plus. Yeah, use it neat, maybe pour some in an old jar or suitable container and use an old paint brush. Rubber gloves and eyeshields would be a good idea, to be on the safe side.


 :agree


I did it a couple of weeks ago, i used it neat but with a ball of steel wool, so it's abrasive but won't scratch the pipes at all. It's a very effective treatment, just clean any crud of the pipes first, then apply and leave on for 20-30mins before hosing off.


Seriously though, use 2 pairs of rubber gloves, and wear eye protection of some sort. Get that stuff in your eye, and you'll really regret it.
« Last Edit: 26 April 2020, 02:01:52 PM by darrsi »
More people are born because of alcohol than will ever die from it.

Choppa

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Re: Tyre problem
« Reply #14 on: 26 April 2020, 10:38:21 AM »
Thanks, never thought about gloves and glasses 8)