Author Topic: Making new backing plates  (Read 6269 times)

Ricks

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Making new backing plates
« 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 »
Rick

Cocina_47

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Re: Making new backing plates
« Reply #1 on: August 16, 2017, 05:46:23 PM »
Nice work!
No matter where you go, there you are

pd

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Re: Making new backing plates
« 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 . :)
Goes around , Comes around . :)

kartjockey

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Re: Making new backing plates
« Reply #3 on: August 17, 2017, 03:19:59 AM »
Good stuff man!

carryall

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Re: Making new backing plates
« 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!

Bob53

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Re: Making new backing plates
« 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?

Ricks

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Re: Making new backing plates
« 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
Rick

kartjockey

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Re: Making new backing plates
« Reply #7 on: August 18, 2017, 03:57:37 AM »
I have uncovered the clue.  My hunch seems right!

pd

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Re: Making new backing plates
« Reply #8 on: August 18, 2017, 05:30:05 AM »
Hmm , will it 'be' , or will it be "more" ?

Pete . :)
Goes around , Comes around . :)

Ricks

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Re: Making new backing plates
« 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.
Rick

pd

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Re: Making new backing plates
« Reply #10 on: August 23, 2017, 12:42:52 PM »
Lookin' good from here , Rick .

Pete . :)
Goes around , Comes around . :)