"My bird IS the word" (mybirdistheword)
06/04/2018 at 20:13 • Filed to: Wrenching
1
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"My bird IS the word" (mybirdistheword)
06/04/2018 at 20:13 • Filed to: Wrenching | 1
| 8 |
Just the one.
Weirdly, I had to shave down my new wheel cylinder with a dremel tool to get it to fit,even though it’s an AC Delco “professional”part . No pictures (I forgot) but I’ll post it when I do the other side, . Those assholes.
Apparently the trick to these is to have a third arm, or a helping hand. I struggled with the self adjust because the arm has 2 pieces, 2 springs, and a linkage all to juggle with. Luckily my dad works from home.
Lastly, I think these tires may be a bit dry rotted
winterlegacy, here 'till the end
> My bird IS the word
06/04/2018 at 20:53 |
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I wonder why drum brakes exist when disc brakes are a thing.
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My bird IS the word
> winterlegacy, here 'till the end
06/04/2018 at 20:59 |
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Apparently to give pleb customers the impression that their services cost less. Seriously.
jimz
> My bird IS the word
06/04/2018 at 21:18 |
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it’s been decades since I pulled off a drum, but immediately recognized the GM lever parking brake. IIRC Fords used a cable.
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jimz
> winterlegacy, here 'till the end
06/04/2018 at 21:25 |
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they’re fine as rear brakes for non-performance cars, and are cheap.
yes, they’re cheaper. less metal in the drum, fewer precision-machined parts, and the shoes can be re-lined. plus, drum brakes can be self-energizing (duo servo) which means it only needs a relatively tiny actuating cylinder to activate. then the action of the shoes themselves amplify braking force.
meaning, the shoes are only anchored at the top pin where the retracting springs attach, and connect to each other via a rigid link (which doubles as the parking brake adjuster.) when you step on the pedal, the primary (leading shoe) moves outward and contacts the inner surface of the drum. since the drum is spinning, it tries to “drag” the leading shoe with it. the leading shoe then transmits force to the trailing shoe via the rigid link, forcing the trailing shoe harder into the inner surface of the drum.
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winterlegacy, here 'till the end
> My bird IS the word
06/05/2018 at 00:34 |
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>drum brake is a mechanical nightmare
>”costs less”
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My bird IS the word
> winterlegacy, here 'till the end
06/05/2018 at 12:16 |
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You have to change pads half as often. that’s it.
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My bird IS the word
> jimz
06/05/2018 at 12:18 |
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they’re fine as rear brakes for non-performance cars, and are cheap.
Tell that to the ones on my car. They can’t stop for shit.
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My bird IS the word
> jimz
06/05/2018 at 12:20 |
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The lever wasn’t really a problem believe it or not (except I forgot to put it on first). The problem I think is that when the PO replaced part of the rear floor he had to remove the bracket for the parking brake cable and now that side doesn’t want to work.