 The Clarinet BBoard
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Author: andy collins
Date: 2009-08-16 14:25
I am unable to solve a leak/spring problem and get the correct tension with the spring on this key. I have replaced it several times with differing size wire springs and blue needle springs but it continue to leak. Any suggestions?
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Author: Ken Shaw ★2017
Date: 2009-08-16 15:20
The problem is almost certainly not with the spring but with the pad, which is not seating tight. The problem could be with a bad or poorly seated pad, or it could be with the rim, which may have a nick or have warped unevenly. A third less likely possibility is that the rod that runs through the tube is binding.
Ken Shaw
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Author: Chris P
Date: 2009-08-16 15:46
If you can get the spring in place before you put the screw in you won't lose the tension. More often than not the spring tension goes when the spring is hitched into place after the key is on and usually gets bent back too far to get it into the cradle.
All pads have to be seated correctly on closed keys as springs can only do so much to keep the pad against the tonehole, so make sure the pad is seating well (seat it with the spring disengaged, and you can also determine if the screw is bent or is binding once tightened). Same applies to the F#/C# pad, and other closed pads.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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Author: Gordon (NZ)
Date: 2009-08-16 19:07
I agree with Chris. The most likely problem is that you are de-tensioning the spring by hooking it over the edge of the cradle AFTER mounting the key.
The spring needs to be hooked into the cradle while the key is displaced in a direction that puts the cradle closer to the tip of the spring, before installing the pivot rod.
This is almost always necessary for the Ab/Eb key, but the concept is often needed for other keys which are normally closed, and which have needle springs, because these springs are often rather thick for their diameter, which means that they reach their elastic limit after rather little displacement.
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Author: Paul Aviles
Date: 2009-08-17 13:32
AND.......
Use a crochet hook or similar device so you are able to move the spring with precision and not brute force. This aids not taking the tension back out.
................Paul Aviles
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