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Old 03-24-2018, 02:35 PM   #1
walls
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Default rear brake drum question

I'm swapping rear brakes from one car to another.
Old ones are worn, new ones were rebuilt recently and come with cast drums.
I've swapped the backing plate as well.

Is there something I'm missing or doing incorrectly?
I can't seem to get the drum back on and cannot tell if it's hitting somewhere.
I just removed them from the other car, so I know they fit before.
Any thoughts?
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Old 03-24-2018, 02:43 PM   #2
BillCNC
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Default Re: rear brake drum question

Quote:
Originally Posted by walls View Post
I'm swapping rear brakes from one car to another.
Old ones are worn, new ones were rebuilt recently and come with cast drums.
I've swapped the backing plate as well.

Is there something I'm missing or doing incorrectly?
I can't seem to get the drum back on and cannot tell if it's hitting somewhere.
I just removed them from the other car, so I know they fit before.
Any thoughts?
Try screwing the adjusting wedges in a little and/or swap wheels around.

Did you disassemble the brakes at all or just swap loaded backing plates?

Regards
Bill
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Old 03-24-2018, 02:46 PM   #3
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Default Re: rear brake drum question

Have you backed off the adjusting wedge as far as it will go? I note you have beveled the main brake shoes, which is good, but I usually take that bevel back about a half inch so there’s no edge to catch on.
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Old 03-24-2018, 03:34 PM   #4
JBill
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Default Re: rear brake drum question

If you've connected the brake rods, you might try disconnecting them. The adjustment might be very different now that they're fastened to different brakes, especially since you've said the previous ones were quite worn. Just a thought.
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Old 03-24-2018, 05:12 PM   #5
walls
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Default Re: rear brake drum question

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Originally Posted by BillCNC View Post
Did you disassemble the brakes at all or just swap loaded backing plates?
Bill
Disassembled the brakes, then removed/installed the backing plates
Quote:
Originally Posted by 700rpm View Post
Have you backed off the adjusting wedge as far as it will go? I note you have beveled the main brake shoes, which is good, but I usually take that bevel back about a half inch so there’s no edge to catch on.
I backed off the adjusting wedge completely, I’ll check the bevel.
Quote:
Originally Posted by JBill View Post
If you've connected the brake rods, you might try disconnecting them. The adjustment might be very different now that they're fastened to different brakes, especially since you've said the previous ones were quite worn. Just a thought.
Not connected yet.

Guess do some measuring and check back
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Old 03-24-2018, 05:23 PM   #6
Bill G
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Default Re: rear brake drum question

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If I rotate the picture so it is right-side-up, I notice a bit of a pucker in your e-brake lining at about the 2:00 position.

When I did my brakes last fall, I ordered new e-brake linings that I had to rivet on myself. The pre-drilled holes did not fit the band exactly and some puckers resulted. The e-brake band and lining have very little clearance. I had to get out my multi-tool and do a bunch of sanding on the pucker to round it back out.

You can easily check if the problem is the e-brake or not by taking the e-brake lining off entirely and try putting the brake drum back on without the e-brake. That way, you can narrow the issue down.

Also, make sure that the brake sets you brought over from the other car match to the same side as far as the drum is concerned.
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Old 03-24-2018, 05:58 PM   #7
Jacksonlll
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Default Re: rear brake drum question

Isn’t that back plate on upside down?
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Old 03-24-2018, 07:17 PM   #8
walls
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Default Re: rear brake drum question

I took it apart, put it back together and the drum goes on.
I’m embarrassed to say it, but I think I had the shoes reversed.
Only thing I can think of.

Thanks for the help
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