 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
and
the frozen part of the pin.
I then hit upon the idea of drilling out the long piece. I center
punched
it with a transfer punch that just fit the hole, and then carefully
began
drilling it out, going to successively larger bits, until my slightly
off-center
drilling went through one side of the pin. At this point this end
of
the pin had mostly collapsed, and I was finally able to get it to slide,
but
due to the Vise Grip deformation, I was STILL unable to get the pin to
come
out. However I was able to slide it out far enough to leave enough open
space
in the center of the brake arm that I could tap the short end out. With
this
additional clearance I then tapped the deformed and drilled-through but
still
holding, long piece back into the brake arm, just far enough to clear
the
caliper, and pulled the arm free ! Victory was mine. Only three more pins
to go ...
Daren
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
slide,
would prevent it from sliding all the way out since the center of the
pin
was now slightly deformed and knobbly. It was time for the Dremel.
Using the heavy-duty fibre cut-off wheels I carefully cut through the
hinge
pin just above the side of brake arm at the "bottom" end. I reasoned
that
by cutting towards that end I could hope to turn what was now the long
piece by grabbing the deformed center section with the Vise Grips again.
If this were successful I could then twist the long piece out and
then tap the short piece out through the through hole in the blind end.
"If" being the operative word here as this was not successful, at least
not how I intended it to be. I was still not able to budge the long piece,
but I found that I
was
able to loosen the short piece, so that I could now tap it back & forth
between
the bottom end of the hole |
|
|
|
|
|
|
|
|
|
|
Last night I found myself seated at the workbench, staring at my rear
calipers.
It has been many weeks since I'd promised to send Larry Dent my
parking
brakes to use as patterns for his brake-less Elite, and now despite
staring
repeatedly at the offending brake arm hinge pins, they were still
firmly
stuck. It was time to get serious, time to take action. I picked up
the
caliper.
Since nearly every fastener, hinge or pivot on #1188 had been frozen
solid
so far, I was not surprised to find the parking brake arms frozen
firmly
in place. Several shots of penetrating oil and a few whacks with a
soft-faced
hammer got them swinging again, however their steel hinge pins
would
not budge, and budge they must in order to remove the arms.
The first order of business was to remove the tiny cotter pin which
prevents
the hinge pin from walking out of its' blind hole in the caliper.
Well
it's not entirely a blind hole; Girling provided a #6 through hole at
the
blind end so you can push the hinge pin out once the cotter pin is
removed.
I'm sure this works well when you don't have 41 years of gunge
multiplied
by 12 years of corrosion. I was able to remove the cotter pin in
once
piece, and feeling flushed from this victory I attempted to tap the
hinge
pin out via the through hole. I destroyed three #6 machine screws by
using
them as punches before I gave up on that idea. Next I tried turning the
pin
by gripping the exposed area between the sides of the parking brake arm
with a pair of Vise Grips. All I accomplished here was to effectively knurl
the center section of the hinge pin, which, now if I even did get it to |
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
| Girling
LM22 parking brake detail. Visible is the arm, it's mounting pin, it's
"blind" mounting hole, and the tiny cotter pin keeper hole.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|