Overhaul; Rear Brake Shoes; Master Cylinder; Power Brake Unit - Mazda 1983 RX7 Service Manual

REAR BRAKE SHOES

Removal (All Models)
1) With brake drum removed, remove brake shoe return
springs, retaining springs and guide pins. Remove brake shoes.
2) Remove parking brake strut and disconnect parking brake
cable from operating lever of secondary shoe.
Installation
1) Lubricate adjusting screw threads and contact surfaces of
shoes and backing plate with brake grease. Install parking brake
operating lever to secondary shoe and secure with clip. Engage
operating lever with parking brake cable.
2) Position operating strut between slots of shoes. Mount
assembly to backing plate so slots in shoes are toward adjusting
screws. Install return springs and retainer springs.

MASTER CYLINDER

Removal
1) Disconnect fluid level sensor coupler, if equipped.
Disconnect and plug hydraulic lines at master cylinder to prevent
entry of dirt and loss of fluid.
2) Remove nuts attaching master cylinder to firewall or
power brake unit and remove master cylinder from vehicle. On RX7,
remove proportioning valve by-pass bolt.
Installation
To install, reverse removal procedure and bleed hydraulic
system.

POWER BRAKE UNIT

Removal
1) Remove master cylinder from power brake unit before
removing power brake unit. Disconnect vacuum line at power brake unit.
2) From inside vehicle, remove cotter pin and clevis pin
attaching push rod to brake pedal, and separate.
3) Remove nuts retaining power unit to firewall. Remove
power brake unit and master cylinder as an assembly. Separate master
cylinder from power brake unit.
Installation
To install, reverse removal procedure and bleed hydraulic
system.

OVERHAUL

FRONT DISC BRAKE CALIPER
Disassembly
1) Thoroughly clean exterior of caliper and remove retainer
BRAKE SYSTEM
Article Text (p. 5)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Sunday, August 26, 2001 04:54PM