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Bleeding and adjusting 4 wheel drum brakes

  • So I finally finished installing new brakes on my 1964 Barracuda. It just has the standard 9" drums all around. When I first got the car, it essentially had no brakes. I replaced the drums, pads , and wheel cylinders. I also flushed the brake lines with clean fluid. The old front cylinders were leaking so I figured that was the main brake problem. I bled the brakes the old fashion way. Pump, Pump, Push. I seemed to get all the air out. I got the car on the road and the pedal seems way too soft. The car stopped but the pedal was close to floor. I applied the brakes in reverse to let the self-adjusters do their thing but that did not make much difference. Hard to believe but I have never driven a car without power brakes. Consequently, I am not sure how the manual brakes are supposed to "feel." Any hints on brake adjustments?

    Victor Carre
  • The pedal should be firm and fairly high up. I would check and adjust each wheel separately and make sure that the adjusters have not been switched around since they are right and left side oriented. Have you replaced the master cylinder also?

  • If you are self bleeding, you can use a hose that is immersed in brake fluid and fits tightly around the bleeder screw. Start at rt rear and loosen bleeder; SLOWLY pump pedal about five to fifteen times, using about half a cylinder of fluid thru ea wheel. Keep an eye on fluid. Start at rt rear then lft rear, rt front lft frt.

    Brion Traill

  • One other thing to check that can sometimes make a difference is the flex hoses. Sometimes they can clog(especially old ones) and this can cause some problems). I did both the front ones on my 66 and my brakes are great.

    Steve Charlton

  • We did a 63 300C and the brakes were all new, and the pedal still went to the floor after bleeding. We went back in and manually adjusted the star wheel on each drum and found them to be 3-4 turns out. After that, the brake pedal was rock hard and stopped us as well as drums could in a 4000 lb car. Should only have about 1" before you feel resistance. Make sure when you adjust the star wheels, you pump the brake to reseat the shoes. We had to do this twice on the old 300.

    Steve Wander