Thread Tools Search this Thread
Old 20 December 2011, 06:40   #1
Country: UK - Wales
Town: swansea
Boat name: swanseabeast
Make: avon searider
Length: 4m +
Engine: 55 yam
Join Date: Nov 2011
Posts: 30
changing valves on sr4

how hard is it to change the valve on my sr4 project as theyre knackered got new sets but how do you get the old units off etc

swansea beast is offline   Reply With Quote
Old 20 December 2011, 09:53   #2
hamster's Avatar
Country: UK - England
Length: 4m +
Join Date: Aug 2006
Posts: 196
Assuming the main body of the valve is ok you can change all the gaskets and everything on the outside without having to cut huge tubes.
Take the cap off and the then you should be able to unscrew the front part of the valve. Hold onto the back of the valve body by holding the back of it from the other side of the deflated tube. You may need a big adjustable spanner to loosen it.

Once undone remove the old gaskets etc. At this point you can't let go of the valve body or you'll loose it into the bottom of the tube and it's a bugger to find it again so make sure you have everything ready and within arms reach before you get to this point!
The rubber valve is usually what perishes and is screwed to the plastic stem that you push in to deflate. You'll need to turn the valve body around (careful you don't drop it!) and unscrew the rubber valve, probably with the help of pliers to get it undone. If it won't budge be careful you don't damage the main housing as if you break that it means cutting the tube and patching to replace it.
Replace the plastic stem and spring and then screw on the new valve from the back making sure its tight.
Then just fit it all back together with new gaskets and new cap etc if you want it to look shiny as well as be functional.
A bit fiddly when you do the first one and will probably involve some swearing but you'll soon learn and the third one will be a piece of cake!

Sent from my iPhone using
Freelance skipper, RYA Powerboat Trainer and Advanced Examiner
hamster is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 20:46.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.