Master Cylinder: Disassembly
- Remove master cylinder. Clean outside of master cylinder. Remove filler cap and diaphragm. Drain any remaining fluid from cylinder. On dual master cylinder used on Bronco and "E" & "F" Series vehicles, remove stop bolt from bottom of master cylinder.
- On all models, remove proportioning valve (if equipped). Depress piston, and remove snap ring from end of master cylinder bore. See Figure and Figure . Remove piston assembly from cylinder bore. Carefully apply air pressure in outlet port of cylinder to remove remaining piston assembly from bore.
NOTE:
Manufacturer does not recommend honing of cylinder bore.