Leafield C7 inflation valves

[martini]

Can anyone offer advice on these? I have nine of these in my tubes and probably six of them have leaked since I bought it. They don't just leak slowly, it's like they're stuck wide open.

I've tried washing them out with water and blowing them out with an air line and I've pulled on the centre plunger type bit with a pair of pliers but all to no avail.

I've seen the pdf on Leafield's site but without a valve in my hand to look at I'm none the wiser.

Can they be replaced without major surgery on the tubes?

I see you can buy a replacement core assembly, is this easy to change? Is it likely that a new core assembly would solve my problem?

Thanks

[Ribshop]

They may just be locked open, try pushing the centre core in with your finger and twisting anticlockwise.

If the valve diaphragm is damaged they are available separately on our website.

http://www.rib-shop.com/prodtype.asp...earchCriteria=

[martini]

Thanks for the tip, I had no idea they could be locked open! Doh!

That sorted them all out except for 1. I measured the centre core and compared it to others, it is closing up all the way and slowing the air down a bit but still p***ing out.

Would a new valve diaphragm be likely to sort it? Can these be replaced without cutting holes in the tubes etc? Help please?!!

[Ribshop]

They can be replaced without opening the tube.

You can find the instructions here.

http://www.rib-shop.com/prodtype.asp...ageHistory=cat

[martini]

Thanks for that, your instructions refer to A7 and B7 valves, are C7 the same?

[Nasher]

Can somebody point me to, or post an image, showing the different types.
A7, B7 C7 etc.

I need to replace the diaphrams in the valves on my Ocean and don't know which type to order in advance of stripping the down.

Thanks

Nasher

[Rich L]

Originally Posted by Nasher

Can somebody point me to, or post an image, showing the different types.
A7, B7 C7 etc.

I need to replace the diaphrams in the valves on my Ocean and don't know which type to order in advance of stripping the down.

Thanks

Nasher

http://www.leafieldmarine.co.uk/products.htm