Last night at rehearsal I had to pull the bottom cover off of valve 1 on my 24j. When I did that, a bunch of water come flowing out, trapped in the area around the spring alignment bump. I am thinking this is probably not a good thing, have any of you made any mods to help the valves drain? Thanks
Jim
Conn 24J valve water
- Dan Schultz
- TubaTinker

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Re: Conn 24J valve water
First off.... check the vertical alignment of your pistons. There's not much of a 'land' between ports to serve as a seal surface and just a little bit of wear or mis-alignment will increase 'blow-by'.jstrother123 wrote:Last night at rehearsal I had to pull the bottom cover off of valve 1 on my 24j. When I did that, a bunch of water come flowing out, trapped in the area around the spring alignment bump. I am thinking this is probably not a good thing, have any of you made any mods to help the valves drain? Thanks
Jim
That being said... it's not unusual to get a little water in the bottom caps but just tipping the horn side-to-side should allow it to drain out... unless there is a lot of 'gunk' in the bottom of the spring or the drain hole is clogged.
Dan Schultz
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
- Rev Rob
- 3 valves

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- Joined: Tue Jan 19, 2010 6:18 am
- Location: Absarokee, Montana - South Stillwater County
Re: Conn 24J valve water
I have that problem as well. If I am playing Gb or low C and hear a gurgling sound. After I check and empty my water keys, empty out my slides and I still hear the gurgling - I pull the third valve, remove the spring and blow the collected water out through the bottom cap. My valves could stand to be replated, I think.TubaTinker wrote:First off.... check the vertical alignment of your pistons. There's not much of a 'land' between ports to serve as a seal surface and just a little bit of wear or mis-alignment will increase 'blow-by'.jstrother123 wrote:Last night at rehearsal I had to pull the bottom cover off of valve 1 on my 24j. When I did that, a bunch of water come flowing out, trapped in the area around the spring alignment bump. I am thinking this is probably not a good thing, have any of you made any mods to help the valves drain? Thanks
Jim
That being said... it's not unusual to get a little water in the bottom caps but just tipping the horn side-to-side should allow it to drain out... unless there is a lot of 'gunk' in the bottom of the spring or the drain hole is clogged.
Beginning again to be a tuba player.
1291 King Double B flat with detachable bell.
"The hills are alive, with the sound of (tuba) music."
1291 King Double B flat with detachable bell.
"The hills are alive, with the sound of (tuba) music."
