406oc.co.uk

Hi,

I would like to replace the air nozzles on my tyres since they will probably snap off at some point - showing lots of corrosion. For that, I need to remove the tyres - at least partially.

Er.... how do I do it? I don't care if I damage them, since I need new tyres anyway, but I want to do the nozzle replacement in my own time without having to bug tyre garage people. I will need to put the tyre back on so I can drive to the garage for the said replacement so I can't just take a knife to it!

Any thoughts/ideas?

Thanks

They wouldn't stand up to the tyres' final journey?

I have tried changing tyres with levers, injuries abounded.

You'll need to break the bead so you can get to the underside of the valve, to do this you need to let all the air out (remove schrader or cut the valve off) and then drive over the tyre to push it off the bead (much trial and error), or set the base of the jack on it, with the other under something solid, like a jacking point, and use it to push the bead off (collect flying jack with forehead). Once off you'll need to hold the tyre down to give you clearance, using maybe a piece of wood or summink.

I suspect there's a good chance you'll end up injured with a car you can't drive

Crap.... not easy then! Was probably a lot easier when tubes were still all the rave.

Sod it - bought these for driving around on, while I get the garage to remove tyres from the alloys.

I used to break the beads by lying the tyre on the ground and driving 'round it' with the o/s front wheel, the weight usually got it off but that was a few years ago.

Remember the tyre has to go back in exactly the same place to retain balance.

Peter

I don't understand this, you wanted to replace the schrader valve yourself and then drive to the tyre place for new tyres? why not just get them to do it?

And be careful running on a mix of winter and summer tyres they can affect braking/grip/insurance?

Any time I've had tyres done, the tyre people fitted new valves......

+1, you should always have new valves fitted when new tyres are fitted as part of the package
Unless you're fitting part worns of course

Welly wrote:I don't understand this, you wanted to replace the schrader valve yourself and then drive to the tyre place for new tyres? why not just get them to do it?

I don't trust them - most places can't tell an elbow from their foot. And it's not very straight-forward since it's quite fiddly and I only want to replace the valve, not the whole sensor, which they no-doubt will insist on.

Not going to use winter tyres - just while I am replacing the valves.

Ah, didn't realise they had pressure sensors in them. So it's possible to replace the actual valves on the sensors? Not something I've experienced so I've no idea. No doubt you'll be ringing about for prices so maybe this is something you should ask over the phone.

Yes, sorry, I should have mentioned this was for TPMS. These valves have a knack of corroding and snapping, which is why I missed Pugfest in 2014. But yes, valves themselves sit inside the sensors in the wheel and it's much cheaper to replace those.

Oh I see now.

Replaced TPMS sensors (or rather the valve things) with new ones. Old ones were corroded to hell, so had to grind them off.




New one on.

On a side note, I noticed that my front O/S tyre had heavy wear on the inside but fine everywhere else? Something adjustable on a tyre place's alignment machine or something more serious (negative camber)...