XM 280 Inflatable Tender : Need a new valve stopper

wbmkk

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I have just been given an old XM 280 inflatable tender, which seems in a decent enough condition for its age.

However, when pumping it up, I now notice that one bung is missing. One side is staying inflated, but only because I have the pump attached.

Does anybody here know whether this is a 'standard' type bung, or brand-specific. Any idea on a local (UK) supplier would be helpful too.

thank you
 

greeny

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A photograph would help us identify it for you if possible. I've got a plastic box full of old valves and bits off old scrapped dinghies over the years but don't know them by name or what dinghy they came off.
 

wbmkk

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A photograph would help us identify it for you if possible. I've got a plastic box full of old valves and bits off old scrapped dinghies over the years but don't know them by name or what dinghy they came off.

Many thanks ... don't know why I didn't upload an image in the first place.
 

greeny

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Sorry not got one of those or I'd have sent it to you. I've got similar but with 3 finger holds not 2 on the plug. Also on the types I've got, the depth of the plug looks deeper. Sorry.
 

wbmkk

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Thank you for the replies.
Managed to contact the original owner who told me it was a Valiant recessed valve .. so I can buy the cap from Ribstore. There's actually a boat chandler quite near to where I live, so might give them a call tomorrow.
Regards from Whitley Bay:)
 

TSB240

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If you need to leave your pump in place or have to depend on the outer cover to prevent the tube from going down you have either a faulty or damaged valve.
The outer valve cap is really only a cover and should not be depended upon as a primary seal.

If you want to check this turn your dinghy so the valve is in a vertical position. Fill just the centre of the valve where the red button is with a cencentrated bubble solution of washing up liquid. If you get bubbles the valve is leaking.

No bubbles then fill the outer ring.

If you get bubbles here or around the outside of the valve base then you have a cracked valve insert
They will crack at the top of the thread that retains it to the flange on the inside of the tube.

I have just replaced two valves on ours for this reason. Replacements sourced from Polymarine.
Valve inserts can be unscrewed with the correct castellated spanner and is best done with tube slightly inflated.

Very often the threads of the replacement valve inserts wont match the original. In this case you have to remove the inside tube retainer which is made easier by softening the pvc tube opening with a hair dryer.
Replace with the supplied retainer and new valve and tighten checking for leaks.
 

wbmkk

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If you need to leave your pump in place or have to depend on the outer cover to prevent the tube from going down you have either a faulty or damaged valve.
The outer valve cap is really only a cover and should not be depended upon as a primary seal.

Thank you for your detailed reply

When I blew up the boat, I just stuck the pump in, then when it was inflated, pulled it out and screwed in the cap ... wondering why so much air was released.

Last night was looking on YouTube and noticed that the valve has an insert, which should be in (when deflating) and out when inflating ... no wonder I lost so much air. I checked my valves and yes, the wee red bit was pushed in. I'll try again tomorrow and see if there are any leaks. If so I can order a patch repair kit at the same time as the valve cap. i see a two-part 'glue' is the best type.
 
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