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Old 01-26-2011, 07:42 PM
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1978 Ford Bronco help

I know it's not really what you would call a "hotrod", but it falls into the old (and cool, if you ask me) category.

I'v got a '78 Ford Bronco that I have been trying to figure out the brakes on for the past two months and I'm officially out of ideas.

Long story short, I got stuck one night in the mud and it sat there for a couple hours (not sure if it's related, but figured I'd add this) then couple days later I was driving and the peddle hit the floor. I changed the master cylinder (twice, assumed first one might have been a bad one), new vacuum brake booster and it has vacuum to it, and bled the brakes 10+ times, and still no peddle. (you can pump them and get a LITTLE bit) It has new(ish) lines on the front, along with calipers/pads on the front (about 8months old) and has all new shoes,springs,and wheel cylinders out back (3-4months old)

And incase ya'll are wondering, we did bench bleed the master cylinder before we put it on.

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Old 01-27-2011, 05:43 PM
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better take a look in the back, somethin came apart. Thats my take on it. Or the adjusters are on the wrong side and instead of adjusting , they are un adjusting. I see it all the time, along with improper installation of primary and secondary shoes.
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Old 01-28-2011, 12:00 AM
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Alright, I'll jack it up and double check everything at the wheels when I get a chance. (hopefully tommorrow)
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Old 01-28-2011, 12:52 AM
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yep. that would be my guess.. when I put the new rear end in my '95 K1500. I rebuilt the brakes on it ( new springs, adjusters, wheel cylinders, just reused the brake linings as they were almost new ).. drove it a couple days when I lost the brake pedal.. checked and found no leaks except what was dripping from 1 of the drums... it helps if you put the brakes togther right. did manage to re- seat the wheel cylinder back togther and it hasn't given me trouble.. 1 of the adjuster linkages had slipped when I put it togther, so it was loose even tho it did not look it


I'v seen the adjusters on the wrong side too. they are stamped R and L for a reason, of course.. I'v done it too
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Old 01-30-2011, 09:07 AM
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Well, ended up being simpler than I could have asked for. The lower spring that holds the adjuster thing that only lets it turn one way (name of it slips my mind) came loose, on the passenger side rear drum.

Thank's for the advice ya'll.
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