505 hand brake Adjust w/ DRUMS
From: Nunez, George (nunezg@bsci.com)
Date: Mon 21 Oct 2002 - 10:10:50 EDT
Martin,
Just replace the cyl, not expensive at all. Peel the rubber booty back a
bit and take a look...if its wet/moist it should be replaced anyway. I like
to do both sides together.
Good time to clean and regrease the threaded automatic adjusters.
Maybe someone on the list can verify the correct sequence for adjusting the
rear drums.
I would say :
1) release all tension on the hand brake sheath adusting nuts
2) turn the automatic adjusters until the shoes just begin to contact the
drum
3) adjust the sheath tension to give 4 to 6 clicks on the hand brake.
George N
Date: Sun, 20 Oct 2002 21:15:25 -0400
From: "Martin Karo" <martin.karo@verizon.net>
Subject: 505 SW8 brake questions
I've revived my '91 SW8; thanks due to Brian Holm, for quickly getting me a
new master cylinder. However, I still have two, er, "issues" that I need
help on.
1) The inevitable happened; I cracked off one of the rear bleed valves (drum
brakes). I tried to "easy-out" it out, and the inevitable happened again;
the easy-out cracked off in the hole. I finally bled that wheel by
loosening the line in; sloppy but it seemed to work. Is there any reason I
can't continue to use that method? If I do need to put in a new bleed
screw, how the devil do I get the old one out? There doesn't seem to be
room to get a drill in there to drill it out, and I'm worried about metal
chips getting in the brake circuit.
2) The brake still seems a little mushy with long pedal travel before
engagement, though vastly improved. I don't think it's air in the line.
One further clue is that the hand brake seems not to engage at all now; you
pull it all the way up without meeting any real resistance. Putting these
two together, I surmise that the rear brake shoes aren't close enough to the
drum. But I thought these were supposed to be self-adjusting. Any hints
what I should be looking for here? Am I completely off track? How does one
adjust the rear shoes? From old Oldsmobiles, I vaguely recall using a
screwdriver through a slot in the back of the plate, but I can't remember
which way to turn it...
TIA for help,
Marty
George Núñez
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