Assembly - Disc Brake Caliper (Piston And Seal) - Chrysler PT Cruiser Service & Repair Manual

5 - 32 BRAKES - BASE
DISC BRAKE CALIPER - REAR (Continued)
(6) Holding the convoluted boot on the opposite
end of the bushing, push the steel sleeve through the
bushing until the bushing boot is fully seated into
the seal groove on that end of sleeve (Fig. 57). Install
the other end bushing boot into the groove on that
end of the bushing sleeve.
(7) Verify both ends of the bushing are seated in
the sleeve groves (Fig. 58). When the sleeve is seated
properly into the bushing, the sleeve/bushing can be
held between your fingers and easily slid back and
forth without the bushing unseating from the sleeve
groove.
Fig. 58 Correctly Installed Guide Pin Sleeve And
1 - CALIPER
2 - BUSHING
3 - SLEEVE
ASSEMBLY - DISC BRAKE CALIPER (PISTON
AND SEAL)
NOTE: Never use an old piston seal.
(1) Dip the new piston seal in clean brake fluid
and install it in the groove of the caliper bore. The
seal should be started at one area of the groove and
gently worked around and into the groove (Fig. 59)
using only your clean fingers to seat it.
(2) Coat the new piston boot with clean brake fluid
leaving a generous amount inside the boot.
(3) Position the dust boot over the piston after
coating it with brake fluid.
Bushing
Fig. 59 Installing New Piston Seal
1 - CALIPER
2 - PISTON SEAL
3 - SEAL GROOVE
CAUTION: Force applied to the piston to seat it in
the bore must be applied uniformly to avoid cock-
ing and binding of the piston.
(4) Install piston into caliper bore pushing it past
the piston seal until it bottoms in the caliper bore
(Fig. 60).
Fig. 60 Installing Piston Into Caliper Bore
1 - BOOT
2 - PISTON
3 - CALIPER
(5) Position the dust boot into the counterbore of
the caliper assembly piston bore.
PT