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OMG - Bleeding brakes, I've hit a mental block

Discussion in 'Early CJ5 and CJ6 Tech' started by molsenice, Apr 21, 2008.

  1. Apr 21, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
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    most likely going to get slammed for this - but I have to vent somewhere. the victom

    64cj5 - complete restoration, D27 up front with a disk brake swap from a 78cj7, D-44 rear, 10" drums

    Calipers, hoses, steel lines are all new. Master cylinder and power booster are remanufactured - the only place I could find it was from some place in South Carolina that I got ahold of through my local NAPA.

    Proportioning valve - the pin does move - there are no leaks

    I have searched and read till I feel like I am wandering in the desert at night with no light.

    I bench bled the master prior to install, all bleeders are at 12oclock.

    The pedal goes to the floor. There is some stopping, but very little, and I can not lock the wheels up at all.

    I feel like I am repeating over and over and over with no improvment.

    Somewhere I read that the PP Valve needs to have the pin held on some styles, pushed on some styles and left alone on others. I am lost:oops:

    The jeep is on the road since I got a letter from the insurance Co. that in NYS it is illegal to have an unregistered, but insured vehical - go figure, my 10 day temp inspection is just about up and I am still messing with getting decent stopping power

    Thanks for any input: Fred Flinstone:? (molsenice/Fran)
     
  2. Apr 21, 2008
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    is your PP valve adjustable?.....I have a Wilwood and it works best opened/adjusted all the way out....had similar symptoms until I adjusted it this way
    Jim S.
     
  3. Apr 21, 2008
    DrDanteIII

    DrDanteIII Master Procrastinator

    Milford NJ 08848
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    did you adjust the rears up nice and tight? I'd bet that they are out of adjustment or the adjuster is in backwards.
    If not...
    I'd start with a "gravity bleed" Just open all the bleeders and watch the fluid level, let gravity do its thing for an hour or so. You'd be surprized how well this works.
    Are you bleeding by yourself? That is tough.



    Off topic, I see you are in Glenns Falls. My Inlaws live over in Lake Luzerne. Really nice area. Actually I'm headed up there on friday for the weekend.
     
  4. Apr 21, 2008
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    one other thing I thought of.....you have the big rear reservoir plumbed for the front, and small reservoir plumbed to the back? makes a difference DAMHIK
    Jim S.
     
  5. Apr 21, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
    Joined:
    Jan 9, 2007
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    This weekend, north of here in Minerva is a jeep event A Sporties - I will be there with the 64 and a 92YJ I picked up:beer:

    will try the adjusting of the rears, then the gravity trick

    Man is this frustrating:oops:

    As far as the PP valve - no clue, it is a stock valve I believe - adjusting it would entail ????
     
  6. Apr 21, 2008
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    if you're going to bleed these yourself, I'd suggest a MityVac or speed bleeders. The MityVac attaches to the bleeder nipple and applies a vacuum to the brake cylinder. Speed bleeders are 1-way valves that screw in place of the original bleeder screws. Both should be available from retail sources - I know that Harbor Freight stocks the MityVac.

    If you have PV that needs to be held open, it will have a little button on the side of it that can be held open with a special tool, like a metal clip.

    I'll check about the PV in my '77 manual when I get home; no guarantee, but it's probably the same.
     
  7. Apr 21, 2008
    DrDanteIII

    DrDanteIII Master Procrastinator

    Milford NJ 08848
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    Hmmm..... I'm not gonna have my jeep up there though. Taking the tahoe to haul a trailer. the FIL does have an extra TJ though... :twisted:
     
  8. Apr 21, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
    Joined:
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    ok - the remand master/boster has bleeders in it - redid the entire process minus the holding open of the PP valve.

    Both sides of the master are the same size - the donor had larger rear drums.

    dismanteled the rears - there are no adjusters on the D44 from 64:mad: however the pads look like they got fluid on them at some point and have fouled.

    Bled the master - got all air out - the front was turning to foam - so there was one problem of many.

    after bleeding rear pss/ rear driver/ front pass/ front driver, the front driver side vomited air like no tomorrow - though I had it - nope:mad: actuall got worse stopping ability

    will try and hold open the PP valve by pulling the pin and using a pair of needle nose vice grips on it:?, then re-bleeding another QUART - yes used a quart last time - oh well

    Fronts just are contacting - not grabbing all that well - without pumping it up, I can still turn the tire, pumpng, however, will get um tight enough so I can't turn the tire by hand- but driving it - oooof - it is an experiance
     
  9. Apr 21, 2008
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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  10. Apr 21, 2008
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Can you post a pic of your rear brakes? Someone could have put Lockheed brakes on it which would have the cams through the backing plate for adjustment instead of a starwheel style adjuster. Nickmil
     
  11. Apr 21, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
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    no problem - driver side rear drum from the top

    [​IMG]

    upclose showing it is a spring
    [​IMG]

    Bottom
    [​IMG]

    up close - again, a spring
    [​IMG]

    somwhere from the way back machine - when I first took it apart - no adjusters:mad:
    [​IMG]
     
  12. Apr 21, 2008
    mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Peninsula, Ohio
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    In the last photo see the 2 subs about half way up and against the shoes? those are the adjusters. They are manual. They are on an eccentric. Loosen the nut on the back of the backing plate and turn the adjuster until the wheel locks. Then back it off ubtil the wheel turns. Tighten the nut to lock it in position. Each shoe has one. This must be done with the drums on.
     
  13. Apr 21, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
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    will do - they really look just like bolts - but I'm on it :hurrican:
     
  14. Apr 21, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
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    Mortten my friend - I thank you!!!!

    Houston - we can lock um up! :beer:
     
  15. Apr 22, 2008
    DrDanteIII

    DrDanteIII Master Procrastinator

    Milford NJ 08848
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    BANG, first shot off the hip, bullseye. I'm so great! R)

    Glad to hear you got em sorted out.
     
  16. Apr 22, 2008
    molsenice

    molsenice Member

    Glens Falls, NY
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    Yes you are

    Thanks again - all - I think I shoulda gotten slammed anyhow with my rookie frustration - but it has been a LOOOOOONNG build. - still need to try bleeding a bit more, after toolin around, I can build pressure with 3-4 pumps and stop on a dime, but I know that is not how it should be - definate improvment. Never came across adjusters like this before, interesting, seem a whole lot easier than the self adjuster type, I have had nightmares lossening those on a vehicale before to get the drums off

    Still need work getting a solid all the time pedal

    will be shopping for some of those speed bleeders today - they seem to be the cats meow
     
  17. Apr 22, 2008
    mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Peninsula, Ohio
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    Remember that these will need attention depending on how much you drive. As the shoes wear you need to keep adjusting them.
     
  18. Apr 22, 2008
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    Speed bleeders are the cat's a**. You can find them in the Help! section at your FLAPS.
     
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