donm
Well-Known Member
My (old) Avon deflates because the valves are leaking. I have tried to clean them but with little success. Anyone know if you can get replacement innards and how to fit them, or must I upgrade the valves?
Avon A4 valves
- Thread starter donm
- Start date
VicS
Well-Known Member
I think you can get repacement parts, or you can upgrade them
www.Polymarine.com
Advice sheets on that site as well giving intructions
www.Polymarine.com
Advice sheets on that site as well giving intructions
donm
Well-Known Member
Yes - thanks for the link, but I cannot see how to replace the cup. Without some instructions it looks like a fiddly push/twist/pull/pull harder/pull even harder/knacker it jobby! /forums/images/graemlins/confused.gif
Spyro
Well-Known Member
The metal collar inside the valves that the rubber diaphragm seats against can become rusted, I have had success by bending the end 5mm of a small flat file to 90 degrees and filing the underside of the metal collar. then try some fairy liquid on the diaphragm to make a better seal.
Are you using the rubber bungs as well?
Are you using the rubber bungs as well?
donm
Well-Known Member
I picked this tip up from a previous post and have tried it but to no avail. Yes - I am using the bungs
smonard
Well-Known Member
I did this recently. I thought about buying the new valves but when you add all the stuff up insertion spanner etc it ends up too expensive, might as well buy a new dingy. I also did try to remove one valve by warming the material near the valve and peeling it all apart, impossible! You have to cut them out. I have heard of people gluing in car tyre valves. Take a while to pump up I would imagine.
You can buy the cups from polymarine, along with the springs and the little washers. Its quite fiddly but easily possible. The old ones you can just rip out using scissors to chop them up a bit helps. I generously lubricated the new cups with o-ring lube. Shove the cup past the frame then fiddle until the stalk of the new cup goes through the hole, slip the spring then the washer over the stalk then pull the end of the stalk while pushing down the washer. I thought the stalk part might come off but it went fine for all three valves. The lube probably helps. Although the operation was technically a success with all three valves they still leak a bit without the bungs in. I suspect the seats are a bit rusty.
You can buy the cups from polymarine, along with the springs and the little washers. Its quite fiddly but easily possible. The old ones you can just rip out using scissors to chop them up a bit helps. I generously lubricated the new cups with o-ring lube. Shove the cup past the frame then fiddle until the stalk of the new cup goes through the hole, slip the spring then the washer over the stalk then pull the end of the stalk while pushing down the washer. I thought the stalk part might come off but it went fine for all three valves. The lube probably helps. Although the operation was technically a success with all three valves they still leak a bit without the bungs in. I suspect the seats are a bit rusty.