[pianotech] Why NOT use penetrating oil on those (unusual nosebolt nuts) please?

[Joseph Garrett]

Thumper,
I did an experiment with Penetrating Oil, (Liquid Wrench, specifically), on some Chickering Grand Brass Flanges. Many of the drop screws were locked up and I needed/wanted to reuse the flanges, rather than reinvent the whole system. The damned stuff did too good of a job. It crept all the way into the wooden shanks/bushings and almost all the way to the hammmers! YIKES! It creaps ALL OVER THE PLACE! YIKES! (again) You cannot controll that, therefore it would probably go in places you do not want it to go! Do I use it? Yes. Just NOT on Pianos!<G> Engines. Mechanical problems with rust and over-tightened nuts, etc. Way to go. Used to have a gallon of a "penetrating oil", vintage WWII. Came in a gallon can, Khaki colored and printed with all of the military routing numbers, etc. That stuff was AWESOME! Wish I could get some of it today.<G> No clue what it was. It had a very distinctive aroma, that I've not run to ever again. I've found heat, (controlled), will usually suffice for locked up screws/bolts/etc/.
That's my take on that


----- Original Message ----- 
From: Euphonious Thumpe 
To: joegarrett at earthlink.net
Cc: pianotech at ptg.org
Sent: 6/30/2012 2:22:13 PM 
Subject: Why NOT use penetrating oil on those (unusual nosebolt nuts) please?


Joe!
I have 3 of those countersunk brass nuts (7/8" diameter) on this Ampico grand, but they only have divots 
(not slots) so I'm planning to epoxy some upside-down, 3/32" drill bits into a small bar of steel, for "pegs", drill a 5/16" dent in the middle between them to encompass the slightly protruding bolt ends, apply pressure and twist. 
But why should I not use penetrating oil on this "nuts and bolts" problem? (As you mentioned.) I'm planning to take the plate out, tonight, so will be quite eagerly awaiting your response! (And suspect that the other guys on the list would like to know, too!)


Thanks,
Thumpe





From: Joseph Garrett <joegarrett at earthlink.net>; 
To: <pianotech at ptg.org>; 
Subject: Re: [pianotech] pianotech Digest, Vol 44, Issue 78 
Sent: Fri, Jun 29, 2012 7:23:56 PM 

Wim,
Well, Yes & No.<G> My tool, (which is time-tested<G>), if "tapping" is
necessary, is in a downward motion, so it would not mess up the "notch(s)
of the nut, like other methods would. 
That's my take on it.
Joe


> [Original Message]
> From: <pianotech-request at ptg.org>
> To: <pianotech at ptg.org>
> Date: 6/29/2012 11:00:05 AM
> Subject: pianotech Digest, Vol 44, Issue 78
>
> Send pianotech mailing list submissions to
>     pianotech at ptg.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
>     https://www.moypiano.com/resources/#archives
> or, via email, send a message with subject or body 'help' to
>     pianotech-request at ptg.org
>
> You can reach the person managing the list at
>     pianotech-owner at ptg.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of pianotech digest..."
>
>
> Today's Topics:
>
>    1. Re: bad technique (tnrwim at aol.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 28 Jun 2012 14:43:02 -0400 (EDT)
> From: tnrwim at aol.com
> To: joegarrett at earthlink.net, pianotech at ptg.org
> Subject: Re: [pianotech] bad technique
> Message-ID: <8CF2374FBAED428-9C0-27B03 at Webmail-m112.sysops.aol.com>
> Content-Type: text/plain; charset="us-ascii"
>
>
>
>
> Wim,
> ad advice, if the thing needs to be used again. Just what you need is a
> eird brass nut that is all gowed up from banging on it with an
> nappropriate tool! I guess that's why I'm the CotTP.<G>
> oe
>
> Joe
>
> If you do as I suggested, "tap gently", you won't have that problem .Of
course, there are limits to "gently" and sometimes the thing is frozen, and
you have to use brute force. In that case, even the tool you suggest will
mar the brass. But most of the time gentle tapping will do the job. 
>
> Wim
>
>
>
>  
>
>
>
> -----Original Message-----
> From: Joseph Garrett <joegarrett at earthlink.net>
> To: pianotech <pianotech at ptg.org>
> Sent: Thu, Jun 28, 2012 5:05 am
> Subject: [pianotech] bad technique
>
>
> Wim said:
> Gene, 
> ou can make a screw driver as Joe suggested. But the way I used to remove
> hese nuts is by gently tapping on one side of the nut with a small screw
> river blade. Depending on how tight it is, determines the size of the
> ammer, and the force used to loosen it." 
>
> im,
> ad advice, if the thing needs to be used again. Just what you need is a
> eird brass nut that is all gowed up from banging on it with an
> nappropriate tool! I guess that's why I'm the CotTP.<G>
> oe
>
> oe Garrett, R.P.T.
> aptain of the Tool Police
> quares R I
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL:
<https://www.moypiano.com/ptg/pianotech.php/attachments/20120628/38c1a352/attac
hment-0001.htm>
>
> ------------------------------
>
> _______________________________________________
> pianotech mailing list
> pianotech at ptg.org
> https://www.moypiano.com/resources/#archives
>
>
> End of pianotech Digest, Vol 44, Issue 78
> *****************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120630/4462ef67/attachment.htm>