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Trumpet Discussion Discuss Valve Spring ??? in the General forums; Yamaha's low brass springs are coated with something. I think it is teflon. I can ask the Yamaha guy next ...
  1. #11
    Fortissimo User Brekelefuw's Avatar
    Join Date
    Mar 2006

    Re: Valve Spring ???

    Yamaha's low brass springs are coated with something. I think it is teflon. I can ask the Yamaha guy next time he is around the shop.
    I also am pretty sure springs come in phosphor-bronze as well.
    After silence, that which comes nearest to expressing the inexpressible is music. ~Aldous Huxley
    If at first you don't succeed, keep on suckin' until you do suck-a-seed. ~ Clark Terry

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  2. #12
    Pianissimo User tony h's Avatar
    Join Date
    Feb 2008

    Re: Valve Spring ???

    I've steched springs before , never again , it drove me mad . I couldn't get the return even and that realy messes with your head when your playing . Then I tried to squash them down that made things worse , I just got new ones it was cheap for peace of mind.

  3. #13
    Piano User
    Join Date
    Jul 2009
    New Hampshire

    Re: Valve Spring ???

    Getting just the right spring tension is important -- stretching can be made to work, but the springs have to be stretched just right (experience is very important here). Sometimes I take springs which are a bit too long and cut them down just a bit to get the proper response.

    For most people, though, they shouldn't mess with the springs other than simply replacing the current ones, if needed, with new ones. Too much can go wrong. Heck I've had repair clients who come back in after trying to replace their springs and the air doesn't even flow through the horn. Turns out they dropped the valve guide and put it back into the piston backward!

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