Klarinet Archive - Posting 000141.txt from 2007/02

From: "Geoff & Sherryl-Lee Secomb" <gsecomb@-----.au>
Subj: Re: [kl] A Question for the Repair Gurus
Date: Mon, 19 Feb 2007 17:11:17 -0500

I was also going to leave this to others, but ...........
Springs: Don't worry too hard about a bit of surface rust on the springs -
it'll be a long time before it makes any difference to the way they work.
If you want to protect them, a light coating of oil will help. (Please be
careful not to overdo the oil, on keys or springs, or the excess oil will
spread and you will start to lose keycorks as the oil breaks down the glues
which hold them on.)

F/C key: In my workshop I use automotive gasket paper, which comes in
various thicknesses. I have also used card from Manilla folders or business
cards when pressed, and this has also worked well. I don't like cork in
high stress applications like this, as it invariably compresses and then
wears out too fast. Use contact cement, but use it sparingly, not
liberally, as it is not the amount of glue which does the job, but the bond
to each surface. Press together when touch dry, but don't leave too long.
If the material you use between left and right keys is too thick, put a
narrow piece of 400 grit wet and dry paper between the key pieces and draw
it out, and repeat until there is NO play between the keys, and the RH F/C
key crows foot is snug up against the RH F#/C# and E/B keys (assuming that
the adjustment is correct here!) If there is key play, shim up the
underside of the LH F/C key with paper or thin cork until the play is
completely gone.

Geoff Secomb.
Repairer of thirty years.

----- Original Message -----
From: "Fred Jacobowitz" <fbjacobo@-----.net>
To: <klarinet@-----.org>
Sent: Tuesday, February 20, 2007 2:36 AM
Subject: Fwd: [kl] A Question for the Repair Gurus

> Hi. I'm another "shade tree mechanic". The glue to use is contact cement.
> You can get it an any hardware store. It must say "contact cement". To
> use it, you apply liberally and wait until it is tacky (no longer comes
> off on your finger when touched) - usually about 5 minutes. Then
> carefully put the two surfaces in contact with each other.
> The thickness of the cork depends on the gap, which is different for each
> brand of instrument. If it is too thick, use an emery file (trimmed to
> the necessary narrowness) or 100 grit sandpaper to GENTLY abrade enough
> cork that it fits correctly. I use teflon because it lasts better and
> doesn't get mushed down. However, 1) it is not so easy to come by and 2)
> you must use "Krazy Glue" (or its ilk - cyanoacrylate) to do the job.
> That becomes tricky.
>
> Kol Haruach Klezmer Band
> Ebony and Ivory Duo
> On Feb 19, 2007, at 8:56 AM, David Glenn wrote:
>
>> Hi Angelia
>> (which syllable is accented?)
>> I see the experts didn't respond yet so this is a reply from a
>> practising clarinetist who often repairs his students' instruments.
>> I don't know about putting nail polish on springs.
>> I assume you mean the F/C key?
>> In that case there _should_ be a cork which more or less elimminates
>> play between the left hand and right hand keys. (Felt will not do here!)
>> The cork is generally glued onto the top part (coming over from the
>> right hand key). Perhaps an average thickness for this cork would be
>> about 1mm? Please someone correct me if necessary. In any case it should
>> leave only a hint of play between the two keys. They still need to move
>> freely. Use glue which holds on wood and metal.
>> Hope this helped.
>> David
>>
>>
>>
>>
>>
>> -------- Original-Nachricht --------
>> Datum: Thu, 15 Feb 2007 23:05:10 -0500
>> Von: "Angelia Fagg" <arfagg@-----.com>
>> An: klarinet@-----.org
>> CC:
>> Betreff: [kl] A Question for the Repair Gurus
>>
>>> OK, actually two questions.
>>>
>>> First, some of my flat springs are starting to show tiny rust spots. I
>>> think I remember reading somewhere that you can cover them with clear
>>> nail
>>> polish to slow it down some. Does this really work, or should I
>>> replace
>>> them?
>>>
>>> Second, the left hand F/B key doesn't immediately connect with the
>>> right
>>> hand one any more. There isn't any cork on either piece, and for the
>>> life
>>> of me, I can't remember whether there's supposed to be!!???!!
>>>
>>> TIA,
>>> Angelia
>>>
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>>>
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