rear parking brake adjustment

Discussion in 'General Motoring' started by Alex, Oct 23, 2007.

  1. Alex

    Alex Guest

    Hi,
    I recently changed the rear brake pads on my inlaws Acura TL 2.5.
    Everything went well except that I wasn't sure how to adjust the
    parking brake. I didn't want to just take up more cable on the
    adjustment bolt. I just couldn't tell how to tighten the parking
    brake cable again after I screwed the pistons back into the caliper.
    Can anyone point me to a web site with instructions on how to do
    this? TIA.
     
    Alex, Oct 23, 2007
    #1
  2. Alex

    jim beam Guest

    if you've done the pads right, and they're fully self adjusted, you
    shouldn't have to touch the cable.
     
    jim beam, Oct 23, 2007
    #2
  3. Alex

    motsco_ Guest

    ----------------------------

    When in doubt (on US cars anyway), you can try driving backwards slowly
    and yanking up on the brake lever repeatedly. It (on some vehicles)
    notches up the adjusters to where they should be. Did you look at the
    brake stuff at www.tegger.com?

    'Curly'
     
    motsco_, Oct 23, 2007
    #3
  4. Alex

    jim beam Guest

    doesn't work on hondas tho. all adjustment is done by application of
    the service brake.
     
    jim beam, Oct 23, 2007
    #4
  5. Alex

    Tegger Guest



    How many clicks of the handle are needed to fully apply the parking brake?

    If you're between six and ten, you're fine.

    Overtightening the parking brake cable will cause the rear pads to drag and
    overheat.
     
    Tegger, Oct 23, 2007
    #5
  6. Alex

    Josh S Guest

    It wouldn't work for my Chrysler either. It has separate shoes for the
    parking brake, the rear disks are just for regular braking.
     
    Josh S, Oct 23, 2007
    #6
  7. Alex

    MLD Guest

    After brake replacement on my Accord I thought that my parking brake
    required too many notches (10 or so). What I did was to back out of my
    driveway (not too slowly) and then step on the brake. After several times I
    noticed a significant improvement--down to about 7 notches.
    MLD
     
    MLD, Oct 24, 2007
    #7
  8. Alex

    jim beam Guest

    the effect you observe may indeed true, but backing out of the driveway
    has nothing to do with it - sitting on the driveway and simply pumping
    the brake pedal hard will have exactly the same effect. next time you
    rotate the tires, take off a brake drum and check out the braking
    mechanism - it's a cunning design that takes advantage of the service
    brake for self-adjustment.
     
    jim beam, Oct 25, 2007
    #8
  9. Alex

    Alex Guest

    It's more than 10 clicks. Before the brake pad change the parking
    brake handle
    would end up approx. 20 degs up from horizontal. Now it is closer to
    75 degs.
    It still catches enough to keep the car from rolling, but from working
    with other
    cars I know that less than 10 clicks is the norm.
     
    Alex, Oct 29, 2007
    #9
  10. Alex

    Tegger Guest



    The angle of the handle is irrelevant. It's the number of clicks that
    matters.

    If the number of clicks needed is eight or above, then the cables
    probably do need to be adjusted.

    However...

    -- Make 100% certain the parking brake cable ends are pivoting properly
    on the calipers' levers. This is critical.
    -- Make sure you're NOT using aftermarket pads.
    -- Make sure both pistons are moving freely in their bores.
    -- Make sure neither the calipers nor the pads are seized.
    -- Make certain that BOTH parking brake caliper levers rotate when the
    handle is pulled, and that BOTH wheels are held by the parking brake so
    that you cannot spin them by hand (if one is still spinnable while the
    other is not, then something is seized somewhere).

    If the above five items are proven to be true, then:
    1) back the cable adjustment off so that both caliper levers are sitting
    against their pins;
    2) then adjust the cables so that the parking brake takes six clicks to
    fully hold the car on an incline.

    With the cables thus adjusted and the parking brake OFF, BOTH rear
    wheels should spin freely when spun by hand. Both wheels should
    conitinue to spin when you stop pushing, and should spin about equally
    freely. With the handle pulled up, neither wheel should be spinnable by
    hand no matter how hard you push.
     
    Tegger, Oct 29, 2007
    #10
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