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Unread 10-11-2005, 07:09 AM   #1
Blthomas
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Updated: brakes,the drum is off and it's back together, but the drum won't go back on

Started getting into the Heep some last night. Replaced the rear shackles, while she's on the stands, figured go ahead and check the brakes.

I've only done drum brakes once. I took of the cap, pulled the pin, and cranked off the bigass nut on the end of the axle shaft. I can't find a adjustment on the back of the drum to adjust the brakes down to pull the drum off. I'm not even sure that the Jeeps should have one. Should the drum pop off? I took a mallet to it around all sides and made zippy progress. I'm thinking maybe I need a puller?

Reading the Haynes, it gives multiple scenario's, one having to pull the axle out. I'm not thinking I have to do this. I'm thinking the drum is stubborn.

Any input on what to do, or what I may be doing wrong, that would be great.

Thanks,
Blair

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Last edited by Blthomas; 10-31-2005 at 01:25 PM.. Reason: update
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Unread 10-11-2005, 07:30 AM   #2
CJ51973
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There is an adjusting slot on the backing plate toward the bottom. I might have a rubber cover in it. You DON'T have to pull the hub/axle to get the brake drum off. It might take a little persuasion and some penetrating oil aroung the hub/drum joint but it will come off. Run the adjuster in and have at it.
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Unread 10-11-2005, 07:41 AM   #3
dawgates
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Take a wire brush and brush around where the drum and hub meet. The shoot some WD 40 on the area you brushed off. Let it sit for a minute or two then smack it with a rubber mallet. It should come right off, or at least loosen it up.
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Unread 10-11-2005, 07:51 AM   #4
Blthomas
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Thanks for the heads up. When I re-did my 79' F**d's whole system, it went real easy. But I figured I better ask before I go tearing something up with a BFH. I should have looked a little harder at the rear of the drum then, I didn't see the adjusting slot/cover back there.

The P.O. used it as a mud bogger, so everything has a nice 3 inch thick layer of crap coating everything. I just knocked off everything near the wheel but not on the back. I'll brush it off and have another go tonight if it quits raining.

Thanks,
Blair
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Unread 10-11-2005, 05:04 PM   #5
knifeboy2
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Some CJ's also have a few screws holding the drum onto the axle shaft. Look to see if you have any, and if so remove them. You don't really need to replace them though since the wheel holds the drum on. It may just be rusted on too, and then just bang. But replace that big nut and pin before you do anything else.
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Unread 10-12-2005, 08:35 AM   #6
Blthomas
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Funny you mention screws. On our CJ, there a 3 screws in the face of the drum. I haven't tried unscrewing them, and not sure I want to. Looks like they are permantently attached. Drill worthy too.

Thanks,
Blair
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Unread 10-12-2005, 09:49 AM   #7
Aphelion79
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Assuming you have an AMC 20 rearend

THE HUGE BOLT has NOTHING to do with the rear drum... it is used to hold the axle shaft... you need to unscrew those screws, and bang the drum off...

BTW, that axle shaft nut should be tightened somewhere in the vicinity of 220 lbs IIRC!!! Mine took a very slight hit with a hammer on a ratchet to break loose... seriously doubt it was on at the correct torque lol... I don't have my repair book with me so if someone wants to get the exact LBS of TORQUE you need on that bolt, please share! So either way, if you were able to get it off without much effort, its probably a good thing you took it off so you can tighten it back on correctly
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Unread 10-12-2005, 09:54 AM   #8
Blthomas
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I was thinking about those screws. I have feeling they are going to be a ***** to get loose. I see drill bits in my future.
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Unread 10-12-2005, 03:41 PM   #9
Aphelion79
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All I've got to say is... good luck... lol

And I can't remember exactly, but I know on other cars I've worked on usually the tire + lug nuts will hold on the drum quite nicely... hence getting rid of those damn screws by not even putting them back in lol... I don't know If i'd recommend doing that but... if to you it seems like it wouldn't be a problem... go for it


If your tire falls off there ain't gonna be much stopping power back there anyway, lol

Use that information at your own risk, however
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Unread 10-12-2005, 07:27 PM   #10
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As he said, you don't need those screws because the wheel wil hold the drum on.
As far as the torque on the axle nut for stock 2 piece axles, the torque spec is 250 ft lbs. minimum plus whatever additional torque it takes to line the cotter pin hole up with the nut.
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Unread 10-13-2005, 08:32 PM   #11
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Give the screws a few good shots with a hammer and center punch - Then use the correct size screw driver (big). Sometimes they look worse than they are.
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Unread 10-16-2005, 07:24 PM   #12
Blthomas
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Well I got to work on her today and didn't get far.

I ended up drilling out the screws, I chewed up good, even after soaking them and using a large phillips in an attempt to get them out. I rounded the crap out of them. So I drilled them out.

I have hosed her down alot with P'blaster and not making much progress. I can put a prybar between the back of the drum and the hub. I can see where it wants to pull over the wheel lugs, but it seems like the center hub is holding the drum in place. This should separate right there? I'm tellin' ya, I've been pulling like hell too.

I have used mucho spray all over this SOB. I have dialed back the adjuster a god bit. Plenty of free spin. But no matter where I pry I get nothing. I have been pounding with a 3lb hammer too. Any ideas? Could the drum be rusted to the center hub?

I have a pic to help verify that I have a AMC20 and will post it tomorrow from work.

Thanks as always,

Blair
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Unread 10-16-2005, 07:36 PM   #13
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I think you can do that free loan-a-tool thing from Autozone and get a drum brake puller. Granted, I like whacking my Jeep with a BFH as much as the next guy, but whay not take the easy route on this one?
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Unread 10-16-2005, 08:26 PM   #14
Blthomas
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I honestly didn't know there was a drum puller. Ain't that a *****. I'm on that one tomorrow. Work smarter not harder, thats what it's all about. Thanks for the heads up.

Later,
Blair
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Unread 10-16-2005, 09:18 PM   #15
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http://shop.store.yahoo.com/brandspl...6-otc4607.html

removed many a tuff screw with these....
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