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Old 16 July 2003, 12:29   #1
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Country: UK - England
Town: Worcester
Boat name: Cheap 'N' Cheerful
Make: Avon C
Length: 3.5 metres
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Leaky valves (Part Deux!).

After trying everything I have ordered and received some A7 Vlaves to replace my old A4 valves on my Avon (Thank you for a swift service Polymarine). Can anyone offer any advice on removing and replacing them? I would add that I have a good article printed this month in Sailing Today to help me. However any additional advice would be greatly received.
Thanks in advance Bill.
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Old 17 July 2003, 06:49   #2
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When I replaced the valves in my Tinker, I got them with professionally cut patches.
The valves mounted on the patches. Next I cut out the old valves with a Stanley knife, marked the position of the new patches (with valves in) roughed up the surfaces and stuck down with a 2 part glue.
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Old 17 July 2003, 17:00   #3
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You only need replace the diaphragm of the valve therefore no cutting or gluing but a warning its bloody fiddly
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Old 18 July 2003, 13:20   #4
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leaky valves

C7 valves would have been a better replacement as the valve mechanism is in the external part of the valve making future replacement of the diaphragm fairly easy .As to replacing the diaphragms on A4 valves this is impossible after they have been glued into the tube unless you unseam the tube to gain acess to the back of the valve . Therefore your best bet is to cut out the old valves ,approx 70mm diameter hole , and glue the new valves in after first mounting them in large round patches. if you need any further advice phone.
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Old 18 July 2003, 15:28   #5
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Thank you all for the replies and for the others who have phoned me to help.
Bill.
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Old 01 July 2007, 12:34   #6
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leaky valve

Hi Paul
glad I've registered on the forum your answer alone has made it worth it as I was going to attempt to replace the valves on my Humber.
Thanks mate !!!!!!!!!
Ray Rowland
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Old 01 July 2007, 16:21   #7
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This link may be of some help.

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