Klarinet Archive - Posting 000654.txt from 1999/12

From: "Ed Maurey" <edsshop@-----.ca>
Subj: Re: [kl] Oh no, a crack/Question?
Date: Mon, 20 Dec 1999 07:27:53 -0500

Richard,

I have never pinned a clarinet before. I have always used flushbands so I
consider myself pretty ignorant on the subject of pinning. It struck me
that super-drying a joint prior to pinning would stress the area of pinning
more when the instrument was used again and, perhaps, cause another crack.

Could you please explain your thinking further?

Ed Maurey

----- Original Message -----
From: Richard Bush <rbushidioglot@-----.net>
Subject: Re: [kl] Oh no, a crack/Question?

> To Dave, HappiLeigh and news group,

> First, it is very hard to know or understand why the clarinet cracked. It
is
> probably not known how much and under what circumstances the instrument
was
> played. It is not known how long and under what circumstances the
instrument may
> have been left unplayed. It is now known how long the instrument may have
been
> sitting in the store, or if it was purchased from the original owner. It
is not
> known if the instrument was ever oiled and what type of oil may have been
used.
> (Yes, I know many people do not believe in oiling.) All we do know is that
after
> "a few weeks" of playing it cracked.
>
> If HappiLeigh could fill in some of the particulars, I'm sure it would be
> interesting to many of the readers.
>
> When I repair a crack I do the following:
>
> 1) Remove keywork.
> 2) Place the cracked section under a lamp (100 watt bulb) with a distance
of
> about four or five inches. I apply the heat until the crack closes as much
as it
> is going to. This could be for just a few days, or it might be for two or
three
> weeks.
> 3) I pin the crack with threaded rod, running the rod into "blind" holes.
Only
> the entry hole needs to be filled and finished.
> 4) Pinning is done in a non-parrallel pattern. First pin goes in from the
left
> and goes down. Second pin (below) comes in from the other side and goes
up.
> 5) After all pins are installed, two to six, holes are filled with a
mixture of
> wood dust and SA gel.
> 6) Crack is filled with SA gel.
> 7) All fills are filed and then sanded with very fine (800 to 1500)
sandpaper as
> the finish step. Usually, I can do a pinning job that is virtually
invisible.
> Yes, it shows just a little bit, but you would need to look at it under
very
> strong light, know where the crack was and know where the holes for the
pinning
> wire were drilled.
>
> Pinning a crack does not close or draw the wood together. It stabilizes
the crack
> so the wood cannot move, so the crack cannot reopen. That is why it is
important
> to dry the wood and allow the crack to close on its own as much as
possible
> before pinning. Just filling the crack will not stop the crack from
reopening or
> becoming a longer crack.
>
> Cracks should be attended to as soon as they are noticed. One should not
continue
> playing on a clarinet after a crack is discovered. QUIT PLAYING, LEAVE THE
> SECTION OUT OF THE CASE SO IT CAN AIR DRY AND GET IT TO A REPAIRMAN!
>
> If I have clearly expressed myself and the reader can understand what I'm
talking
> about, I will have answered by Dave and HappiLeigh.
>
> Best of Luck to you Leigh.
>
> David Renaud wrote:
>
> > A repair technican recently told me that filling with
> > CA glue was now the repair of choice over pinning. Could others
> > confirm this to be.
> > Also, is it prefered to let a clarinet sit unplayed for some
> > time that it my dry out, and the crack close somewhat
> > before filling?
> >
> > Thank You
> > Dave Renaud
> >
> > HappiLeigh125@-----.com wrote:
> >
> > > Hi... I'm very nervous cause i don't know whether or not whether or
not this
> > > can be repaired.
> > > I noticed the other day that my clarinet has a crack. I bought it used
for
> > > $700 a few weeks ago, its a Buffet R13 from 1992. It wasn't there
when i
> > > bought it.
> > > The crack is about a half an inch long on each side of a hole. I
don't
> > > think this is affected my sound, but i'm afraid it will get worse.
> > > What can be done to fix this? can it be filled or something?
> > > Thanks
> >
>
>
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