Impulse L4-1994cc 2.0L (1985)
Brake Caliper: Service and Repair
Rear Caliper
Removal and Installation
1.
Raise and support vehicle and remove rear wheels.
2.
Disconnect flexible brake hose.
3.
Remove caliper lock pin.
4.
Remove caliper assembly from disc.
5.
Reverse procedure to install, torquing caliper lock pin to 13-16 ft. lbs. and the flexible brake hose to 9-14 ft. lbs.
Disassembly and Reassembly
1.
Remove caliper as previously described.
2.
Remove guide pin boot, then the sleeve and sleeve boot.
3.
Remove piston boot ring using small screwdriver.
4.
Remove piston dust boot.
5.
Insert suitable piece of wood into caliper and force piston out by applying compressed air through brake hose opening in caliper.
6.
Remove caliper to piston seal.
7.
Remove breather with cap.
8.
Reverse procedure to assemble, installing new guide pin boot, sleeve boot, piston boot ring, piston boot, and caliper piston seal supplied with
overhaul kit, and note the following:
a. Using special rubber grease supplied with rear kit, lubricate ring seal and cylinder bore.
b. When inserting piston into cylinder bore, use finger pressure only.
c. Using special grease, lubricate piston boot before installing into cylinder bore and apply grease to foot fitting face of piston.
d. Fill sleeve boot and guide pin boot with grease before installing on caliper.
e. Install guide pin boot after applying grease into lock pin hole in caliper.
f.
Torque breather to 4.5-6.5 ft. lbs. and install cap.
