[pianotech] Joe Garrett's recipe for TP bushings

[Gene Nelson]

Sorry but I do not know what synthetic reducer or pin driving fluid is or is 
intended for.
Earlier, pin driving fluid was described as xylol or something like that??
Besides making the pin drive in easier? does it have and effect on the feel 
of the pin in the block? is it permanent?
I like the feel of the pin now and really do not want to change it midway 
through stringing.
Who uses driving fluid and why? What is the most common driving fluid?
Has anyone ever used violin bow resin?
Gene
----- Original Message ----- 
From: "Clark Sprague" <CSPRAGUE4 at woh.rr.com>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Saturday, December 06, 2008 3:34 PM
Subject: [pianotech] Joe Garrett's recipe for TP bushings


>I did some research in my saved emails, and found Joe's recipe for keeping 
>tuning pin bushings from splitting.   I hope it would be ok with Joe to 
>share it (he sent this to the list in 2006):
>
> On a grand I'm rebuilding the old tuning pin bushings
> were .41 od but I am unable to find a new set that is
> anything smaller than about .44 od.
>
> Would you just not put in bushings on this one, or do
> you have a quick method of reducing the size of the
> bigger bushings?
>
>
> Just soak them in a mixture of Synthetic Reducer and pin driving fluid, 
> until they sink to the bottom of the container. This makes them very 
> pliable and also makes them impervious to splitting. Also, they will not 
> lose their "grip" on the tuning pin. Been doing it for years. Oh, mix 
> 50:1, (That's 50 parts S.R. & 1 part pindriving fluid.
>
>
> Joe Garrett, R.P.T. (Oregon)
> Captain, Tool Police
> Squares R I
>
> Clark A. Sprague, RPT
>