bushings damaged by wd 40

[Prof. Euphonious Thump]

Wear gasmask, goggles and gloves, take outside and put
on cardboard, and blast all bushings with
non-chlorinated brake part cleaner, then Protek, when
dry.  (  A day or two ) .  I won't be held responsible
if there's plastic in there, or something, which is
damaged by this method, but it's  the most effective I
know of to flush junk out of bushings. ( I did it on a
 terribly verdigris'd Steinway 2 months ago, and its'
still nice and free--even without the Protek ! )
     Thump


--- Gene Nelson <nelsong at pbic.net> wrote:

> Hello list,
> Here again with more bushing woes.
> Have a client with a relatively new (8yrs) Nordiska
> 5'8" and all of the hammer flanges are tight. There
> is no friction problems anywhere else in the action.
> I have reason to believe that these bushings were
> treated with wd 40 or similar - they were discolored
> and appeared a dirty burgundy color compared with
> the typical bright red on whip flanges.
> First visit I chose 7 of the worst offenders and
> repinned. Friction was over 10g at the flange and
> was < 3g after repinning. I used my straight
> broaches to fit the new pin to the bushing - did not
> rebush - and the bushings were very difficult to
> size - had to shave off felt with the cutting part
> of the broach and only went 1/2 size larger on the
> pin.
> Client calls today to say they are tightening up
> again. Have not experienced this before. 
> Also,  I treated all other flanges with ProTek and
> they responded very well - dropped the touchweight
> at the key from 67 to 57g on average. These are also
> tightening up according to the client. Did this work
> only 6 days ago. There are no excessive humidity
> issues in the home.
> Will return to experiment with alcohol water and a
> zapper - electrically heat the pin to iron the
> bushing.
> Anyone experienced with wd contaminated bushings I
> would appreciate advice.
> The client cannot afford to rebush or replace parts
> - repinning appears to have some complication here
> for some reason.
> Thanks.
> Gene Nelson



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