e-brake question

[Konstantin Bogach]

I tried to clean e-brake cams today using instructions on www.urs4.com
by Fred Munro (very good instructions with pics).  When I pried one cam
out (~1/2'', after removing bolt and spring), sprayed penetrating oil,
turned it on/off several times and had to stop working as friends came
and I could not refuse to play tennis.  Because I don't have garage I
had to put everything back together.  I was not able to push cam back in
even though it rotates freely.  I did not use anything abrasive yet to
clean the cam, just wiped it with cloth.  I pushed really hard but in
vain. Could it be something worse  than corroded surface?

I noticed some rubber seal on the cam.  Does it seal brake fluid insided
the caliper?
The seal is in bad shape. Is it replacable?

Thank you.

Konstantin Bogach
200tq  '89
200tqa '89