Regal V6-231 3.8L VIN L SFI (1990)
Brake Caliper: Service and Repair
Delco-Moraine Single Piston Rear Disc Brake
Caliper Removal/Installation
Do not mix power steering fluid with brake fluid. If brake seals contact steering fluid or steering seals contact brake fluid, damage will result.
1.
Remove two thirds of the total brake fluid capacity from the master cylinder front reservoir, to prevent overflow of brake fluid.
2.
Support vehicle on a hoist and remove tire and wheel assembly.
3.
Install one nut with flat side facing rotor to prevent rotor from falling out when caliper is removed.
4.
Loosen parking brake cable tension at equalizer, then remove cable from parking brake lever and remove return spring, locknut, lever, lever seal
and anti-friction washer. Lever must be held in place while removing nut.
5.
Clean surface in area of lever seal, then using a 7 inch (or larger) C-clamp, with the solid end on lever stop and screw end on back of outboard
lining, turn clamp until piston is bottomed in caliper. Do not position C-clamp on actuator screw.
6.
Before removing clamp, lubricate housing surface under lever seal with silicone lubricant.
7.
Install anti-friction washer, a new lever seal and lever. Install lever on hex with arm pointing downward.
8.
Rotate lever toward front of vehicle and while holding in this position, install nut and torque to 25 ft. lbs. and rotate lever back to stop.
9.
Disconnect brake line from caliper and plug openings to prevent loss of fluid and contamination. Do not crimp brake hose, as this may damage
internal structure of hose.
10.
Remove the brass bolt from block, if applicable. If brake line nut is seized, brass bolt and block can be removed with brake line attached by
removing bolt. Plug openings to prevent loss of fluid and entry of dirt.
11.
Remove caliper mounting bolts and remove caliper.
12.
Reverse procedure to install and torque caliper mounting bolts to 30 ft. lbs. When installing brass bolt and block, use two new copper gaskets.
Torque bolt or connector to 30 ft. lbs.
Caliper Disassembly
Fig. 2 Rear Disc Brake Caliper Exploded View (Typical)
