I have solved the mystery of the noises coming from my euph.
Someone suggested I remove all the springs to test them as being the cause of the ringing or rattleing . Sure enough that did the trick !!!
The next thing to do was figure out how to stop them from rattleing. This was done by putting Selmer cork and slide grease on the bottom of the piston and the lip of the bottom valve cap to act as a cushion for the springs . Once I did that and put it back together all noises , rings and rattles were gone.
The only thing that rings now is the room I am playing in from the resonance of my B.A. euphonium with the B.A. sound !!!
Life is good again.
My most sincere thanks goes out to all who answered my previous post in an attempt to help. A special thank you to
" bloke " for his brutal honesty and frankness .
When " I " speaks it is wise to listen to him.He knows what he is talking about .
Glad to know you found the source of the problem, but I'm not sure your solution is going to be satisfactory long-term. That cork-grease is sooner-or-later going to wind up between the pistons and casings, and slow down the valves. I'm thinking it might be better to gently stretch the springs, to increase the minimum force just a bit (and also perhaps, change the natural vibrating frequency). Either that or switch to the rubber-coated springs.
Your solution certainly won't cause any real damage to the horn, of course. If I'm right you'll just have to give it a good bath.
_______________________________
Joe Baker, who is glad it's not the bell!
I did stretch the springs a little. I did not want to pull them a lot for fear of changeing the shape of them and then having an entirly new problem.
If the grease thing does not work I try stretching the springs a little more or consider rubber coated springs.
I was going over the horn with a friend of mine and he was almost totally convinced that the ringing was coming from the wire that the bell end was rolled around. I did not like the idea of that being the problem because that would mean sending it back to the store and having to wait to get another one.
We tested the springs as a last ditch effort .
bloke wrote:Willson (because, in the $5K - $6K $$$$-range, folk get really picky) glues thin rubber washers that fit "just so" into their bottom caps...The glue lasts for a year or two.
Yamaha tries to accomplish the same thing by dipping both ends of their springs in something that somewhat resembles Plasti-dip. This "solution" also generally lasts about a year or two...and then the plastic coating on the springs begins to break down and peel off.
I wonder if some small heat-shrink tubing or insulating "spaghetti" slipped over the last loop of the springs might last longer....
I don't have the problem, so I'm not going to try it, but it's a thought.
I usually get rid of spring rattles by re-seating the springs somehow. Most often, I'll unscrew the bottom cap just enough to hear & feel the spring give a little *thunk* as it drops back into place, and then screw the cap back on.
This doesn't always get rid of 100% of any noise, but it really helps.
