Camaro V8-305 5.0L VIN F FI (1985)
NOTICE: If excessive resistance is encountered, use the following procedure to prevent breakage:
(A)
First put a 10 mm socket over bleeder screw and tap lightly on it.
(B)
If step (A) does not help, use a propane torch to heat the caliper around bleeder screw after assuring that any excess Liquid
Wrench has been removed from surface. Apply heat to caliper for approximately 30 seconds to 1 minute (maximum). DO NOT
USE AN ACETYLENE TORCH. Overheating the aluminum caliper could cause the bleeder screw to strip its threads.
11.
Inspect caliper bore and seal groove. If necessary, use crocus cloth to polish out any light corrosion.
12.
Clean all parts with GM brake parts cleaner P/N 12345754 (or equivalent).
13.
Dry parts with unlubricated compressed air.
14.
Blow out all passages in housing and bleeder screw.
15.
Clean internal passage in bleeder screw, reinstall bleeder screw and torque to 6-9 N-m. (80-140 lb.in.).
16.
Install new piston seal. Lubricate seal and bore with brake fluid.
NOTICE: Make sure that seal is not twisted.
17.
Install lubricated new boot onto new piston with inside lip of boot in piston groove and boot fold toward end of piston which contacts inboard
brake pad.
18.
Install thrust washer on actuator screw with copper side of washer toward the piston assembly and gray surface toward the caliper housing.
19.
Install lubricated shaft seal on actuator screw.
20.
Install actuator screw into piston.
21.
Install new balance spring into piston recess.
22.
Guide lubricated piston assembly into lubricated bore of caliper.
NOTICE: Excessive force is not required to install the piston assembly into the caliper bore.
DO NOT ALLOW PISTON TO COCK IN BORE AS SEAL WILL BE DAMAGED.
23.
When resistance (seal engagement) is met, rotate piston assembly back and forth to insure it is square to seal.
