Firebird V8-305 5.0L (1982)
Technical Service Bulletin # 88519A
Date: 920301
Brakes - Rear Calipers Not Adjusting
Bulletin Number:
88-5-19A
Reference Number:
135016R
Publish Date:
3/92
Subject:
REAR DISC BRAKE CALIPERS (INSTALL REVISED CONE-CLUTCH ADJUSTOR)
Models
Affected:
1982-88 FIREBIRD, 1984-87 FIERO AND 1983-88 6000 STE
This bulletin is being revised to change the part number on the Seal Kit for the Fiero and 6000 STE. This bulletin cancels and replaces bulletin 88-5-19
issued 11/91. Please discard bulletin 88-5-19.
Condition:
Some cases have been reported where the self-adjustors in the rear calipers do not function properly on 1982-88 Firebird, 1984-87 Fiero and 1983-88
6000 STE models equipped with automatic transmissions.
Correction:
To correct this, a revised cone-clutch adjustor has been released.
Service Procedure I
Service Procedure:
A.
Raise vehicle and remove rear tire/wheel assembly (or assemblies), per Service Manual.
B.
Spray the equalizer and bleeder screw(s) with liquid wrench (or equivalent).
C.
Remove rear caliper(s), per shop manual.
D.
Remove pads.
E.
Inspect brake pads for taper wear or excessive wear. Taper wear can be determined by taking measurements at the four points shown in the
diagram.
Calculate pad taper by subtracting the thinnest point measured from the thickest point measured.
The brake pads should be replaced if taper is greater than .080 inches.
F.
Overhaul caliper(s):
Tools Required:
J-22269-01
Piston Installer
J-38898
New Boot Seal Installer
Procedure II
1.
Remove bleeder screw.
