Merkur Scorpio V6-179 2.9L (1989)
Brake Caliper: Service and Repair
Front
Disassembly and Assembly
Fig. 12 Exploded View Of Front Brake Caliper
DISASSEMBLY
1.
Remove caliper assembly and brake pads as previously described.
2.
Open bleeder screw and drain fluid from caliper, then close bleeder screw.
3.
Position block of wood between piston and caliper, then apply air pressure through fluid inlet port to remove piston. Apply only enough air
pressure to ease piston out of caliper.
4.
Remove dust boot from piston and discard, Fig. 12.
5.
Remove piston seal from caliper and discard.
6.
Remove caliper anchor pin bushing, then the anchor pin seal.
INSPECTION
1.
Check piston for scratches, scoring or damage. Replace, if necessary.
2.
Check caliper bore for scratches, scoring or corrosion. Light scratches or slight corrosion can be polished out using crocus cloth.
3.
Check that bleeder screw and bleeder screw bore hole in caliper are fully open.
4.
Check caliper bushings for corrosion and dust boot retaining ring for damage or tension loss. Replace parts as necessary.
ASSEMBLY
1.
Install caliper anchor pin seal, spraying seal with silicone lubricant to aid installation.
2.
Install caliper anchor pin bushing, overlapping edges of bushing slightly to fit bushing into seal. After installation, press bushing against seal to
remove overlapping. When properly installed, the ends of the bushing must abut against each other.
3.
Lubricate new piston seal with brake fluid and install in seal groove, ensuring that seal does not become twisted but is firmly seated in groove.
4.
Position dust boot at bottom of piston and, holding dust boot on piston, pull on seal lip until seal unfolds, allowing lip seal to extend beyond
bottom of piston.
5.
While holding dust boot on piston, fit seal lip in caliper bore and push piston into caliper. As piston enters bore, the dust boot will refold to its
original shape.
Removal and Installation
REMOVAL
1.
Raise and support vehicle.
2.
Remove wheel and tire assembly.
3.
Disconnect electrical connector from brake pad wear sensor.
4.
Remove spring retaining clip from caliper housing.
5.
Remove piston housing bolts and the housing from anchor bracket.
6.
Disconnect brake hose from caliper. Plug line to prevent leakage and contamination.
7.
Remove caliper anchor bracket attaching bolts and the bracket, if necessary.
8.
Reverse procedure to install, noting the following:
a. Torque caliper attaching bolts, brake hose and anchor bracket attaching bolts to specification.
b. Following completion of installation, perform front brake bleeding procedures.
INSTALLATION
