Caliper-Assemble - Pontiac tempest 1968 Service Manual

DISC B R A K E S
5D-3
F i g . 5D-2 Removing Piston Boot
CALIPER-ASSEMBLE
1. Assemble seal in groove In piston which is
closest to flat end of piston. The lip on the seal must
face toward large end of piston. Be sure seal lips
are in piston groove and do not extend over step in
end of groove. (Fig. 5D-3)
2. Place spring in bottom of piston bore.
3. Lubricate piston seal and cylinder bore with
clean brake fluid.
4. Install piston in bore, using piston installer
J 22591. (Fig. 5D-4)
5. Depress pistons and check that they slide
smoothly into bore until end of piston is flush with
end of bore. If not, re check piston and location of
piston spring and seal.
6„ Assemble boot in groove of piston closest to
concave end of piston. Fold in boot must face toward
end of piston with seal on it.
I
F i g . 5D-4 Installing Piston in Bore
7. Position installer J 22262 over piston and seat
steel boot retaining ring evenly in counterbore. The
boot retaining ring must be flush or below machined
face of caliper. Any distortion or uneven seating
could allow contaminating and corrosive elements to
enter bore. (Fig. 5D-5)
8. Repeat steps 1 through 7 for other three
pistons.
9. Position O-rings in small cavities around fluid
transfer holes in both ends of outboard caliper
— ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
F i g . 5D-3 Exploded V i e w of Piston
F i g . 5D-5 Installing Piston Boot