Testing and Inspection for Eldorado V8-350 57L DSL (1984) Brake Master Cylinder
Brake Master Cylinder: Testing and Inspection
Testing Dual Master Cylinders
Be sure that the master cylinder compensates in both ports. This can be done by applying the brake pedal lightly (engine running with power brakes)
and observing for brake fluid squirting up in the reservoirs. This may only occur in the front chamber. To determine if the rear compensating port is
open, pump up the brakes rapidly and hold the pedal down. Have an observer watch the fluid in the rear reservoir while the pedal is raised. A disturbance
in the fluid indicates that the compensating port is open.