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Brake input from those that did various upgrades

Discussion in 'Early CJ5 and CJ6 Tech' started by mickeykelley, Mar 13, 2016.

  1. Mar 18, 2016
    duffer

    duffer Rodent Power

    Bozeman, MT
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    Yep, that helps but only if you don't really immediately need brakes. Drilling the drums is supposed to also help. Think Lynn had a thread someplace on doing that. Anything that speeds the drying process whether heating and/or draining.
     
  2. Mar 18, 2016
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
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    My Jeep has 11" Bendix brakes...and drilled drums. Ive tried both bonded and riveted shoes. Really, nothing seems to help the water crossing dilemma. They just plain suck in that regard.
     
  3. Mar 18, 2016
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    It's always applicable, and it does help some, but it doesn't solve the basic design flaw in drum brakes. Between the trapping of the debris and water inside the system and centrifugal force throwing the water and debris immediately on the friction surface it makes for a problem not easily solved. Drilling the drums helps but it doesn't solve the basic design problem. That's where disc brakes shine. The very design helps to deflect and shed water and debris immediately.
     
  4. Mar 18, 2016
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    It was always a thrill to drive down the river bed, which is the road too.. then the water turns right over a fall, road to the left and a nice steep drop - with no brakes. One of the roads I learned to wheel on, and the reason my main rig has disk up front. Taylor Pass road isn't as bad as it used to be, but the kids prefer to have brakes, and I do to when they are driving my jeep(s).

    The 11" were a great step up, the disk is just better.
     
  5. Mar 18, 2016
    Danefraz

    Danefraz Well-Known Member 2023 Sponsor 2022 Sponsor

    Chico CA
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    thanks for the info, was just curious as to opinions; I get disks are a lot better, and they're easier to work on IMO as well... was just curious on opinions and experiences. All the vehicles I've owned have had disks up front; until I bought my wife's 03 Passat and my '07 F150 they went all-four-corners. The '69 CJ is the first I've had with drums all the way around (and manual masher assist rather than 'power'), it had 10" and I've replaced with 11"... I'll keep my eye out locally for a D-30 and disks, but thats beyond project scope-creep at this moment.
     
  6. Mar 18, 2016
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    One of the key points with manual brakes regardless of disc or drum is to use organic pads/shoes. They are softer and grip better. Semi-metallic and ceramic are meant to be used strictly with a power booster.
     
  7. Mar 18, 2016
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Found it :)

    it goes with this explanation

    [​IMG]


    again, the Girling is a bit simpler & easier to understand-

    [​IMG]

    Still they all work pretty much the same way.

    H.
     
  8. Mar 18, 2016
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    So does wet include driving in rain?
     
  9. Mar 18, 2016
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Only time I've ever had trouble (on any vehicle with drum brakes) was for a few seconds after driving quickly through large puddles, never due to just rain.

    H.
     
  10. Mar 18, 2016
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    What Howard said.
     
  11. Mar 18, 2016
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    X2!
     
  12. Mar 19, 2016
    uncamonkey

    uncamonkey Member

    Greeley CO
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    I've never had a problem in rain, slush or snow with drying the brakes, never had to. Actual water crossings where the shoes are submirsed takes a bit more time to dry. They still worked, but inot n a way that you felt too well about.
     
  13. Mar 19, 2016
    Wenaha

    Wenaha Member

    West Coast
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    I have 11" Bendix drum brakes from an early 70's Jeep on my CJ2A. Stops without any drama. I recently added a dual MC set-up from R&P and look forward to reliability that can't be achieved with the old style single MC.
     
  14. Mar 19, 2016
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    I was taught to apply the brakes before/while driving thru water.
     
  15. Mar 19, 2016
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I was told by people to try that technique, just never did.
     
  16. Mar 19, 2016
    duffer

    duffer Rodent Power

    Bozeman, MT
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    Should mention one more caveat with disc's: I have frozen the pads firmly to the discs to the point one pad sheared from the backing. After that incident, I ride those brakes also before parking it when wet and under freezing conditions. That happened after bucking some deep snow.
     
  17. Mar 19, 2016
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    I've seen the same happen to a set of drum brakes on a buddy's Blazer. Stream crossing right at hunting camp. He crossed, parked, set the parking brake. Next morning it wouldn't move.....Until it did. And took the brake linings right off.
     
  18. Mar 19, 2016
    uncamonkey

    uncamonkey Member

    Greeley CO
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    I froze the shoes to my drums once in my MB and have had the pads freeze up on my Volvo.
     
  19. Mar 19, 2016
    SFaulken

    SFaulken Active Member

    Bellevue, WA
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    Back home, it was pretty common practice to always carry a propane torch and rubber mallet behind the seat of the pickup, just for this reason. I got in the habit of just not *using* the parking brake if it was going to be cold out, but heat and some vibration was the best way to break them loose.
     
  20. Mar 20, 2016
    eti engineer

    eti engineer Member

    Great Central...
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    I just moved to California and it took care of all that freezing stuff... OK, just joking...

    Sorry but I couldn't resist. I just got home from 16 hours of electrical systems testing and troubleshooting at INTEL in "Silly-con Valley" and I needed some levity. Nite to all...
     
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