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Technical Emergency Brake..??..

Discussion in 'The Hokey Ass Message Board' started by lilmann, Dec 30, 2018.

  1. RICH B
    Joined: Feb 7, 2007
    Posts: 5,944

    RICH B
    ALLIANCE MEMBER

    Line lock is pretty much the same thing as an electric Mico Brake. Supposed to be used for "operational parking" only. Back before air brakes were common; had more than a few trucks roll away when the drivers left them parked in neutral with the Mico set. No telling, some would bleed off in few minutes and some would stay on indefinitely.
     
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  2. haileyp1014
    Joined: Feb 15, 2006
    Posts: 938

    haileyp1014
    Member
    from so cal

    Saw a guy use a Tesla e brake. It's just an electric caliper
     
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  3. AndersF
    Joined: Feb 16, 2013
    Posts: 952

    AndersF
    Member

    First about 35 mph with regular brakes and then e-brake on dry road.
    Then the same on ice but about 15 mph.
    Keep you regular brakes well maintained.
     
    Last edited: Jan 11, 2019
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  4. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,513

    gimpyshotrods
    ALLIANCE MEMBER

    There are mechanical versions of that.
     
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  5. OLDSMAN
    Joined: Jul 20, 2006
    Posts: 2,422

    OLDSMAN
    BANNED

    I used a park brake lever from a 70ish dodge pickup on my 39 deluxe Ford coupe and use the original lever on my Olds convertible. I wouldn't be without one. It's a great safety item, and is part of the NSRA inspection. For many years I was the Nebraska NSRA safety inspector
     
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  6. As has been pointed out, 'parking' brake is the name used these days as 'emergency' implies that it would adequately stop the vehicle in an emergency. The lawyers strike again....

    Semantics aside, I would consider a 'emergency brake' as any system that uses the regular brakes, just with a different activation system. If you think about it, this would offer the same braking as you would have in the event of a hydraulic loss at either end of the car in a split system, or nearly equal to fully operable brakes if the loss was at the rear.

    But with the advent of disc brakes, most vehicles (and early Torqueflite Mopars without a park position) now use a smaller 'auxiliary' brake system of some sort, with reduced swept area that simply won't offer the same braking force. These are parking brakes IMO. Although again, in a rear loss in a split system it may help supplement the fronts. There were some rear disc calipers that used the 'main' brake pads for parking, but these proved to be troublesome and disappeared.

    FWIW, back in the early '70s a buddy had someone give him a running '60 Corvair. The problem was it had no brakes; both rear wheel cylinders were blown and beyond rebuilding. And for some reason, GM used counter-sunk ****erfly-head bolts to retain the cylinders. All the bolt heads were trashed from prior attempts to remove them, and nobody wanted to dismantle the rear suspension to get the backing plates off so they could be drilled out (that may not have been the case, but we were young and dumb...). The shops wanted more than the car was worth to fix it. So he drove with the emergency brake. It wasn't as scary as you'd think; yes, stopping distance was longer, but not that much. He lived in an area with hills, and had no difficulty stopping going down them, you just needed to pay attention. He drove it like that for six months, right up until it got stolen. And yep, it didn't turn out well for the thieves; they made it out of his driveway OK, but failed to negotiate the 'T' intersection at the bottom of the hill...
     
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  7. lilmann
    Joined: Apr 13, 2017
    Posts: 145

    lilmann

     
  8. 'Hydro-Boost brakes have that little canister that is near the master cylinder that “holds” pressure in the event that you break a hose. I pulled one off a 2005 ***mins pickup and was told it’ll give 4 full power stops, (3) 75% power stops, (2) 50% stops and then you have manual brakes....not sure if all hydro-boost are created equal but in my 8500lb O/T truck it stops like a sports car and has that canister thingy!'

    You're misunderstanding what the canister is for. It's there to provide power ***ist in the event the hydraulic boost is lost (motor stops, broken belt to the pump, etc). Break a line going to a wheel, and you'll still have no brakes on that half of a split system.
     
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  9. 57 Fargo
    Joined: Jan 22, 2012
    Posts: 6,180

    57 Fargo
    Member

    The ac***ulator will give you 2-3 ***isted stops in the event of a loss of pressure. Then manually applied. Hydro boost works great just a few more hoses is all.


    Sent from my iPhone using H.A.M.B.
     
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  10. 26 T Ford RPU
    Joined: Jun 9, 2012
    Posts: 12,581

    26 T Ford RPU
    ALLIANCE MEMBER

    What's wrong with one lever and two cables? JW
     
  11. lilmann
    Joined: Apr 13, 2017
    Posts: 145

    lilmann

    Yes sir, I should have written if a power steering line breaks not a brake line! Thank you for clarifying


    Sent from my iPhone using The H.A.M.B. mobile app
     
  12. dirty old man
    Joined: Feb 2, 2008
    Posts: 8,910

    dirty old man
    Member Emeritus

    Gotta confess my roadster isn't set up with E/P brakes. It is manual (4spd toploader Ford), and I use 1st or rev. for parking.
    Biggest thing is a manual trans means 3 pedals, and with my size 14 shoes, there isn't a helluva lot of room left in the floor, and being 6'3" requires some knee room too. Just glad it's a 30/31 "A" and not a 28/29! Seems like about 3-4 years ago I mentioned the E-Stopp in a thread and was considering it as a solution and the thread got deleted as non traditional. Glad this one has survived, LOL I do have a dual MC, so I'm at least partially protected against brake failure.
    But I do want to install a E/P system and it looks like my only practical solution is non traditional. But to me safety is more important than being traditional , especially on stuff that isn't readily visible.
     

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