Master cylinder plumbing

ptwist · Nov 13, 2018

The prior owner updated the brake booster and some other parts so I wanted to check to see if he had the ran correctly. Which set of brakes do each of the ports run to off of the master cylinder? Ie front port to front brakes or?

TOOLMAN · Nov 13, 2018

Depends on which master cylinder you have. If you have the normal Ford one, the large reservoir goes to the front, small to the back. If you're running the Corvette one, I think I plumbed the rear reservoir to the front and the front reservoir to the back.

ptwist · Nov 13, 2018

Truthfully I don’t know which one I have.

Blue Bastard · Nov 13, 2018

Back(large bowl) should be run to the front brakes. Smaller (front bowl) to the rear.
Corvette master has two equal size bowls. Your is NOT a corvette master.

Sent from my iPhone using Tapatalk

ptwist · Nov 13, 2018

Perfect, Thanks for the help. That was not how the previous owner had run them.

DirtDonk · Nov 13, 2018

Since yours is a '70 or older, do the lines run down to the stock "h-block" distribution block on the frame?
Or is there something else, such as an actual proportioning valve down there?

Paul

ptwist · Nov 13, 2018

No, One line was ran into the a block which was connected/transitioned into the flexible front brake line. The other simply had a connection which connected to a longer solid line that continued on to the rear drum brakes.

Apogee · Nov 14, 2018

Most disc/drum master cylinders had larger reservoirs for the disc brakes to account for pad wear, so that makes the plumbing easy.

The ubiquitous C3 Corvette disc/disc master cylinders have equal sized reservoirs and are front/front and rear/rear.

Master cylinder plumbing

ptwist

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Blue Bastard

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