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Author Topic: Making new backing plates  (Read 416 times)
RickS
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« on: August 16, 2017, 05:04:30 PM »

I have an old beat up rear brake backing plate that was in less than usable condition.  I have noticed these early plates were built differently, and with a much thinner material than the late plates.  What is a person to do?  Take apart the old plate to use as a template, and build new ones, but with thicker material.

Picture #

1 Old brake disassembled
2&3 Late Style brake
4 Old Style brake
5 New Front Plate
6&7 New rear Brakes

Notice how the late brakes use an offset in the plate, whereas the early use a spacer bar. The spacer is 3/16", but provides little additional support.  The late style is 3/16 plate, much more stout than the 1/8 used in the early style.

I decided to make a couple of front plates while I was at it, as I have another front drum without the matching plate.

I still have to machine the pivots and install them, but I had to order some bar stock to make them.

« Last Edit: August 16, 2017, 05:11:11 PM by RickS » Logged

Rick
cocina_47
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« Reply #1 on: August 16, 2017, 05:46:23 PM »

Nice work!
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pd
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« Reply #2 on: August 16, 2017, 06:44:02 PM »

Looks like those will do the job , Rick .

I'm envious that you have the place and tools to do that .

Pete . Smiley
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kartjockey
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« Reply #3 on: August 17, 2017, 03:19:59 AM »

Good stuff man!
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carryall
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« Reply #4 on: August 17, 2017, 06:00:57 AM »

I suppose a guy could use aluminum in place of the steel if they wanted to shave a little weight off the bike also.  Good work!
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Bob53
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« Reply #5 on: August 17, 2017, 06:37:05 AM »

Good job. I suppose this means your up to something again. 55 beautifully done, stretch in a new home, empty space in the shop. Only a year to Portland. What's next?
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RickS
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« Reply #6 on: August 17, 2017, 07:51:19 AM »

Good job. I suppose this means your up to something again. 55 beautifully done, stretch in a new home, empty space in the shop. Only a year to Portland. What's next?

Top secret, but there is a clue in the backing plates.  Look closely!  Lol
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Rick
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« Reply #7 on: August 18, 2017, 03:57:37 AM »

I have uncovered the clue.  My hunch seems right!
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pd
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« Reply #8 on: August 18, 2017, 05:30:05 AM »

Hmm , will it 'be' , or will it be "more" ?

Pete . Smiley
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RickS
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« Reply #9 on: August 23, 2017, 12:22:47 PM »

I made the pivots for the shoes.  It sure took a lot of filing to get them down to size!  LOL  What I did was mill them flat and then just rounded the corners off with a few passes of the file.  In the 1st picture, left to right is an early pivot, a late pivot and my homemade one. Notice the early style does not have a bottom, but the later style does. I copied the later style, but I don't see any operational difference between the two.
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pd
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« Reply #10 on: August 23, 2017, 12:42:52 PM »

Lookin' good from here , Rick .

Pete . Smiley
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