Tyre going flat overnight (style 55 alloy)

[DrWong]

Would anybody have any insight into why my front passenger wheel has suddenly started deflating to fully flat overnight?

It's an Avon ZZ5 on a style 55 alloy. The tyre is just over a year old with around 2,500 miles use. There's well over 5mm of tread left. No sign of puncture of deformation. The alloy is in great condition, a bit kerbed but no obvious corrosion

I took it back to the original fitting garage yesterday who said the tyre and alloy look fine. They re-beaded the tyre and replaced the valve but it was flat again this morning

I reckon the easiest/quickest solution here would be to get a good secondhand alloy to swap the tyre onto. If anyone has a style 55 for sale then please holler at me

 

[Nodzed]

I took it back to the original fitting garage yesterday who said the tyre and alloy look fine. They re-beaded the tyre and replaced the valve but it was flat again this morning

Did they dunk the wheel and tyre in a water bath? If not get them to do that, some punctures or cracks can be minuscule but bit drop air

 

[abh29]

I was regularly losing air in both fronts of my split rims,I assumed normal risks of bad sealing of the two sections,or the tyre seating.
At an MoT they picked up the valves were perished (called Dangerous) ,they were not very old.
I replaced them all,and tyres now stay up ok,maybe down 2 psi in about 3 months

 

[DrWong]

It was a Honda dealer. They only had the car for half an hour and I didn’t check if the tyre was wet when I got it back. But I could see the valve had been replaced because the cap was different and that there was soap around the rim, so they at least did those bits.

Being a main dealer I just assumed they would’ve done the basic checks. Which might be a bit naive on my part admittedly

 

[t-tony]

Get a 2 ltr pop bottle and put an inch of fairy liquid etc. in the bottom. Fill with cold water and tip over the tyre treads, rims and valve. Watch for bubbles.

Tony.

 

[mrscalex]

I have a full set of Style 55s if required. Can’t really split them.

Pretty good shape. 3 with tyres. All decent tread and holding air I believe. And cheap!

Can’t remember where you are but we’re off to Manchester from Swindon tonight and could drop off/meet up if you’re on the way.

 

[DrWong]

I have a full set of Style 55s if required. Can’t really split them.

Pretty good shape. 3 with tyres. All decent tread and holding air I believe. And cheap!

Can’t remember where you are but we’re off to Manchester from Swindon tonight and could drop off/meet up if you’re on the way.

Ahh cheers mate, but I’ve already agreed to buy a nice set off a fellow forum member (via PM). Good to know you have some in though

I’m in Newcastle mate, so still a bit to go from Manchester

 

[petecossie]

I'd just take it to a local tyre repair shop and get them to dunk it as already stated above. My wife's car a VW Golf had a very slow puncture which was indicated with the auto tyre pressure system on the car. Turned out to be a very fine nail buried in the bottom of the tyre tread, impossible to see when the wheel/tyre was initially inspected. However when the wheel was dunked the leak was found by the odd small bubble. Once marked up the tyre was removed and the nail was very apparent on the inside. The repair was completed and been OK since.
The dunking would confirm whether the leak was puncture, faulty valve, bead leak or wheel defect. I'd get that sorted first before changing wheels etc. Ideally you need to see it carried out whilst you are there to observe.
Any chance going to Champs on Sunday, if so see you there.

 

[DrWong]

I'd just take it to a local tyre repair shop and get them to dunk it as already stated above. My wife's car a VW Golf had a very slow puncture which was indicated with the auto tyre pressure system on the car. Turned out to be a very fine nail buried in the bottom of the tyre tread, impossible to see when the wheel/tyre was initially inspected. However when the wheel was dunked the leak was found by the odd small bubble. Once marked up the tyre was removed and the nail was very apparent on the inside. The repair was completed and been OK since.
The dunking would confirm whether the leak was puncture, faulty valve, bead leak or wheel defect. I'd get that sorted first before changing wheels etc. Ideally you need to see it carried out whilst you are there to observe.
Any chance going to Champs on Sunday, if so see you there.

Thanks Pete, all sensible advice. The garage re-beaded the tyre and replaced the valve and said no obvious sign of puncture. That aside though, swapping the wheels over for a good set is the quickest way to get back on the road as I can do that myself this weekend. Luckily, the wheels I'm getting come with very good virtually new tyres, so I'm just viewing it as a (very) cost-effective tyre upgrade.

Existing tyres are also nearly new but they can just go back on after I get through the replacements, subject to getting to the bottom of why that one is deflating. Chance I might be at Champs if I manage to get the wheels sorted