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What is it with my brakes??!! Help guys.

Posted By Talkwrench 12 Years Ago
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ian57tbird
Posted 12 Years Ago
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When you crack the bleeders does the fluid flow freely and the pedal go down with almost no pressure applied?
Talkwrench
Posted 12 Years Ago
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Snowcone.. It was thought that could be however everything is making full contact now. Checked leading shoe is the smaller. No Mark have not blown out any lines.
Could the diameter of the hard lines have any bearing? The new ones I had made coming from my Master Cyl seem small? Doubtful ..?

Brakes have always been bad on this car.. MUST be something to do with the rear.. When ever Ive bled or adjusted them all seemed normal, Usually have my daughter apply the brakes as I do the adjustment so I know both wheels are braking at the same time..



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Pete 55Tbird
Posted 12 Years Ago
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Next time you have a rear drum off check that the leading shoe ( the one toward front of car) is the smaller lined shoe. If they were just done the shoes could be on wrong. Pete
oldcarmark
Posted 12 Years Ago
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snowcone (11/25/2013)
If the linings were new and the drums were not machined at the same time, it would have been necessary to chamfer the edges of the shoes so that they fit into the wornedges in the drum.
If they weren't chamfered then the shoes will only be coming in contact with the outer edges of the drum and not getting full contact across the whole shoe. This will give you a reasonable pedal but very poor brakes until they have worn into the old drum edges.

Might not be your situation but it is a possibility with old drums.


Doesn't explain the discolored brake fluid.

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oldcarmark
Posted 12 Years Ago
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snowcone (11/25/2013)
If the linings were new and the drums were not machined at the same time, it would have been necessary to chamfer the edges of the shoes so that they fit into the wornedges in the drum.
If they weren't chamfered then the shoes will only be coming in contact with the outer edges of the drum and not getting full contact across the whole shoe. This will give you a reasonable pedal but very poor brakes until they have worn into the old drum edges.

Might not be your situation but it is a possibility with old drums.


Doesn't explain the discolored brake fluid.

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snowcone
Posted 12 Years Ago
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If the linings were new and the drums were not machined at the same time, it would have been necessary to chamfer the edges of the shoes so that they fit into the wornedges in the drum.
If they weren't chamfered then the shoes will only be coming in contact with the outer edges of the drum and not getting full contact across the whole shoe. This will give you a reasonable pedal but very poor brakes until they have worn into the old drum edges.

Might not be your situation but it is a possibility with old drums.

Gary - 1958 Star Customline and 1940 Ford Deluxe Hotrod

oldcarmark
Posted 12 Years Ago
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Have you tried taking the lines apart and used air pressure to blow them out?See if anything unusual comes out.

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speedpro56
Posted 12 Years Ago
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That's the route I'd take as well.

-Gary Burnette-


Talkwrench
Posted 12 Years Ago
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It must be in the hard lines. Partial blockage? The rubber line to the diff is new. The rear cylinders look great , as new. The brakes where done before I got the car, its really done no miles.. Just age I guess?

Maybe its time to buy that double flaring tool Ive always wanted ; o )

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ian57tbird
Posted 12 Years Ago
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Lift the rubber caps on the cylinders. If they are rusty I would be sure they are leaking as well.


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