I have not tried it on a century 21, but have seen
pictures of the pto and it looks identical to my pto.
There is a discription of how to get at the pto of a c
21 at the ten tec museum on line. Even though they
look identical getting to it in the 21 is different
from my corsair.
--- Kent Mandrell <k.mandrell@mchsi.com> wrote:
> Have you tried a chemical fix on the 21?
>
> ----- Original Message -----
> From: "bruce bennett" <k2pdj2000@yahoo.com>
> To: <tentec@contesting.com>
> Sent: Monday, February 20, 2006 8:35 AM
> Subject: [TenTec] pto on corsair lube
>
>
> > Not wanting to tear down my pto, I tried to lube
> the
> > shaft of the pto with wd 40. Seemed to help but
> far
> > from curing the freq shifts I was experiencing
> when
> > tuning the rig. So decided to try something
> different.
> > I have on hand a product called Tetra 500. It is a
> > polymer and not a oil. Very fine particles in the
> lube
> > are rubbed into the surface of bearing
> mechanicaly.
> > Since it is synthetic it should not harden. So
> first I
> > sprayed the shaft of the pto with tuner cleaner
> and
> > ran the dial up and down the band several times.
> > Seemed to help loosen up that stiff grease in the
> pto.
> > I then applied one drop of the tetra product with
> a
> > screwdriver and sprayed again with the tuner
> cleaner.
> > My idea was to help the tetra to penetrate into
> the
> > pto, with the thin tuner cleaner, and it seemed to
> > work. I have had this rig since 1984 and can not
> > recall it working any better than it is now. No
> shift
> > in freq and very easy to turn. Will it stiffen up
> in
> > the future? I don't know, but the advertisement
> says
> > tetra is rubbed into the microscopic pores of the
> > metal so I am hopeful that it is a permanent cure.
> Btw
> > i do not sell or work for the company.
> >
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