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Old 03-25-2019, 05:50 PM   #6
JHFORD51
Senior Member
 
Join Date: Feb 2011
Posts: 253
Default Re: Shoebox master cylinder help

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Great advice so far. All hard and soft lines, wheel cylinders, hardware, shoes, and drums were replaced when I converted to front discs.

Short (rear) shoe is set to 0.010 clearance from drum IAW Ford shop manual.

No noise when turning drums by hand, no whine when driving like bad wheel bearings.

I let the car sit for 24 hours and then:

Jacked it up and checked tire rotation-- they are turning freely.

Pumped brakes pedal 30 times. Tires still rotate freely.

Pumped another 30 times. Tires rotate freely.

1/16 to 1/8 push rod free play. Pedal IS NOT riding the m.c. piston.

Checked fluid level. Removed a slight amount of fluid from the resivour feeding the rear brakes, now fluid is about 1/4 from top.

Car has dual exhaust. Hard lines exiting m.c. are about 1.25 inch from tail pipe. I wrapped some thermo shield around the lines in that area in case thermal expansion of the fluid was an issue.

I will test drive tomorrow. Only other thing I know to try is turning down the bias on the prop valve so the rear brakes do less "work".
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