leaking valve

[eliott]

One tube keeps deflating, I've checked for external leaks but have identified the valve to be the problem, if I replace the screw cap it lasts for a day but without the cap fitted it soon deflates, is there any way to service the valve internally or do I have to replace the complete valve by removing its perfectly good attachment to the tube?

[m chappelow]

Originally Posted by eliott

One tube keeps deflating, I've checked for external leaks but have identified the valve to be the problem, if I replace the screw cap it lasts for a day but without the cap fitted it soon deflates, is there any way to service the valve internally or do I have to replace the complete valve by removing its perfectly good attachment to the tube?

Try clean inside with a cotton wool bud and washing liquid .seal may be dirty or the rubber gone hard

[Chris Caton]

I had similar problems a while ago, if you can unscrew the valve from the body give it a good wash with warm soapy water, maybe grit in the valve. If you can't get it out, just try washing it in situ, deflate the tube fully first so you can get at the valve. Patience is the secret, took me a few goes to get it sorted

[uncle al]

Try this it has worked for me, inflate the tube undo the retaining nut for the leaking valve and leave slack for a few seconds then tighten the valve retaning nut

[Downhilldai]

You can get valve service kits - basically a new diaphragm % spring for around £6. Take a look on the Ribshop website for a pretty good guide on how to change the diaphragm. Easy job.

[eliott]

Thanks everyone, I didn't know if they were a servicable or replacable part without cutting them out.

[Chris Caton]

just make a cup of tea before you start and have a good think about what your doing, that's the hardest part of it, nowt to it once you've done it