Integra L4-1590cc 1.6L DOHC FI (1987)
Brake Bleeding: Service and Repair
Bleeding the hydraulic brake system is necessary if air has entered the system. A few causes for this condition are a low fluid level, a hydraulic fluid
leak, a hydraulic line is opened or replacement of a hydraulic system component. Symptoms can be noted by an improper or loss of brake operation,
and/or a low or spongy brake pedal.
Fill master cylinder reservoir with DOT 3 or 4 brake fluid. After bleeding each wheel check master cylinder level and fill as required.
Raise and support vehicle.
Position drain pan under wheel being bleed. Refer to Bleeding Sequence. for wheel bleeding sequence.
Have an assistance depress the brake pedal with a slow even pressure and hold it. Do not depress brake pedal fully to the end of the master
cylinder stroke. This may damage the master cylinder.
Using suitable wrench, open bleed valve one full turn. Watch for air bubbles in the fluid, and listen for air escaping from the system.
With brake pedal still depressed, close bleeder valve.
Have an assistant pump the brake pedal several times. Do not depress brake pedal fully to the end of the master cylinder piston stroke as
master cylinder damage may result.
Repeat steps 4 through 7, following the wheel bleeding sequence specified in Bleeding Sequence. Ensure all air is removed from the hydraulic
brake system. While bleeding the system, recheck brake fluid supply in the master cylinder often so as not to allow the master cylinder
often so as not to allow the master cylinder to run dry.
Upon completion of hydraulic system bleeding proceed as follows:
a. Ensure master cylinder reservoir is full. Add brake fluid as needed, and securely reinstall the master cylinder cap.
b. Lower the vehicle. Ensure brake pedal is firm and braking operation is proper.