Power Brake Unit; Exploded View Of Typical Master Cylinder - Mazda 1983 RX7 Service Manual

Fig. 7:

Exploded View of Typical Master Cylinder

Some models may vary slightly.
Cleaning & Inspection
1) Clean all parts in alcohol or brake fluid. Check all
parts for scoring, roughness or wear. Check piston-to-cylinder
clearance.
2) If clearance exceeds .006" (.15 mm), replace parts as
necessary. Remove all foreign matter from internal passages and
recesses with compressed air.
3) Check cylinder cups for deformation and replace as
required.
Reassembly
1) Reverse disassembly procedure. Coat all parts with clean
brake fluid before reassembly. Use new gaskets at all hydraulic
unions.
2) When assembled, make sure piston cups do not cover
compensating ports. Make sure valve with hole in center, faces front
side outlet hole.

POWER BRAKE UNIT

NOTE: Power brake units vary slightly between model applications.
The following general overhaul procedures can be used if
attention is paid to specific order of components.
Disassembly
1) Remove master cylinder and check valve from power unit.
Place power unit in a vise with push rod up.
2) Scribe alignment marks on front and rear shells to assure
reassembly in original position. Remove clevis, lock nut, and dust
boot from rear shell.
CAUTION: Separate front and rear shells carefully. Spring tension may
cause rear shell to release quickly.
BRAKE SYSTEM
Article Text (p. 9)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Sunday, August 26, 2001 04:54PM