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Hot Rear drums

Discussion in '2nd Gen. Tacomas (2005-2015)' started by caseman121, Aug 6, 2022.

  1. Aug 6, 2022 at 9:11 PM
    #1
    caseman121

    caseman121 [OP] Member

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    Hey, has anyone got good tricks for adjusting rear brakes after new drum and shoe kit installed.
    My current issue is the passenger side is getting nuclear hot, to the point I aired the tire down because the rim was getting heat soaked and tire pressure was climbing. I was worried about a brake fire.
    I adjusted with star wheel so that there was a slight grab. Pumped brake a bunch and adjusted again to similar amount of friction.
    My e-brake appears to not fully disengage so I figured I just won’t use it(haven’t made any E-brake adjustments yet) I’ve had car jacked up a few times to check for brakes rubbing. Didn’t really notice any large drag after pumping brake pedal)
    My best guess is after riding the brakes while driving they aren’t releasing very quick and maybe sometimes sticking on momentarily? Maybe air in system…Despite not opening the system? maybe Piston is on its way out? the E-brake is doing weird stuff? Or I screwed up the install on passenger side. I never really looked into if this was an issue before replacing drum and shoes but I feel I would of noticed because it gets HOT!
    Trying to avoid burning my truck down. Any advice is appreciated
     
  2. Aug 6, 2022 at 9:15 PM
    #2
    JJ Customs

    JJ Customs Supreme Leader!

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    A few additions to make me feel cool.
    I would jack it up and pull both rear wheels then pull the drums and make sure you got it right. If it got that hot you probably need to replace that drum anyway. Look at the wear on the shoes and that should tell you where the issue is. Check your springs, if you have drag that’s what will cause that most of the time. Could very well be e brake related also.
     
  3. Aug 7, 2022 at 2:15 AM
    #3
    muddog321

    muddog321 Well-Known Member

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    First verify you reinstalled all the hardware correctly (look side to side). This is why I only do 1 side at a time so I have reference or take pics.
    Did you pull the adjuster apart and internally grease it so it rotates freely.
    Is the parking brake lever installed correctly on that side.
    Is the wheel cylinder OK and pins fully seated with no leaks.
    Did you apply some brake grease to the backing plate where the shoes contact so they can move freely.
    Not common, but did you put the pads on correctly as some come with 2 slightly diff sizes leading and trailing.
    And is the new drum truly round as some cheap ones are not so do a side-to-side drum swap and see if problem follows the drum.
    Are your rear wheel bearings good back there as they can generate heat if failing but if good before you did the work then doubt it.
    You can jack the rear up on good jack stands, put front wheel chaulks down, and run it having someone apply the brakes on/off and listen and watch always keeping your body out of the path of travel if it drops of course and in 2-wheel drive only.
     
    caseman121[OP], TnShooter and Marc70 like this.
  4. Aug 8, 2022 at 1:38 AM
    #4
    caseman121

    caseman121 [OP] Member

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    Ok so I fully took apart and inspected passenger side drum and shoe and all hardware/springs. Found that e-brake is was sticking a bit. Was able to get cable loose. Disconnected e-brake under the center console/shifter area to be sure it was isolated from the system. Re-assembled brakes again being sure the springs were correctly positioned, no leaks and lubed up contact points. So I don’t feel it’s a mistake with install. Put the drum on loose with no drag being noted and didn’t make any adjustments on star wheel.
    Jacked up back end and ran in drive while feathering the brake on and off several times. Assuming the star wheel was automatically adjusting shoes where they need to be. Found that passenger tire was stopping slightly earlier than the driver side but then would release fully. It didn’t seem significant to me. Never saw or heard any actual drag.
    Went for a 20 minute cruise while testing brakes along the way. Came back to shop and checked for difference in heat. Passenger side felt hotter but I’m not sure I drove long enough to really test it well.
    Drove the truck home (15 min highway driving) checked temps again at the house, both drums felt even and normal temps to me. Not convinced the issue is fixed just yet. Maybe intermittent sticking with the piston that pushes on shoes? Or something weird happening with weight on wheels that I can’t replicate with truck jacked up. I don’t believe it’s wheel bearing related because there is no side to side slop and it’s definitely the drum that’s getting the hottest. gonna go buy a fire extinguisher just incase lol
    If I keep feeling a substantial difference in heat I might just go buy a new drum and shoe kit from Toyota dealership. these current ones are purchased from
    Napa. Hoping it just fixes itself as brakes wear in more and star wheel auto adjusts correctly? Lol
    Thanks for all the info so far. Keep the ideas coming !
     
  5. Aug 8, 2022 at 12:26 PM
    #5
    Jimmyh

    Jimmyh Well-Known Member

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    Proper rear drum adjustment by the book.

    [​IMG]
     
    TnShooter and JJ Customs[QUOTED] like this.

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