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[Dusty]

The spare tyre on my miggy seems to lose 10psi every day. I have taken it to Kwik fit 3 times now but they can find no leak.

They said it is possible it is a fault in the wheel it self.

When tubeless tyres first came about, my old dad always put tubes in them, "just to be on the safe side " he said.

As Kwikfit cannot stop the tyre going down, I have asked them if it is possible to put a tube in.

They refused point blank saying it was dangerous.

Is this true? Anyone had any experience of this? Thanks

Maybe should have posted this in general help, but too late now

[Marks DTM Calib]

If its loosing that much air then it should be easy enough to find the puncture......you got a paddling pool or pond?

A favourite is the valve!

[Bandit127]

As far as I know, the tyre construction is so different that an inner tube in a tubeless tyre can generate catastrophic amounts of heat through friction between the two.

You could always try a tin of Tyre Weld... If you ever change the tyre, you will need to let them know due to the H&S implications I believe (probably urban myth, but they sure don't like it).

[Dusty]

If its loosing that much air then it should be easy enough to find the puncture......you got a paddling pool or pond?

A favourite is the valve!

The valve was changed and Kwikfit did immerse the whole tyre in water 3 times.

I wonder if it is more to do with the abilities of the Kwikfit fitter who looked remarkably like the evolutionary "missing link"

[Dusty]

As far as I know, the tyre construction is so different that an inner tube in a tubeless tyre can generate catastrophic amounts of heat through friction between the two.

You could always try a tin of Tyre Weld... If you ever change the tyre, you will need to let them know due to the H&S implications I believe (probably urban myth, but they sure don't like it).

I might try that if all else fails

[Field Marshal Dr. Opti]

Sometimes the kids at Kwikfit are'nt the best for problem solving. Could always try somewhere else Dusty  

[Vamps]

Am I right in thinking that the wheels, assuming they are alloy, can be porous, I have had this problem before, and used tyreweld.

[iainb]

Hi ya, I bet as its your spare they didnt clean the bead.
What I sugest is you get an idependent tyre company to strip the tyre off and wire brush the bead or seat of the rim. To loose 10psi says you have several leak points

[Entwood]

10 psi is a lot to lose in that time  I'd be inclined to pump it up to 50 psi and immerse it myself. If no leaks are apparent then .. take it down to 15 psi and try again, bead seal leaks sometimes are worse at lower pressures than high. If that still doesn't work take it to a proper tyre place .. not KF tosssers.

HTH

[lee4206]

try mixing some washing up liquid and water in a spay bottle and spray over the tyre including the rim and valve. leave it for a few mins and you'll probably find out where its leaking from.  If its losing 10psi a day its quite a big leak so id put it down to the numpty thats checking it.

Lee (kw*k fit employee ) but a good one.

[albitz]

even if the wheel  is pourous,if its losing 10psi per day it would probably still show bubbles from the wheel when submersed.As already said the kwikfit diagnostics department is probably the main reason why you cant get to the bottom of it.  :-/

[Andy B]

The spare tyre on my ......

What's the spare wheel? Steel or alloy?

[Pete Elite]

  When i was a tyre fitter many moons ago we did what Iainb said and gave the wheel and tyre bead a good clean and then ran some puncture repair glue around the rim to aid the seal .

  Another reason i wouldn't have a tube in my tyres is because if you do get a puncture they tend to go down straight away unlike a tubeless which goes down slower as long as the puncturing item isn't to big .

[JueV6]

try mixing some washing up liquid and water in a spay bottle and spray over the tyre including the rim and valve. leave it for a few mins and you'll probably find out where its leaking from.  If its losing 10psi a day its quite a big leak so id put it down to the numpty thats checking it.

Lee (kw*k fit employee ) but a good one.

I knew there had to be at leas ;Dt 1, didn't think you'd admit it tho lee

[Danny]

place the tyre in a dry area, get some water with washing up liquid in it and put a small amount all round the rim of the wheel, keep your eye on it and look for the bubbles, its possible their could be very minor corrosion around the rim where the tyre meets it enough that it'll leak air

repeat on the inner side if no sign on outer side