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Unread 05-15-2008, 06:41 PM   #1
odwaud
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Emergency Brake

When I first got my jeep about 6 months ago, my E-break worked, but not very well. It has just gotten worse over time till the point it is useless. I took my rear wheels off and looked at the break shoes, they arent very worn at all. They still have alot of miles left in them. I have tightened the e-break line as tight as it goes. The e-break still doesn't work... any ideas on whats wrong with it? Thanks.

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Unread 05-15-2008, 06:46 PM   #2
Varnish
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Did you adjust your rear brake shoes? There is the little rubber access hole in the backing plate where you can slide a flat tool in and manually turn the adjuster one direction (I can never remember which, up or down). You should move the shoes out until they just start to drag as you turn the wheel (jacked up of course).
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Unread 05-15-2008, 06:47 PM   #3
wushaw
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Take your shoes off and pull the E brake handle and see if it actually moving any components....if not replace, lube, bend, tweak or whatever it takes to make it work again.
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Unread 05-15-2008, 06:48 PM   #4
Jerry Bransford
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You don't adjust the parking brake (not "break") with the parking brake cables, you use the little adjustment star wheel inside the brake assembly that can be accessed from the outside rear of the brake assembly.

This photo shows it from the inside, there's a little push-in rubber cover you remove from the back side to get to it without removing the tire and wheel.



You can adjust it with a big flat-bladed screwdriver or a brake adjustment tool that is cheap to buy.
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Unread 05-15-2008, 06:59 PM   #5
XXRider
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Wow perfect timing. I was going to ask almost the same question. Is the information for disk brakes or drums?

I haven't adjusted mine yet, but the lever seems to keep getting higher, was going to ask how to adjust them.
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Unread 05-15-2008, 07:03 PM   #6
odwaud
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when i ajust the ajustment star wheel, the ajuster lever does not catch it or prevent it from turning back to its original position.
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Unread 05-15-2008, 07:06 PM   #7
Jerry Bransford
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Quote:
Originally Posted by odwaud View Post
when i ajust the ajustment star wheel, the ajuster lever does not catch it or prevent it from turning back to its original position.
Keep at it, that's how to do it. Maybe you should take the wheel and drum off so you can see how to turn it to make the brake shoes spread apart more.
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Unread 05-15-2008, 07:12 PM   #8
odwaud
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Originally Posted by Jerry Bransford View Post
Keep at it, that's how to do it. Maybe you should take the wheel and drum off so you can see how to turn it to make the brake shoes spread apart more.
I have taken the drum off and i do understand how the breaks spread. Is the ajustment lever suppose to catch the star wheel? Because my does't.
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Unread 05-15-2008, 07:21 PM   #9
Varnish
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Yes, there should be a lever that ratchets across the star wheel and prevents the pads from retracting. When you are adjusting the starwheel you should only be able to turn it one direction - the other direction is stopped by the lever. If yours isn't engaging that is probably why they are backing off and the ebrake isn't working.
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Unread 05-15-2008, 07:23 PM   #10
odwaud
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what parts do i have to replace to get the ajustment lever working again?
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Unread 05-15-2008, 07:41 PM   #11
tangofox007
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Quote:
Originally Posted by odwaud View Post
what parts do i have to replace to get the ajustment lever working again?
If your adjuster is cable operated, make sure the cable guide is fully seated. If it's not, the resulting slack will cause exactly the problem that you describe.

Last edited by tangofox007; 05-16-2008 at 07:23 AM..
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Unread 05-15-2008, 11:54 PM   #12
Varnish
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Quote:
Originally Posted by odwaud View Post
what parts do i have to replace to get the ajustment lever working again?
If the starwheel moves freely, check that all the springs are there and in the right place and pulling in the right way. Hopefully the other side is working properly and can be referenced.
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Unread 05-16-2008, 02:16 PM   #13
Ole Yeller
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It's been a long time since I messed with drum brakes, but, the picture that Jerry posted above doesn't show the piece that would stop the star wheel from going either way I've seen both ways, but mostly with the one way stop. Either way, the brakes shouldn't back off. I would guess that your brake shoes are in such good shape because they aren't helping you stop either. If you can lift both rear wheels off the ground, you can spin the tires by hand as you tighten the adjustment. When you start to hear the shoes rubbing you have gone far enough.
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Unread 05-16-2008, 02:36 PM   #14
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Modern drum brakes have self adjusters in them. (that picture that Jerry posted looks like a trailer brake setup) Everytime you apply the brakes the adjusters work to turn the adjuster wheel, moving your shoes outward. If you find a big parking lot with no one around, back up and apply the brakes...easy does it. Do this a few times and your brakes should be adjusted correctly, along with your parking brake.
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Unread 05-16-2008, 02:43 PM   #15
Ole Yeller
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You sir are exactly correct. I told you it had been a long time since I worked on drum brakes.

It still sounds like his rear brakes are not adjusted properly.
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