Regal V6-173 2.8L (1988)
Brake Caliper: Technical Service Bulletins
Brakes - Rear Caliper Service Procedure (Revised)
Group: Ref.: Brakes
Bulletin No.: 335005
Date: April, 1994
SUBJECT:
REAR CALIPER SERVICE PROCEDURE
MODELS:
1988-93 BUICK REGAL
1990-94 CHEVROLET LUMINA
1988-93 OLDSMOBILE CUTLASS SUPREME
1988-93 PONTIAC GRAND PRIX
THIS BULLETIN IS BEING REVISED FOR THE FOLLOWING REASONS:
A.
SUPPLY AN ADDITIONAL TOOL NUMBER J41013 (SANDING DISC KIT) AND A VIDEO. THE TOOL AND VIDEO WILL BE
SHIPPED TOGETHER TO ALL DEALERS.
B.
ADD ILLUSTRATIONS.
C.
REVISE LABOR TIME TO INCLUDE USE OF TORQUE STICKS.
D.
CHANGE THE PROCEDURE SECTION.
PREVIOUS DIVISIONAL PUBLICATION NUMBERS WERE:
DIVISION
BULLETIN NUMBER
BUICK
93-5-7
CANADA
93-5-11
CHEVROLET
93-138-5
OLDSMOBILE
93-T-48
PONTIAC
93-5-10
PLEASE DISCARD PREVIOUS DIVISIONAL PUBLICATIONS.
SOME CASES HAVE BEEN REPORTED WHERE:
1.
It is difficult to R&R the park brake lever and return spring to allow retraction of the piston when servicing the rear calipers.
2.
It is difficult to insert sleeves through new boots when reassembling the calipers.
To eliminate these difficulties, several tools were introduced.
A.
SLEEVE REMOVAL AND BORE REFINISH KIT
B.
PISTON RETRACTION TOOL
C.
SEAL INSTALLATION TOOL
D.
SANDING PAD AND DISC KIT (WITH THIS BULLETIN)
SERVICE PROCEDURE:
1.
Raise vehicle and remove rear wheels and tires.
2.
Remove hydraulic line bracket bolt. It is not necessary to disconnect hydraulic line from the caliper. (It is also not necessary to remove any of the
park brake cable or lever assembly with the use of this new tool.)
3.
Remove caliper mounting bolts, and remove caliper and support.
4.
Remove brake pads. CAREFULLY REMOVE THE INNER PADS TO PREVENT DAMAGE TO THE PAD RETAINERS.
