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Mangled my brake dust shield trying to get drum off!

Discussion in '1st Gen. Tacomas' started by Moco, Jun 9, 2013.

  1. Moco

    Moco [OP] Well-Known Member

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    Guys,

    I was trying to pull my rear drums to take a look at the condition of my brakes. I tried the old M8x1.25 bolt trick but that didnt work. I then resorted to trying to gorilla the drum off withi a long screwdriver/prybar. While I got the drum to move a bit, I mostly succeeded in mangling the hell out of my brake shield.

    Now I get this low pitch grating/scratching/squeeling noise from that wheel (driver rear). Is this as a result of the mangled brake shield interfering with the drum or the wheel itself? I know this was a result of the brake shield because I didnt have the noise prior to messing with it.

    Is my only solution to replace the brake shield? And if so, does that require pulling the whole axle?

    Thanks,
    Eric
     
  2. maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    On the 2nd gens you have to press the whole damn bearing off the shaft. Not positive on 1st gens but my suggestion is to try and straighten it. Back off the shoes until you can fit the drum up and spin it by hand. Find where it rubs and then massage it out of the way.

    Next time, use the adjuster to back of the shoes before you pry the drum off.

    Just FYI it's a backing plate if you go to search for the part.
     
    Last edited: Jun 9, 2013
  3. Buckoma

    Buckoma Well-Known Member

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    Bend the dust shield back slightly away from the drum/hub. No biggie.
     
  4. Moco

    Moco [OP] Well-Known Member

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    Sounds like it worth a try. So the noise is coming from the friction between the drum and shield?

    I guess I could kill two stones by removing the drum first and then re-shaping the shield.
     
  5. TACO TX

    TACO TX Well-Known Member

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    Next time you can try turning the adjuster to loosing the shoes off the drumb first if its tight, then the bolt trick. Turn of the bolt, whoop with BFH, turn of the bolt, whoop with BFH.
     
  6. Buckoma

    Buckoma Well-Known Member

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    Yeah, it's happened on my front end a couple times... loud "scraping" because the shield got pushed in too much. I assume it works the same for the rear.
     
  7. Moco

    Moco [OP] Well-Known Member

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    For future searchers regarding drum brakes - Parts Plus has a really good 5 page primer on servicing drum brakes, broken down potato head style for non-pros:

    http://www.partsplus.com/PDFs/DrumBrakes.pdf

    EDIT: Steps 9-12 show really well how to adjust the adjuster to take a stuck drum off.
     
  8. Moco

    Moco [OP] Well-Known Member

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    OK.

    A bit of a dumb question guys... which direction should I turn the star adjuster to loosen the drum.

    If I'm working on the driver's side rear wheel, do I apply the blade of the screwdriver up towards the sky, turning the adjuster up or do I apply the blade of the screwdriver down towards the ground, turning the adjuster down?

    The reason I ask is that I attacked the drum again tonight, I managed to wiggle my upper body in the wheel well so I could see the teeth of the adjuster, I think I managed to turn the adjuster about 5 clicks 'up'. This resulted in a completely stuck drum - where as before I was able to slide it back and forth on the hub about a 1/4 in.

    It was dark, late, and my screwdriver was too long for the space I was working in so I gave up without adjusting the opposite way to see if it made any difference. Did I go the wrong way?

    Also, I read elsewhere that as a last resort you can remove the axle and bang the studs on a piece of wood to free up the drum. Is the axle only held on by the 4 bolts on the backing plate?
     
  9. Southern01Taco

    Southern01Taco Well-Known Member

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    I know this probably goes without being said but just to make sure you know, if you have the parking brake set, it will make it ridiculously hard to get the drum off. The drum shouldn't be hard to get off every single time.
     
  10. Moco

    Moco [OP] Well-Known Member

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    Yes, absolutely. The parking brake was in fact off. Im always sure to make sure thats off when working on rear brakes.
     
  11. Southern01Taco

    Southern01Taco Well-Known Member

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    Ok, just making sure. I've done it on accident before :eek:, is the reason I ask.
     
  12. tan4x4

    tan4x4 Well-Known Member

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    Yes you did. Now you are worse off.

    To backoff the adjuster, however, you need an extra tool to stick in there to push on the thingee that prevents the adjuster from going down (the way you want it to go). Kinda like the come-along mechanism. Its pretty awkward, but that's what you have to do. Hope you have a lot of patience. You will not hear any clicking, though, since you have pushed the thingee away that makes the clicking.

    This stuff really makes one appreciate disk brakes.
     
  13. YOTA LOVER

    YOTA LOVER Stay Calm, and Fire For Effect

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    I always go in one direction until either: 1. I have gone the wrong way and pushed the pads against the drum or 2. I have loosed them up.

    If you're really lucky you can spot the "catch" mechanism on the adjuster, which under normal use only allows the auto adjuster to move in one direction (tighten the shoes as they wear down)... That's usually how I tell which way to turn it because I can never remember. And then I believe the adjuster will turn the opposite direction on the other side.

    Either way, you have to back them off before you try and remove the drum (as others have mentioned earlier). The shoes wear a groove into the drum over time, and there is a small lip of material which remains, and if the shoes aren't backed off they remain inside that groove and the drum isn't coming off. Once they are backed off you can pound on the drum with a heavy weighted plastic/hard rubber mallet to break up the rust holding the drum onto the axle while using the "bolt trick". It'll come off.

    I've never ever had to pull an axle to get a drum off.
     
  14. Moco

    Moco [OP] Well-Known Member

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    Yes, Im 31, the first few cars I've owned have all been disc brakes all around and Im unfamiliar with drums. Pulling a caliper off and sliding rotors out sure as hell beats wrestling with this medievil design with drum brakes.

    To top it off, the adjuster slot is on the top end of the backing plate which makes it necessary to contort ones self to get a view of the adjuster wheel.

    Now to be honest, I was expecting a 'thingy' but I couldnt find the thingy to lift up. I could clearly see the adjuster wheel though.

    At least the noise from earlier is gone now. So that's a positive.
     
  15. Moco

    Moco [OP] Well-Known Member

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    Roger.

    Im going to keep working on it, till I get it. My brakes work OK, so Im not stuck absolutely needing to get them off, Im just doing this because I need to eventually do brakes on this truck and I figure its better to do it now then later.
     
  16. tan4x4

    tan4x4 Well-Known Member

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    Yeah, its a bitch to get at. Pre-86 Toyota 4x4's had a different design, and the adjuster access hole was on the bottom.
    The 'thingee' is called the 'automatic adjuster lever', I just looked it up in my Haynes manual. You really can't see it since its behind the star wheel, you have to shove an awl behind the star wheel, to push it away from you. Then, while holding it away, turn the star-wheel down with a screwdrive, or brake adjusting tool. I have attached a photo (taken from the drum side obviously) that I took when working on my brakes many years ago

    [​IMG]
     
  17. Moco

    Moco [OP] Well-Known Member

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    Ohhhhhhhhhhhhhhh! Son of a bitch. OK, that makes more sense - the part about shoving it away. I was trying blindly lift it up and out of the way, your description makes more sense.

    Thanks.
     
  18. snoope

    snoope Well-Known Member

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    WOW, PLEASE RE-READ your Parts Plus info and the last 3 post....

    Brakes are the LAST thing you want to make an OOP'S on..

    Be patient and careful...by the time you finish with this "drum removal" one of two things will have happened ;
    1) you understand and respect them enough to work on them or
    2) you save up enough $$$ to have a "Tech" do the work for you and make it home safely after every ride...


    One last item...Use a dead blow instead of a ball pien hammer :)...My son forgot that 1 step and luckily Advance had one drum in stock....his final "Whack" broke the outer rim off my drum............Patience, patience, patience
     
    Last edited: Jun 11, 2013
  19. Moco

    Moco [OP] Well-Known Member

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    Thanks for the input. I'll be fine.

    I dont do my own maintenance because I dont have money to pay a tech to do it. I do it because I enjoy it and I like to know the intricacies of what Im driving. I value safety and use OEM or like quality parts in important systems.
    It just so happens, Im not that experienced with drum brakes.
     
  20. Moco

    Moco [OP] Well-Known Member

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    Rick,

    Thanks a million for the photo. Finally got that stuck drum off - but not before I spent an hour on my back srtruggling with and cursing the wheel adjuster...

    ... only to find out...

    I had my parking brake on! :eek::eek::eek:

    Anyway, after release the parking brake, I was able to adjust the wheel the correct way. A few turns at the adjuster, some WD40, and about 3 dozens slams of the 3lb hammer and the drum came right off! :D

    Your photo really helped align the blade of the screwrdiver on the automatic adjuster plate. Whats funny is after getting the drum off, it made so much more sense to look at and manipulate the adjuster and plate from the front.

    Anyway, drums and shoes look to have some life still in them, but I'll consider doing brakes sometime soon just because.

    Thanks again.
     
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