First Valve Freedom
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Steve Marcus
- pro musician
- Posts: 1842
- Joined: Fri Mar 19, 2004 12:18 am
- Location: Chicago area
- Contact:
First Valve Freedom
If a horn only plays freely when the first valve is pressed (that is, it is "stuffy" when played open or with valves other than the first valve), what does it mean? If there is a remedy, what is it (other than player/mouthpiece adjustment)?
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cjk
- 5 valves
- Posts: 1915
- Joined: Fri Mar 19, 2004 12:16 pm
sounds like an alignment problem.
If it's a piston valve, the cork is worn out or the wrong size(valve comes up too far or not far enough).
If it's a rotary valve, the bumper on the return side is worn out or too big. Take the cap off the back and check the alignment marks.
Any brass repairman should be able to remedy the problem if you feel you are unable to do it yourself.
Christian
If it's a piston valve, the cork is worn out or the wrong size(valve comes up too far or not far enough).
If it's a rotary valve, the bumper on the return side is worn out or too big. Take the cap off the back and check the alignment marks.
Any brass repairman should be able to remedy the problem if you feel you are unable to do it yourself.
Christian
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dopey
- 3 valves
- Posts: 312
- Joined: Mon Mar 22, 2004 7:39 pm
try rotating the first valve, some of our old jr high tubas have that problem and if u rotate the valve it'll open the passage.
the guides that are suppost to be there dont' work, so u can actually rotate the valve to where it'll block off the air completely, or just partially which sounds like what happened to you.
the guides that are suppost to be there dont' work, so u can actually rotate the valve to where it'll block off the air completely, or just partially which sounds like what happened to you.
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Tom
- 5 valves
- Posts: 1579
- Joined: Sat Mar 20, 2004 11:01 am
Are you sure that all the valves are in their correct place?
It is easy to stick the valves together the wrong way after cleaning them by accident.
Might want to check that out...
Otherwise, probably valve guide problems (not keeping the pistons in line with the correct ports) or it could be bumper problem (rotors are not getting opened up enough or too little)
Also, be sure that you don't have really, really, really soft springs and that resting your hands on the buttons is actually depressing the valve resulting in a sort-of "half valve" effect in an "open" horn.
It is easy to stick the valves together the wrong way after cleaning them by accident.
Might want to check that out...
Otherwise, probably valve guide problems (not keeping the pistons in line with the correct ports) or it could be bumper problem (rotors are not getting opened up enough or too little)
Also, be sure that you don't have really, really, really soft springs and that resting your hands on the buttons is actually depressing the valve resulting in a sort-of "half valve" effect in an "open" horn.