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> early parking brake handle, need help figuring out mechanism - DONE!
roadster fan
post Dec 15 2007, 10:49 PM
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Project Frankenstein !!!!!!!!
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The parking brake handle on my 71 was missing some parts and was not functioning. I have it just about done, but can't figure out how the pawl(?) (blue item in picture below) is supposed to maintain contact with the other toothed part. The pushbutton releases/pushes the top of the pawl disengaging it from the other part, but I do not see what is supposed to put tension on the pawl to reingage it with the other toothed part.

I assume there is a spring of some sort missing but I do not see where it would mount. the fixed handle on my 73 has a slightly different pushrod that engages the top of the pawl, and releases and engages both.

Anybody have the answer to this one? I know you are out there! (IMG:style_emoticons/default/smile.gif)

Jim

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roadster fan
post Dec 17 2007, 11:09 PM
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Project Frankenstein !!!!!!!!
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Group: Members
Posts: 1,009
Joined: 24-November 05
From: Aptos, CA
Member No.: 5,184
Region Association: Northern California



I ended up taking the clip for a zebra m-301 mechanical pencil and bending it to shape. I attempted to make the factory style but it requires quite a bit more material and I could never get my prototype to stay in very long (bent from thick wire coat hanger). A flat piece of spring steel may work for the factory style, but I didn't have any on hand.

So I took the clip off the pencil and got to bending with needle nose pliers. The spring I ended up with works great, is retained by the crimps at the bottom of the handle, and was cheap to make. I installed the handle in the car today and could not be happier. It is really nice to have a parking brake, talk about peace of mind.

The graph paper above is 8 squares to an inch, if you want to make a similiar piece. once it is bent, it snaps into place with a little fiddling, and is held in with spring tension. Hope this helps. The photo below is the type of pencil I stole the clip from. It is the right width and length to make the piece. There are other pens and pencils with a similiar clip, the key is finding one with a flat profile, many are not. Go raid the office! Oh, and the steel doesn't like to be bent back and forth, it will break. Bend one direction only, plan ahead.

Jim

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