Installation; Drum; Diagnosis And Testing - Brake Drum; Standard Procedure - Brake Drum Machining - Chrysler PT Cruiser Service & Repair Manual

PT
DISC BRAKE CALIPER GUIDE PINS (Continued)
(1) Raise the vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE)
(2) Remove the front tire and wheel assembly.
(3) Remove the two brake caliper guide pin bolts
(Fig. 64).
Fig. 64 Brake Caliper Mounting
1 - BRAKE HOSE
2 - ADAPTER MOUNTING BOLTS
3 - BANJO BOLT
4 - CALIPER GUIDE PIN BOLTS
(4) Remove the disc brake caliper from the disc
brake caliper adapter and hang it out of the way
using wire or a bungee cord. Use care not to overex-
tend the brake hose when doing this.
(5) Remove the guide pins and boots from the
adapter as shown (Fig. 65).
Fig. 65 Guide Pins And Boots
1 - PINS
2 - BOOTS

INSTALLATION

(1) Lubricate the guide pins and inside the boots
with the packet supplied with the service kit, Syth-
esco GLK-1 lubricant or equivalent.
(2) Install the guide pins and boots in the adapter
as shown (Fig. 65). The boots have grooves built into
their inner lips to fit onto the pins and adapter.
CAUTION: Use care when installing the caliper onto
the disc brake adapter to avoid damaging the boots
on the caliper guide pins.
(3) Install the disc brake caliper over the brake
shoes on the brake caliper adapter. Make sure the
springs on the shoes do not get caught in the hole
formed into the center of the caliper housing.
(4) Align the caliper guide pin bolt holes with the
guide pins. Install the caliper guide pin bolts and
tighten them to a torque of 35 N·m (26 ft. lbs.) (Fig.
64).
(5) Install the tire and wheel assembly. Tighten
the wheel mounting nuts to a torque of 135 N·m (100
ft. lbs.).
(6) Lower the vehicle.
(7) Pump the brake pedal several times before
moving the vehicle to set the shoes to the brake
rotor.

DRUM

DIAGNOSIS AND TESTING - BRAKE DRUM

With the drum off the vehicle, measure the drum
for diameter variation (oval shape). The diameter
variation of the drum braking surface must not
exceed either 0.0635 mm (0.0025 inch) in 30° or
0.0889 mm (0.0035 inch) in 360°.
Measure brake drum runout. Brake drum runout
should be checked with the drum mounted on a
brake lathe. Brake drum runout should not exceed
0.1524 mm (0.006 inch).
If either of these measurements are not within
specification, reface or replace the drum. (Refer to 5 -
BRAKES/HYDRAULIC/MECHANICAL/DRUM
STANDARD PROCEDURE).
Always replace the drum if machining will cause
the diameter to exceed drum maximum diameter. All
brake drums are marked with the maximum allow-
able brake drum diameter (Fig. 66).
STANDARD PROCEDURE - BRAKE DRUM
MACHINING
If a brake drum is deeply scored or warped, it can
be machined on a brake lathe equipped to machine
brake drums. Follow the manufacturers instructions
on the machining procedure.
BRAKES - BASE 5 - 35
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