I need a little help with my brakes. I installed a dual master cylinder from an early 70's Dodge Dart on my 1963 Avanti with factory disc/drums. I removed the front residual valve from the m/c & bench bled the unit. I also adjusted the power booster to match the new m/c. I rebuilt & cleaned out all wheel cylinders & lines with denatured alcohol & proceeded to bleed the system with DOT5 silicone brake fluid.
The rears bled just fine, but I couldn't get anything to flow from the front discs using the two man bleeding method. I have a vacuum pump so I bled the fronts using vacuum. I had a nice firm pedal & thought all was well. Next morning they were soft, so I bled the fronts again manually & hardly anything would come out of the bleed screws. I bled the fronts manually for 20 to 30 cycles with very little fluid coming out of the bleed screws & no air visable. It had a nice pedal, so I drove it that way a couple days & each time I would drive it the pedal would have a different feel. Sometimes soft & sometimes hard. Yesterday it felt really firm & I thought they were magically coming around some how. Well after about 10 miles down the highway I found out that they came around too well. The fronts were now dragging to the point of actually smoking when I came to a stop. I shut everything down & let it cool, hoping I didn't warp the rotors. When I tried it again the pedal went to the floor.
What do I do now?
Thane
The rears bled just fine, but I couldn't get anything to flow from the front discs using the two man bleeding method. I have a vacuum pump so I bled the fronts using vacuum. I had a nice firm pedal & thought all was well. Next morning they were soft, so I bled the fronts again manually & hardly anything would come out of the bleed screws. I bled the fronts manually for 20 to 30 cycles with very little fluid coming out of the bleed screws & no air visable. It had a nice pedal, so I drove it that way a couple days & each time I would drive it the pedal would have a different feel. Sometimes soft & sometimes hard. Yesterday it felt really firm & I thought they were magically coming around some how. Well after about 10 miles down the highway I found out that they came around too well. The fronts were now dragging to the point of actually smoking when I came to a stop. I shut everything down & let it cool, hoping I didn't warp the rotors. When I tried it again the pedal went to the floor.
What do I do now?
Thane
Comment