Wheel Valve Leaking

aidanki

I have a wheel on a boat trailer which actually contains a tube. And its a new and rather expensive tube 100euro only 3 years old or thereabouts, no punctures in it.

I have replaced the valve twice on the tube and it is still leaking, (saliva test). Tyre fitter assembled the whole lot 3years ago, it came with a metal dustcap on it from tyre fitter 3 years ago, maybe thats why the tyre fitter had a metal dustcap on it. It blew off the dustcap or it collapsed, not sure which but it has been the dust cap which was keeping the air in rather than the regular shrader valve in the tube. Havent pumped it in a year the dustcap was doing the job perfectly until I see it blown off today, and a soft tyre.

Reaching out to the extended knowledge of boards…….

Is there anything I can do to ream the surface where the valve is supposed to seal to fix the problem. Have replaced the valve twice with new shrader valve.

mk7r

You already know this but you need a new tube

Esel

Or a new dust cap and a 12V compressor.

CMOTDibbler

If the dust cap is keeping the air in, it's clearly the valve that's faulty. That's either the valve or the valve seat. So another valve or another tube.

Buffman

€100 for a tube! You were stung badly there, could have gotten an entire new trailer wheel all in for that. There's no fixing it if you've changed the inner valve already, must be a flaw in the body and as it's part of the tube it's fecked.

After paying that much for it personally I'd be going back to the fitter looking for him to fix it.

What size tyre, tube and wheel PCD is it?

aidanki

a big tyre bigger than your average

https://hbi-tyres.com/tyre/1300x530-508-b-20-bn3/

no way of reaming out the valve or putting some type of seal in the tube mouth in front of the valve

Buffman

https://www.boards.ie/discussion/comment/123382689#Comment_123382689

Ah fair enough, didn't realise it's a big agri tyre, must be a big boat!

An easy and cheap way out of it might be a valve extender with it's own valve, some of them don't have valves so if you go for it double check it has one.

There are also 'stick on' valves available for repairing tubes, I've never used any so can't vouch for them being any good or not.

https://patchtyre-equipment.ie/shop/valves/jcb-tractor-valves/5010150-tr15-stick-on-valve/

Stephenc66

Are you using using the trailer to launch and recover the boat in salt water? If so maybe corrosion has caused the problem? Especially if the original cap was metal.