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Rod NZL


Buick06

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Hi all. Currently restoring a 1954 Buick Roadmaster, have brake problems. When activating the brake pedal, the brakes all lock on. Replaced master cylinder and had all wheel cylinders off and rekitted. Is this something electrical or mechanical? any help please.

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Two things I can think of. One is the little bleed back hole in the bottom of the mc resevoir being stopped up with trash. The other is the brake rod length. If it is adjusted too long it can cause a mc to not release pressure.When the mc piston is all the way back the rod should be slightly loose. Maybe 1/32" end play or so.

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Thanks for the comments, we will check these out...Rod NZL

Two things I can think of. One is the little bleed back hole in the bottom of the mc resevoir being stopped up with trash. The other is the brake rod length. If it is adjusted too long it can cause a mc to not release pressure.When the mc piston is all the way back the rod should be slightly loose. Maybe 1/32" end play or so.
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