1993 - 1998 Corvette: Service Bulletin: Paint Peeling From Muffler

Model Year: 1993-98 PASSENGER CARS WITH PAINTED MUFFLERS
Subject: PAINT PEELING FROM MUFFLER (NEW REPAIR PAINT AVAILABLE)
Source: Chevrolet Dealer Service Bulletin
Bulletin Number: 33-17-01A

IMPORTANT:

GM OF CANADA DEALERS AND NAES DEALERS ARE NOT AUTHORIZED TO UTILIZE THIS SERVICE BULLETIN.

CONDITION:

SOME OWNERS MAY EXPERIENCE PAINT PEELING FROM THE MUFFLER.

CORRECTION:

CLEAN AND REPAINT THE AFFECTED AREA USING THE FOLLOWING PROCEDURE AND PRODUCT.

IMPORTANT: DO NOT REPLACE COMPONENTS TO REPAIR THIS CONDITION.

THE EXHAUST SYSTEM MUST BE COLD TO BEGIN THIS PROCEDURE.

MATERIAL REQUIRED: *WABASH PRODUCTS #KB-318-HHHS, AVAILABLE IN PINTS OR QUARTS AS READY TO SPRAY MATERIAL (NO MIXING REQUIRED). CALL WABASH PRODUCTS, 1-800-326-7269 OR 812-232-6097 FOR PRICING AND SHIPPING INFORMATION.

PROCEDURE: ON A COLD EXHAUST SYSTEM:

1. RAISE VEHICLE ON HOIST.

2. WHILE SUPPORTING EXHAUST WITH A TRANSMISSION JACK, REMOVE THE REAR EXHAUST SYSTEM HANGERS AND LOWER THE EXHAUST.

3. CLEAN THE AFFECTED AREA WITH A WAX AND GREASE REMOVER, LACQUER THINNER OR OTHER SUITABLE SOLVENT.

4. WIRE BRUSH THE AFFECTED AREA TO REMOVE FLAKING PAINT AND BLOW OFF WITH AIR.

5. SAND THE AFFECTED AREA WITH #80 TO 150 GRIT SANDPAPER TO REMOVE RUST, DIRT OR OTHER CONTAMINANTS.

6. CLEAN THE AFFECTED AREA WITH A WAX AND GREASE REMOVER, LACQUER THINNER OR OTHER SUITABLE SOLVENT.

7. TAPE OFF THE REAR LOWER BODY PANELS AND EXHAUST PIPES FORWARD OF MUFFLERS TO PROTECT FROM OVERSPRAY.

8. APPLY PAINT TO AFFECTED AREA IN SEVERAL (6 TO 8) THIN COATS (TO PREVENT SAGS AND RUNS) OBTAINING APPROXIMATELY 1 MIL PAINT COVERAGE.

9. RAISE EXHAUST SYSTEM WITH JACK, REINSTALL EXHAUST HANGERS, LOWER VEHICLE AND REMOVE FROM HOIST.

- ALLOW 30 MINUTES DRYING TIME.

10. IN A WELL VENTILATED AREA, START ENGINE AND ALLOW TO IDLE FOR UP TO 30 MINUTES UNTIL PAINT IS CURED AND DRY.

IMPORTANT: SOME "SMOKING" WILL OCCUR WHILE CURING THE PAINT WITH THE ENGINE RUNNING.

THE PAINT CAN BE HEATED AND CURED WHILE DRIVING, BUT BE CAREFUL NOT TO GET THE EXHAUST SYSTEM WET DURING THE FIRST 30 MINUTES.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.

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