mr. fix it
Old Man with a Hat
ok so last night I had a near miss and discovered that my rear brakes like to lock up in a panic mode.
I have converted from a single manual pot M/C to a P/B dual pot drum brakes all around.
- P/B pedal assembly bought from Murray Park 66 Polara and installed.
I used a 1967 spec dual Drum brake set up with P/B.
All 1967 spec C body parts.
Previous threads have shown that a proportioning valve is not required but simply plumb the front brakes into the distribution block, block off the 3rd open port then connect the rear brakes to the line running to the back of the car.
Lastly the M/C
The rear pot feeds the front brakes
The front pot feed the rear brakes.
System feels decent brake pedal with no pulling or grabbing.
The Front brakes are all B/N parts le3s the backing plates and spindles
Rear brakes are brand used drums slightly oversized
All new Wheel cylinders, all new steel & flex lines less two front lines which are like brand new and push fluid with no restrictions
Anyone following my work has witnessed the new parts being thrown at this car.
I have checked the adjustment of the brakes a number of times so I am confident that adjustments are not the cause.
Finally I was speaking with another Mopar local retired shop owner and he told me that regardless of being a drum or disc setup, if you run a dual M/C you need a proportioning valve.
What has everyone here done that has done the same thing as I have?
I have converted from a single manual pot M/C to a P/B dual pot drum brakes all around.
- P/B pedal assembly bought from Murray Park 66 Polara and installed.
I used a 1967 spec dual Drum brake set up with P/B.
All 1967 spec C body parts.
Previous threads have shown that a proportioning valve is not required but simply plumb the front brakes into the distribution block, block off the 3rd open port then connect the rear brakes to the line running to the back of the car.
Lastly the M/C
The rear pot feeds the front brakes
The front pot feed the rear brakes.
System feels decent brake pedal with no pulling or grabbing.
The Front brakes are all B/N parts le3s the backing plates and spindles
Rear brakes are brand used drums slightly oversized
All new Wheel cylinders, all new steel & flex lines less two front lines which are like brand new and push fluid with no restrictions
Anyone following my work has witnessed the new parts being thrown at this car.
I have checked the adjustment of the brakes a number of times so I am confident that adjustments are not the cause.
Finally I was speaking with another Mopar local retired shop owner and he told me that regardless of being a drum or disc setup, if you run a dual M/C you need a proportioning valve.
What has everyone here done that has done the same thing as I have?
