buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Master Cylinder Assembly|Page 4079 > < Brakes - Selected Models with Revised Components|Page 4076
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Brake Master Cylinder: Service and Repair
Master Cylinder Assembly

ASSEMBLY

NOTE:  Clean all parts not included in repair kit with denatured alcohol then dry with compressed air. 

1.

Lubricate new O-rings, then install into resovoir grooves. Ensure O-rings are properly seated.

Installing Reservoir

Removing/Installing Reservoir Spring Pins

2.

Install reservoir onto master cylinder body by pressing straight down, then drive in spring pins to retain resovoir.

3.

Install new lubricated seals and spring retainer on secondary piston.

4.

Install spring and secondary piston assembly into cylinder.

5.

Install lubricated primary piston. Depress primary piston into cylinder, then install retainer.

6.

Install fluid level switch and proportioner valve assembly, if equipped.

Fluid Level Sensor Switch

Master Cylinder Assembly|Page 4079 > < Brakes - Selected Models with Revised Components|Page 4076