The facts:
1951 Commander.
Turner front disc brake conversion. Turner dual master cylinder bracket. Corvette style disc/drum master cylinder with remote reservoir.
No booster. No Hill Holder.
Installed the required 2# and 10# inline residual pressure valves.
I did NOT install a proportioning valve going to the rear.
Rear brake assemblies from a '63 Avanti, 11" drums. Brand new drums, wheel cylinders, shoes, etc. Adjusted per shop manual.
Master cylinder pedal freeplay adjusted to 1/4 inch of pedal travel before it engages the master cylinder piston.
All metal lines are new. All flex lines are new.
I've ran over a quart of Dot 3 fluid through the system and all bleeder screws shoot a clear stream of fluid with no air bubbles.
PROBLEM:
Brake pedal is "low".
No front braking power, period. It's as though the disc setup is nonexistent.
I can hear the rear brakes energizing when I press the brake pedal, and when driving the car around the yard, the rear brakes (slowly) stop the car.
Any ideas? Is this a result of not installing a rear proportioning valve? Air still somewhere in the system? Something else entirely?
1951 Commander.
Turner front disc brake conversion. Turner dual master cylinder bracket. Corvette style disc/drum master cylinder with remote reservoir.
No booster. No Hill Holder.
Installed the required 2# and 10# inline residual pressure valves.
I did NOT install a proportioning valve going to the rear.
Rear brake assemblies from a '63 Avanti, 11" drums. Brand new drums, wheel cylinders, shoes, etc. Adjusted per shop manual.
Master cylinder pedal freeplay adjusted to 1/4 inch of pedal travel before it engages the master cylinder piston.
All metal lines are new. All flex lines are new.
I've ran over a quart of Dot 3 fluid through the system and all bleeder screws shoot a clear stream of fluid with no air bubbles.
PROBLEM:
Brake pedal is "low".
No front braking power, period. It's as though the disc setup is nonexistent.
I can hear the rear brakes energizing when I press the brake pedal, and when driving the car around the yard, the rear brakes (slowly) stop the car.
Any ideas? Is this a result of not installing a rear proportioning valve? Air still somewhere in the system? Something else entirely?
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