Problem with Sport Techno Wheels Leaking Air w/ Steel Valves

[darrinsmith]

Hi,

I have had some brand new 18" sport techno wheels fitted to my 2004 996 turbo cab.

The car was in an accident and the insurer insisted that I had to have no larger than 18" genuine Porsche wheel to replace the old Gemballa 18's which were damaged in the accident and were no longer available.

So I got them to fit a complete brand new set from Porsche! (nice).

They have only been on the car about 3 months, but I am having constant issues with the metal valve stems leaking air.

It has been to the tyre shop several times, and the latest shop (they are actually clients of mine) took the tyre off the wheel and showed my how the valves fit.

Bascially the rubber seal on the inside of the valve is prone to leaking. We cleaned up the seal and re-seated it (there was a small amount of corrosion that had rubbed off the inside of the wheel), and tightened the outer retaining nut as much as we dared, but it's still leaking, especially if you put any sideways pressure on the valve stem.

I've never had this problem before, so I'm a little stumped as to how to proceed. I assume the valves came with the wheels?

Can anyone suggest what I can do?

Thanks

DS

[RFM]

Are the wheels completely, including tires and valve stems, supplied by Porsche or just the rims? In the first case use your warranty, in the second case it may be that the valve stems do not have the correct size, go buy them by the dealership or pull rubber valve stems in if you want it cheaper.