Cavalier L4-2.2L VIN 4 (1998)
4. Remove the master cylinder reservoir cover (1).
5. Remove the master cylinder reservoir diaphragm (2).
6. Empty the fluid from the reservoir.
Empty the fluid only if the master cylinder is to be completely removed and overhauled.
7. Inspect the master cylinder cover and the diaphragm for the following conditions. Replace the parts as necessary:
^
Cuts
^
Cracks
^
Nicks
^
Deformation
8. Remove the fluid level switch (1).
9. Remove the proportioner valve assemblies.
10. Remove the piston retainer (12) while depressing the primary piston. Do not damage the primary piston (11), the master cylinder bore or the piston
retainer groove (18).
11. Remove the primary piston (11). Apply low pressure non-lubricated compressed air into the upper outlet port at the blind end of the bore with all
other outlet ports plugged.
12. Remove the secondary piston (9). Apply low pressure non-lubricated compressed air into the upper outlet port at the blind end of the bore with all
other outlet ports plugged.
13. Remove the secondary piston spring (6) and the spring retainer (7). Apply low pressure non-lubricated compressed air into the upper outlet port at
the blind end of the bore with all other outlet ports plugged.
14. Remove the secondary seal (10).
15. Remove the primary seal (8).
