[CAUT] Teflon Bushings

Horace Greeley hgreeley at sonic.net
Sun Nov 28 23:17:00 MST 2010


Hi, Dale,

At 08:48 PM 11/28/2010, you wrote:

>  I agree.
>  When I was a kid in 1972 I used Freddies method on a new D at a 
> local college.  It has held up well all these years. Now the action 
> is tired and I will get a chance to revisit this old friend this 
> year and see how they held up. The problem was that the parts were 
> never fit correctly in the mother ship.  This issue could have 
> easily been resolved in the factory at the time of manufacture.

Yes...

>   Water under the bridge, Aye Horace?

Sadly, yes.  As you note, these actions really can work very, very 
well for a very long time...if they are set up well to begin with.

Best.

Horace


>   Dale Erwin
>
>It wasn't until things were largely at crisis level that Freddie 
>Drasche started teaching his home-grown technique of rolling brass 
>center pins between two files....
>
>Too bad...still an excellent concept...once fully worked through, 
>it's very stable and will last a long time.
>
>Best.
>
>Horace
>
>
> >Regards Roger
> >
> >
> >At 10:01 AM 11/26/2010, you wrote:
> >>Roger & Ed, thanks for the encouragement. Here's a photo of the relocated
> >>knuckle and reinforced yoke.
> >>
> >>This is a 1971 L donated to the Cape Cod Conservatory. Heavy action, high
> >>friction readings but no binding components. Moving the knuckle 
> should drop
> >>the friction to a reasonable level. The original knuckles were 11mm wide.
> >>
> >>This produced excessive after touch and a drop screw head 
> buried >>into the flange.
> >>I'm confident the knuckle relocation and size reduction will 
> bring the action
> >>around to a manageable regulation.
> >>
> >>One argument to be made for not replacing the shanks is that 
> these >>are seasoned,
> >>new ones would travel and twist in the coming years. I think 
> Teflon >>bushing are
> >>Ok, it's the unstable wood around them that causes the problems.
> >>
> >>Now on to graduating their weight and repinning. I'll also 
> be >>installing underlever
> >>assist springs and replacing the single string felts. Fun & Games.
> >>--
> >>
> >>Regards,
> >>
> >>Jon Page
> >>
> >>
> >>__________ Information from ESET NOD32 Antivirus, version of 
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> >>
> >>The message was checked by ESET NOD32 Antivirus.
> >>
> >><http://www.eset.com>http://www.eset.com
> >>
> >>
>



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