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-   -   Brake Question (https://moparforums.com/forums/f12/brake-question-21371/)

71EV2 05-15-2018 02:06 PM

Brake Question
 
!971 Cuda stock Disc/drum, rebuilt original calipers. When take the car out cold, brakes are fine. After a bit of cruising, back home now, front brakes lock up(feels like E-brake is on, but isn't). Rears are okay(free wheeling).
What's going on? Where do I start. The master has been replaced also. Driving season is upon us, would like to sort this out. Help! Thank you!
Sorry for my first post being a problem.

TVLynn 05-15-2018 07:40 PM

I would suggest replacing the front and rear rubber hoses if not already done, one may be collapsing

71EV2 05-15-2018 08:28 PM

The lines were replaced during restoration,about 10 year ago, but that’s a good suggestion.

Drag Pak 05-16-2018 01:34 PM

Wrong master cylinder? Drum - Drum with residual valves in both outlets?

Archer 05-16-2018 02:50 PM

71 -

Do the easy stuff first. Make sure the wheel cylinders or the calibers aren't locking up with heat.

When the breaks start acting up, get home, pop the wheel and have someone pump the pedal.
See what the cylinder does.

Archer

ZEN357 05-17-2018 08:51 AM

Why not upgrade to a modern set of brakes? It would be safer.

Iowan 05-18-2018 01:55 PM

Did you mix up the ft and rear on the master.

71EV2 10-09-2018 07:50 PM

Was back at it today. Jacked car up cold, wheel spun freely. Started car let run few minutes, wheel spins freely. Pumped brakes couple of times, fronts lock up tight. Turn car off and loosen masters four bolts, and brakes release. Is it a faulty master, or rod adjustment? Or something else? Master part number is Napa P2066.
Master was replaced 2 years ago, never had problem before? WTH thanks!

71EV2 10-10-2018 05:32 PM

I turned in the booster rod a turn and 1/2, problem solved.If someone could tell me how you get .30 clearance, I’d give it a try.

TVLynn 10-13-2018 06:12 PM

My guess would be to measure it at the booster with the bolts loose


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