Mitsubishi 3000GT Service Manual page 927

SERVICE BRAKES
DISASSEMBLY SERVICE POINTS
Holding the cross spring with hand, remove the pad pin.
Using a screwdriver, remove the pad assembly.
Install a wood block as shown and send compressed air
through the port, to which brake hose is attached, to remove
the pistons.
At this time, make sure that the four pistons come out evenly.
Caution
1. Be careful not to get your fingers to be pinched.
2. Be careful not to let the brake fluid splash.
(1) Remove the piston seal.
Caution
Do not damage the cylinder inner surface.
(2) Clean the piston surfaces and cylinder inner surfaces
with trichloroethylene, alcohol, or the specified brake fluid.
Specified brake fluid:
Conforming to DOT3 or DOT4
INSPECTION
Check cylinder for wear, damage or rust.
l
l Check piston surface for wear, damage or rust.
Check caliper body or sleeve for wear.
l
l Check pad for damage or adhesion of grease, check
backing metal for damage.
TSB Revision