Dodge Nitro. Manual — part 359
Fig. 23: Removing Caliper Piston - Typical
Courtesy of CHRYSLER LLC
4. Remove caliper piston (2) with short bursts of low pressure compressed air. Direct air through fluid inlet
port and ease piston out of bore.
CAUTION: Do not blow the piston out of the bore with sustained air pressure.
This could result in a cracked piston. Use only enough air pressure
to ease the piston out.
WARNING:
Never attempt to catch the piston as it leaves the bore. This may
2007 Dodge Nitro R/T
2007 BRAKES Base - Service Information - Nitro
Fig. 24: Removing Caliper Piston Dust Boot - Typical
Courtesy of CHRYSLER LLC
5. Remove caliper piston dust boot with suitable pry tool (1).
result in personal injury.
2007 Dodge Nitro R/T
2007 BRAKES Base - Service Information - Nitro
Fig. 25: Removing Caliper Piston Seal - Typical
Courtesy of CHRYSLER LLC
6. Remove caliper piston seal with wood or plastic tool (1). Do not use metal tools as they will scratch
piston bore.
2007 Dodge Nitro R/T
2007 BRAKES Base - Service Information - Nitro
Fig. 26: Removing Caliper Mounting Bolt Bushings And Boots
Courtesy of CHRYSLER LLC
7. Remove caliper mounting bolt bushings (1) and boots (2).
CLEANING
DISC BRAKE CALIPER
Clean the caliper components with clean brake fluid or brake clean only. Wipe the caliper and piston dry with
lint free towels or use low pressure compressed air.
INSPECTION
DISC BRAKE CALIPER
The piston is made from a phenolic resin (plastic material) and should be smooth and clean.
The piston must be replaced if cracked or scored. Do not attempt to restore a scored piston surface by sanding
or polishing.
The bore can be lightly polished with a brake hone to remove very minor surface imperfections. See Fig. 27.
CAUTION: Do not use gasoline, kerosene, thinner, or similar solvents. These
products may leave a residue that could damage the piston and seal.
CAUTION: If the caliper piston is replaced, install the same type of piston in the
caliper. Never interchange phenolic resin and steel caliper pistons. The
pistons, seals, seal grooves, caliper bore and piston tolerances are
different.
2007 Dodge Nitro R/T
2007 BRAKES Base - Service Information - Nitro
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