Changing valves in an inflatable boat

To change the valves on some of the older Avons, you will need to cut a slit in the tube through which you remove the old valve and fit the new one, you then clean around the slit and sew it with a strong thread, then fit a Hypolan patch with the appropriate glue.
Mind when cutting the slit to leave enough distance away from the valve to allow you to fit a substantial size patch.
 
First find out which type of valve is fitted - the "later" ones (IIRC) can be replaced without any "surgery" - they unscrew and come out through the original hole when the valve is turned sideways.

Try posting a pic of your valve and maybe you will get a more positive response. /forums/images/graemlins/grin.gif
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Hi, I posted on this a couple of days ago. If you have the older A4 valves there is a kit of new diaphram, spring and washer, at £3.50. At that price it's really worth a go before going the expensive route. I have just bought a kit, and the guy who sold it did warn that it is a very fiddly job. Basically you need to soak the diaphram in hot soapy water, and then slip it through the brass ring on the A4 valve. the nipple then somehow has to be got back up through the hole in the centre. It's on my list to do. If I am successful, I'll have saved the £70 bill for a professional to fit an a7 valve. If I fail, I'll have wasted just £3.50.
 
I thought about diy ... then gave it to Ron Hales to change rthe valves ... price was sensible and good job done. I have piece of mind that job was done properly ...

IMHO
 
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