YEB-321 Questions

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ppalan
3 valves
3 valves
Posts: 482
Joined: Fri Nov 24, 2006 10:40 pm
Location: Montgomery County, PA

YEB-321 Questions

Post by ppalan »

Here's a couple of questions for any of the repair techs:
1.
Are there equivalent sets of springs to substitute for the Yamaha springs. I like them but I believe they are coated with Teflon (or some plastic-like material) and lately, every time I clean the valves, more chunks of the coating are loose. I can't help but believe that some of these loose pieces are responsible for the more frequent valve sticking I've been having lately.
2.
Usually I remove slides one at a time to clean them and re-grease them but today I decided to do a more thorough cleaning and removed them all at the same time. It looks to me like slides 1 and 3 are identical. Is that true and if so, are they interchangeable? (I seem to remember from high school that the 1st and 3rd valves were interchangeable but I may not have that right.)
Thanks,
Pete
:tuba:
ppalan
Mirafone186 CC 4v
Yamaha Eb 321
Wessex "Berg" F
Bob Kolada
6 valves
6 valves
Posts: 2632
Joined: Sun Jul 19, 2009 1:57 pm
Location: Chicago

Re: YEB-321 Questions

Post by Bob Kolada »

Slides 1 and 3 are interchangeable on the 321 euph, fwiw.
Phil Dawson
3 valves
3 valves
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Joined: Tue Jun 22, 2004 8:53 am
Location: Livingston MT

Re: YEB-321 Questions

Post by Phil Dawson »

The springs are coated with some kind of plastic so that they will be quieter. I use them on all of my piston horns. I have also run into the problem of the plastic peeling off. What I have done is to use my fingernail and sometimes a bit of OOOO steel wool (make sure that you rinse all of it off) to remove as much of the plastic as possible usually it is all gone in a couple of weeks depending on how much you practice and play and then there is no problem. Be patient and you will some great springs, Good luck, Phil
menroth
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Joined: Thu Jul 10, 2014 3:18 am
Location: Finland

Re: YEB-321 Questions

Post by menroth »

Hi!

Yes, the 1st and 3rd slides are interchangeable on the yeb-321 (at least on mine) and I have not noticed any difference between these two with my human ears.

Regards,
Martin
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