Hi Guys, so I finished my disk brake conversion using Scarebird brackets and suggested hardware, installed a Dual MC (68 Cougar) and a disk drum combo valve. I updated the drums with new hose, wheel cylinder and shoes. I thoroughly bench bled the MC and vacuum and pump bled the entire system several times. I adjuster the rear drum so they have friction when rotating the tires and redid this after driving a few times.
I have 2 problems:
1. The brakes take allot of force to slow and stop the car - I believe the original KH under dash booster may not be working, so I'm either going to rebuild or replace the KH booster, or switch to a Dual 8" booster under the hood (http://www.ebay.com/itm/8-DUAL-UNIVE...tVB6A8&vxp=mtr). The repair of the KH is allot simpler, will the 8" dual booster give much better performance?
2. the front disk brake engage before the the rear drum brakes, to the point if I don't slightly pump the brake before making a stop I think only the front are doing the stopping. I jacked up one side of the car and had a helper slowly push the pedal down to confirm this, when the front start to lock up to the point where i cannot turn them by hand, the rear are still loose and not engaged. any suggestions I have nothing else to try? can the combination valve (http://www.macsautoparts.com/ford_th...1955-1979.html) be adjusted?
Thanks Boris
I have 2 problems:
1. The brakes take allot of force to slow and stop the car - I believe the original KH under dash booster may not be working, so I'm either going to rebuild or replace the KH booster, or switch to a Dual 8" booster under the hood (http://www.ebay.com/itm/8-DUAL-UNIVE...tVB6A8&vxp=mtr). The repair of the KH is allot simpler, will the 8" dual booster give much better performance?
2. the front disk brake engage before the the rear drum brakes, to the point if I don't slightly pump the brake before making a stop I think only the front are doing the stopping. I jacked up one side of the car and had a helper slowly push the pedal down to confirm this, when the front start to lock up to the point where i cannot turn them by hand, the rear are still loose and not engaged. any suggestions I have nothing else to try? can the combination valve (http://www.macsautoparts.com/ford_th...1955-1979.html) be adjusted?
Thanks Boris
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