leaky valve

markymarkP · 03 December 2010, 15:39

hi guys

on my Bombard rib, i find one of the tubes very slowly go down. its definately a valve leaking.

i top it up, and all is fine for a week or two.
i have changed the rubber seal, but it still does it.

any tips? perhaps PTFE tape on the thread?

or any other suggestions to stop it weeping air?

thanks

markymarkP · 04 December 2010, 16:03

Bump!

ribraff · 04 December 2010, 16:26

Can you establish if it is coming from the valve or around the edges? Do you know what make it is? I am guessing it will be a Leafield A7 on your boat, it should be written on the cap.

The valve can be tightened with a plumbers spanner if it is an A7 but you would need a specialised tool for others. If it is coming from inside it may be dirt on the seal, this can sometimes be dislodged by over-pressuring and pushing the valve centre in and realeasing several times.

Pablo · 04 December 2010, 17:00

I would say that the solution would be to rip off the tubes and throw them away. You then go and buy some hypalon tubes from Paul Tilley at TIDEL (http://www.tidel.biz/). Once done you ask him to find you a decent hull to stick the tubes on. Your Bombard hull being now completely useless, you can transfert your engine over and throw away the Bombard hull. Problem sort

markymarkP · 04 December 2010, 17:40

the style of valve is one of these

http://www.rib-shop.com/product.asp?...For=&PT_ID=166

ribraff · 04 December 2010, 17:59

Ah, OK, i'm not a fan of these valves, i would recommend swapping it for a C7 or A7 Leafield number. I have an A7 you can have if you want to go this route. PM me your details and i can send it to you or you can pick up as you're not that far away.

Pablo... Are you on drugs or something?

markymarkP · 04 December 2010, 18:04

Star chap!
Thanks
Are they easy to change?

Pablo · 05 December 2010, 19:40

Quote:

Originally Posted by ribraff

Pablo... Are you on drugs or something?

Like you, I sniff too much glue.