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Old 08-31-2011, 09:28 PM
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brakes on my 1930 oldsmobile... calipers holding pressure?

HOTRODDERS HELP!!!!
i got a 30 olds 5 window coupe
running a 65 389. approx 400 hp
im running a late 60's GM brake set up.
master cylinder is mounted under the floor
10 psi residual valve mounted on rear for drum brakes.
2 psi residual valve for front w/ disc brakes.
...my problem: front brakes seem to be slightly engauged when off brakes.
what i think is the issue: the fluid being stopped by said residual valve keeping pressure on calipers....
whats the solution?

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Old 08-31-2011, 09:40 PM
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master cyl ?

your master cly-pedal pushrod could be too long not letting fluid release when you take your foot off the pedal. . My son had a nash metro that he put in a 1600 pinto engine, the exhaust was close to the M cyl and it would heat up and make the brakes drag.
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Old 08-31-2011, 10:40 PM
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pushrod has a couple of thousanths of play, and none of the brake lines run near the exhaust, not to mention that i havnt fired this engine yet.... BRAKES FIRST!
thanks for the suggestions!
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