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Thread: Mk1 Escort Front Brake Problems

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    Spanner Monkey Pikey15's Avatar

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    Mk1 Escort Front Brake Problems

    Hi,
    I was wondering if anyone could me with a problem I have on my front brakes.

    I've got a 1974 1100 Mk1 Escort with a tandem master cylinder and Mk2 front struts/brakes on it. Ever since I've owned the car I've had issues with the brakes, the original master cylinder leaked like a sieve so a friend gave me one off of his old car which worked fine until I drove the car for more than 5-10 minutes when the front brakes have started the bind. I decided to rebuild the calipers which were in a shocking state inside and had to remove loads of black sludge from behind the pistons. I put them back together and they move quite freely now, however after driving the car again for about 10 minutes, the front brakes have locked up again. It probably takes a good 45 minutes to an hour for them to free off enough for me to be able to push the car by hand. I've replaced the brake fluid and have bled the brakes completely of any air.

    The only thing I can think of is if the master cylinder I was given has some sort of problem with it or could it be something else?

    Any help would be great, as the girlfriend is giving me a hard time about selling the car

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    World Champion Decade Plus User exboyracer's Avatar

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    Re: Mk1 Escort Front Brake Problems

    Chances are the pushrod on the brake pedal is too long for the master cylinder. If it is adjustable, try shortening it; if not, you can try (only as a temporary measure) loosening the nuts connecting the m/cyl to the bulkhead to see if this frees off the brakes.

    It could also be a badly adjusted brake lamp switch pushing the brake pedal down.

    All this is assuming you don't have a servo fitted; if you do, then the above is still applicable, but relates to the servo pushrod.
    http://escort.accelerator.org
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    Spanner Monkey Pikey15's Avatar

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    Re: Mk1 Escort Front Brake Problems

    Quote Originally Posted by exboyracer View Post
    Chances are the pushrod on the brake pedal is too long for the master cylinder. If it is adjustable, try shortening it; if not, you can try (only as a temporary measure) loosening the nuts connecting the m/cyl to the bulkhead to see if this frees off the brakes.

    It could also be a badly adjusted brake lamp switch pushing the brake pedal down.

    All this is assuming you don't have a servo fitted; if you do, then the above is still applicable, but relates to the servo pushrod.
    G'day exboyracer, that's great mate, thank you very much for your help, I'll give it a try tomorrow

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    Re: Mk1 Escort Front Brake Problems

    Thats exactly what i thought too, the brakes stuck on on my mk2 in the first couple of weeks after it was done, on the motorway too They freed off in about 5 mins though. Turned out the rod on the cylinder in my bias box had unwound and so was pushing on, also the pedal would stop at the brake switch bracket which was too high so i spaced the cylinders off the box and they work perfect now

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    Re: Mk1 Escort Front Brake Problems

    Hi,
    Just the front brakes binding? Other things to consider: the seals on the pistons by design bring the piston back a little from the disc when the pressure is released. Also check flexi brake pipes because they can and do fail internally causing a blockage which holds the pressure in the caliper.
    Good luck .

    BTW: best lamb shanks to be had in THE BOG irish pub


    Roop

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    Spanner Monkey Pikey15's Avatar

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    Re: Mk1 Escort Front Brake Problems

    Hey, just to let you know, I found the problem after your advice, I checked the brake light switch and sure enough the bracket which holds the switch had been bent down at some point and was holding the brakes on slightly. It's working great now

    Thank you again for everyone's advice and help.

    Quote Originally Posted by Roop View Post
    BTW: best lamb shanks to be had in THE BOG irish pub

    Roop
    Hi Roop, I agree they are the best lamb shanks at The Bog

    Cheers again.

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    World Champion Decade Plus User exboyracer's Avatar

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    Re: Mk1 Escort Front Brake Problems

    Glad to hear you got it sorted
    http://escort.accelerator.org
    1968 MK1 Escort 1300GT
    1969 'Big Wing' MK1 Escort
    1972 MK3 Cortina 1600XL
    1984 Sierra XR4i
    And other junk I don't like to talk about!

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