| It certainly sounds as if the casings or valves or guides are worn, which wouldn't be surprising in a 30 year old horn. Since it works when tilting to the right, but is worse to the left, I think the first thing to check is the guides - if they are worn, the valve isn't being held centered.
Of course, every individual wears down the valves in a different way, since our fingers/hands/etc are different. If it has been your horn all along, then maybethe wear is catching up with you. If it was previously someone else's horn, your pattern is slightly different, and maybe is causing wear in a different spot.
Either way, you might want to have a trusted repair person check it out.
But no, you're not crazy - anything mechanical is apt to malfunction eventually! |