 The Clarinet BBoard
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Author: Pandamom
Date: 2013-09-10 18:38
Hi all.
I have a question. I recently received a Backun barrel for my R13. The problem is, is that the barrel is too wide to stay put on my clarinet. I don't really want to alter the upper joint too much so that my original barrel doesn't fit. Any suggestions? I have contacted Backun who told me to get extra cork put on the upper joint.... Help. Thanks. Julie
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Author: Chris P
Date: 2013-09-10 18:40
Wrap a strip of paper or some masking tape around the tenon cork and that will work until you get your tenon cork replaced.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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Author: GBK
Date: 2013-09-10 18:48
Chris P wrote:
> Wrap a strip of paper or some masking tape around the tenon
> cork and that will work until you get your tenon cork replaced.
Teflon tape is even better.
Backun barrels (which I use) are remarkably consistent as to tenon sizing, I've probably tried more than 50 of them and they all were practically identical as to fitting the upper joint correctly.
If you are going to use the Backun barrel as your primary, just re-cork the upper joint. If the R13 barrel will be a spare, you can always have a tech slightly take off a bit of material so it also fits when needed.
Hardly a big deal.
...GBK
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Author: gsurosey
Date: 2013-09-10 19:03
Same thing happened to me (on a Bundy Eb). I wrapped the tenon with teflon tape, and voila, all good. Not that I plan on using a different barrel now, but if I did, I can just take the teflon back off.
----------
Rachel
Clarinet Stash:
Bb/A: Buffet R13
Eb: Bundy
Bass: Royal Global Max
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Author: Chris P
Date: 2013-09-10 19:14
I completely forgot about Teflon tape, silly me. Gas quality Teflon tape is thicker but will still compress.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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Author: Ed Palanker
Date: 2013-09-10 23:32
Make sure you clean the grease off of the cork first otherwise the tape is slide off.
ESP eddiesclarinet.com
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Author: Gordon (NZ)
Date: 2013-09-11 13:00
Somehow I had the impression that when you buy a Backun barrel you specify the diameter of the timber of the tenon, so that it can be made to fit snugly.
Then the cork, and changing barrels would not be an issue.
Perhaps I am wrong ???
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Author: DaveKessler
Date: 2013-09-12 02:01
Gordon (NZ) wrote:
> Somehow I had the impression that when you buy a Backun barrel
> you specify the diameter of the timber of the tenon, so that it
> can be made to fit snugly.
>
> Then the cork, and changing barrels would not be an issue.
>
> Perhaps I am wrong ???
Yes, you are incorrect my friend. Backun makes a Selmer model that is designed to be used for the slightly longer (by .5mm) Selmer tenon length. Otherwise, the other models are made for the Buffet/Yamaha/Leblanc tenon length.
Backun uses a Boehm reamer for their socket cuts that is absolutely marvelous (I know as I have one too!). I will actually find a slight variation in the barrels sockets but that could be due to my wonderfully dry climate in Las Vegas. I always make sure to check barrels to my Boehm reamer before shipping out to customers to make sure they are dead on.
Dave Kessler
Kessler & Sons Music
http://www.kesslermusic.com
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Author: Gordon (NZ)
Date: 2013-09-12 12:47
Perhaps I misunderstand you, or expect higher tolerances, but I find little that is standard for the diameter of the upper joint tenon that goes into barrels for different brands/models. I hope that Boehm reamer is adjustable!
Mouthpieces - a different story. High standardisation except for a few brands, eg Grassi.
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Author: DaveKessler
Date: 2013-09-12 15:45
Gordon (NZ) wrote:
> Perhaps I misunderstand you, or expect higher tolerances, but I
> find little that is standard for the diameter of the upper
> joint tenon that goes into barrels for different brands/models.
> I hope that Boehm reamer is adjustable!
>
> Mouthpieces - a different story. High standardisation except
> for a few brands, eg Grassi.
Yes, you do misunderstand me. The Boehm reamer that I have is set to the BACKUN factory spec, which is slightly oversized due to the inconsistencies in tenon diameters. Its easy to buildup a cork (new cork, Teflon tape, etc...) when a barrel is slightly loose - but if the barrel doesn't fit at all, the customer is usually out of luck without going to a tech. So in order to make them testable on the large majority of clarinets, the Boehm reamer set at BACKUN factory spec is just slightly oversized.
Hope that clarifies.
Dave Kessler
Kessler & Sons Music
http://www.kesslermusic.com
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Author: DaveKessler
Date: 2013-09-12 15:45
oops - duplicated the post. Delete.
Dave Kessler
Kessler & Sons Music
http://www.kesslermusic.com
Post Edited (2013-09-12 15:48)
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Author: cyclopathic
Date: 2013-09-12 23:06
@Gordon-NZ
>Perhaps I misunderstand you, or expect higher tolerances, but I find little that is standard for the diameter of the upper joint tenon that goes into barrels for different brands/models.
Which standard? there are 3: 23, 23.7 and 24mm
with respect to OP if the socket hasn't been greased or had been cleaned you can put a few pieces of masking/duct tape to make it smaller. That way you can switch btw barrels.
Re-corking joint may not be an option is original barrel too tight.
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Author: Gordon (NZ)
Date: 2013-09-14 10:42
IMO the snug fit of a tenon in a socket is determined by the diameters of the timber. If there is more diameter discrepancy between tenon and socket than about 0.2mm, then I regard it as a pretty bad fit.
In this respect, one size fits all, as long as it is larger than the tenon, is not good enough.
Although it does contribute a little to stop wobble (IF there is a good tenon timber fit), the cork's primary purposes are for sealing and stopping the sections falling apart.
IMO there is no way a cork should be expected to deal with a significant discrepancy in diameter.
I have encountered an extremely loose Backun barrel, supposedly made for the particular clarinet. And that is why I am a little niggly re this topic.
Post Edited (2013-09-14 10:44)
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Author: Pandamom
Date: 2013-09-18 20:10
Thanks for the feedback everyone - I did order my Backun barrel - had Ricardo Morales choose one for my clarinet.
Anyway, I will try a couple of those methods and see what works best. Again, thanks.
J
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Author: BflatNH
Date: 2013-09-19 02:38
A minor variant on the prior suggestion.
I put a single layer of tape (Scotch, not Teflon) on the *inside* of the barrel.
Not the easiest to do, and you need to clean off residual grease.
Post Edited (2013-09-19 02:56)
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Author: Alseg
Date: 2013-09-19 12:29
You can paint the inside of the loose barrel socket with layers of clear acrylic "clearcoat" or even nail polish. Let it dry for a half an hour, recoat if needed.
Former creator of CUSTOM CLARINET TUNING BARRELS by DR. ALLAN SEGAL
-Where the Sound Matters Most(tm)-
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Author: Devi Shammuramat
Date: 2020-07-30 00:20
BflatNH wrote:
> A minor variant on the prior suggestion.
>I put a single layer of tape (Scotch, not Teflon) on the *inside* of the barrel.
>Not the easiest to do, and you need to clean off residual grease.
>
I put two layers of electrical tape.
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Author: EbClarinet
Date: 2020-08-04 00:38
I just got my new 1st R-13 back in May. Why r professionals getting other barrels 4 their already professional horns? Please educate me.
https://www.tapatalk.com/groups/mbtldsongministry/
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Author: m1964
Date: 2020-08-04 05:45
You may hear from two groups of people.
1st will say that the original barrel is matched to the instrument and there is no need for an aftermarket barrel.
2nd group will say that good quality aftermarket barrels produce better sound, response and may tune better than the original barrel...
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