Brakes - Drum Adjustment Hole Plug Removal
88buick18Bulletin 88-5-8A
Date Sept., '88
Ref. No. 88-111A-5
Corp. Ref. No. 835006R
SUBJECT: BRAKE DRUM ADJUSTMENT HOLE PLUG REMOVAL
MODELS AFFECTED: 1987-88 CENTURYS 1987-88 SKYLARKS 1987 SOMERSETS
NOTICE: This bulletin is being revised to add the Somerset/Skylark carlines and an additional step to the service procedure. Please discard original bulletin 88-5-8. Date 4/88.
Some rear brake drum adjusting hole plugs cannot be removed using a punch because of insufficient die piercing. On drums where a punch will not work, the hole plug can be removed using the following procedure:
1. Remove the rear wheel and reinstall two lug nuts backwards to hold drum in place against rear wheel bearing.
2. Locate an accessible adjusting hole plug (select a plug not covered with a balance weight).
3. Position the adjuster hole plug on the left hand drum at 10:00 or on the right hand drum at 3:00 and set the park brake.
4. Prick punch four (4) spots within the hole plug outline.
5. Drill four (4) 6 mm (1/4 inch) diameter holes within the hole plug outline.
6. File the hole opening as necessary to insert a brake adjusting tool.
7. Install rubber adjusting hole cover (see part number on Page 5C2-2 of the 1988 Skylark/Skyhawk Service Manual).
WARRANTY INFORMATION
Labor Operation: T1318
Labor Time: 0.3 Hours
Trouble Code: 92