10-14-2010, 11:58 PM | #1 |
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Drum brakes leaking
I've been rebuilding my engine and some other stuff in the engine area the last 2 weeks. I get under the truck tonight to take off the manual steering box and notice alot of brake fluid running down the wheel and tire on the front drivers side. I have not had time to investigate yet. So......where do I start? I will check the brake bleeder just in case. But I don't know where to go from there. I've never messed with drum brakes before. Please help.
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10-15-2010, 12:04 AM | #2 |
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Re: Drum brakes leaking
WHeel cylinders, also check to make sure you aren't leaking from the master cyl on the firewall. Check the rubber brake line too!
Last edited by Davetopay; 10-15-2010 at 12:05 AM. |
10-15-2010, 12:17 AM | #3 |
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Re: Drum brakes leaking
Yep, just went thru all 4 on mine. They were all leaking down the backing plates. I think I could have bought rebuild kits for them, but just went ahead and put all new in all 4.
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10-15-2010, 07:55 AM | #4 | |
just can't cover up my redneck
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Re: Drum brakes leaking
For no more than they cost, it is worth getting new, rather than the time and fist-fight that comes from rebuilding them. The bleeder screws can be tough, especially in rust-prone areas.
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10-15-2010, 10:59 AM | #5 |
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Re: Drum brakes leaking
So I need to replace the wheel cylinders, rubber brake lines and bleeder screws? Anything else I need? Man it really excites me when I need advice and make a thread I have always gotten a quick response not from just one person but many!!! Thank you all!!!
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10-15-2010, 10:59 AM | #6 |
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Re: Drum brakes leaking
would b a good thing to do a complete rebuild shoes cylinders etc and dont neglect to check those rubber brake hoses real good to see if they need replacement too
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10-15-2010, 11:03 AM | #7 |
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Re: Drum brakes leaking
Yup,must be that time of year, my rears were leaking too, dont get em at autozone, 1 of the new ones i got started leaking after installation
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10-15-2010, 11:26 AM | #8 |
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Re: Drum brakes leaking
New wheel cylinders come with new bleeders. And they are pretty cheap.
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10-15-2010, 12:26 PM | #9 |
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Re: Drum brakes leaking
New brake cylinders (as mentioned, not worth it to fool with rebuild kits) and eyeball the hoses & shoes. If the shoes have plenty of material but are contaminated by brake fluid, clean 'em up real good with brake cleaner. If they're getting thin, just get new shoes.
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10-15-2010, 05:50 PM | #10 |
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Re: Drum brakes leaking
Ok guys...........can get everything at O'Reily's here but I can't get there freakin drums off. I soaked them in WD40 and hit with a hammer all the way around. And backed off the brake shoes. Any helpful hints on getting those bad boys off?
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10-15-2010, 06:13 PM | #11 |
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Re: Drum brakes leaking
Front drums are riveted to the hubs. The whole thing comes off together. Back ones slide off like normal.
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10-16-2010, 09:34 AM | #12 |
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Re: Drum brakes leaking
So how does that unit come off? Do you have to chisel off the rivet head? Why don't any of the books talk about them being riveted together?
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10-16-2010, 09:52 AM | #13 |
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Re: Drum brakes leaking
i guess GM figured a competent mecanic could see the rivets
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10-16-2010, 10:35 AM | #14 |
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Re: Drum brakes leaking
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10-16-2010, 10:54 AM | #15 |
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Re: Drum brakes leaking
Wow....that was a shot. Sorry I didn't go to mechanics school..........I'm sure like a lot of guys on here didn't either. That's why I use this forum. And I've never worked on drum brakes before, so know I didn't know those were rivets. But again.........why doesn't the service manual or the haynes book mention anything about rivets?
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10-16-2010, 11:11 AM | #16 |
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Re: Drum brakes leaking
No mention in the manual cause they where a complete set and were to stay that way.
If you pop the dust cap off you'll see a big nut and cotter key. Remove the cotter key and loosen the nut off a ways and pull the whole thing toward you. The inner bearing and washer will come out a bit. Take the nut off and pull the whole thing out and catch the bearing. Easy Peazzy!!! You can seperate the drum from the hub if you need to. Put your lugnuts back on to protect the lugs threads and chisel or grind the heads of the rivets off. Use a punch to pop the rest of the rivet out of the hub. Don't leave them in there. I ain't a mechanic either. Just a hotrodder. LOL!!! |
10-16-2010, 11:30 AM | #17 |
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Re: Drum brakes leaking
Dang, that was a shot. I didn't know they were riveted either, the PO must have removed them in the past. My front ones were tough to get off, but just from 20 years of not being off.
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1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty |
10-16-2010, 12:52 PM | #18 | ||
just can't cover up my redneck
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Re: Drum brakes leaking
Quote:
We are all here to help.....but not all help "sounds" like something you may want to hear. Proceding w/o knowing what to do, is not the way to go with some systems....brakes being one of them. Steering is up there too, which generally includes suspension parts, cutting and welding frame rails.....etc. It is good to come here to learn, but I wouldn't expect every word to be blind encouragement. Excercise caution, which also includes not ignoring problems.
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10-17-2010, 10:00 PM | #19 | |
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Re: Drum brakes leaking
Quote:
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10-17-2010, 10:24 PM | #20 |
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Re: Drum brakes leaking
Just keep it all clean. Don't touch your new shoes with greasy hands. I use an aerosol type brake cleaner to clean everything.
If you're putting on new drums beware that the new ones won't have slots in them to access the adjuster star wheel. You might need to make your own in the backing plate. |
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