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Firmer springs for 2XJ Short Action Valves

Postby sticky_valve » Tue Mar 13, 2018 6:02 pm

Hi all,

I've purchased some replacement springs online that appear to be the right size, however I found them to be too soft.

It feels like the valves are bouncing back and are just a tad too slow returning.

Looking for recommendations on the best source to replace these springs for my Conn 20J with something more firm?
Reynolds TB-11, Conn 20J, Conn 20K, Yamaha YBB103
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Re: Firmer springs for 2XJ Short Action Valves

Postby Dan Schultz » Tue Mar 13, 2018 6:14 pm

Have your tech order some Conn/Selmer SU30117 springs or the generic Allied A383 springs. If those don't work for you... you might need some other type of piston work.
Last edited by Dan Schultz on Tue Mar 13, 2018 11:16 pm, edited 1 time in total.
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Re: Firmer springs for 2XJ Short Action Valves

Postby the elephant » Tue Mar 13, 2018 7:45 pm

Dan Schultz wrote:... Conn/Selmer SU30017...


That shows up as a slide crook, Dan. Can you check the number? I cannot find that large of a spring and I need eight of them! I wish they made is easier to order stuff. It is like you need Divine Intervention to locate certain parts...

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Re: Firmer springs for 2XJ Short Action Valves

Postby Dan Schultz » Tue Mar 13, 2018 11:19 pm

the elephant wrote:
Dan Schultz wrote:... Conn/Selmer SU30017...


That shows up as a slide crook, Dan. ....


Sorry. The spring would be a SU30117.
Dan Schultz
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Current 'stable'... Rudolf Meinl 5/4, Bohm & Meinl helicon, Marzan BBb 'slant-rotor', King 2341, Alphorn, BBb cimbasso, etc.
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Re: Firmer springs for 2XJ Short Action Valves

Postby bloke » Tue Mar 13, 2018 11:23 pm

So many B.and I.nstrument R.epair T.echnicians incorrectly stick Conn sousaphone springs into other brands of sousaphones (and tubas), that I end up with a huge box of used Conn sousaphone springs, tossing in the box - at least - those that weren't stretched out four inches long by some young scholars who were attempting to overcome lime deposits.
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Re: Firmer springs for 2XJ Short Action Valves

Postby the elephant » Tue Mar 13, 2018 11:47 pm

Dan Schultz wrote:
the elephant wrote:
Dan Schultz wrote:... Conn/Selmer SU30017...


That shows up as a slide crook, Dan. ....


Sorry. The spring would be a SU30117.


Thanks!
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