ZINC DIE CAST GOLD PLATED ORNAMENTATION CORROSION
SUBJECT: ZINC DIE CAST GOLD ORNAMENTATION CORROSION (REPLACE ZINC DIE CAST PARTS)
VEHICLES AFFECTED: 1990 C, D, E, K
Some 1990 DeVilles, Fleetwoods, Eldorados, Sevilles, and Broughams with option B94 (gold ornamentation) may experience a condition of a white cloudy film developing on the zinc die cast gold-plated ornaments. This condition is due to the deterioration of the clear coat resulting in the corrosion of the gold plating.
This condition may be corrected by replacing the zinc die cast parts with new generation parts. The new generation parts must be ordered and received in kit form. Kits are assembled with reference to carline. The E/K and C kits include all gold ornamentation with exception of the sail panel crest and wreath. The D kits include all gold ornamentation with exception of the rear quarter script and the deck lid engine plate. These parts not included in the kit must be ordered along with the service kit and must replace the piece currently on the vehicle. The kits can be ordered utilizing the following part numbers:
C-Car Kit C-Car Sail Panel Emblems P/N 3634825 Includes Additional Required-Parts --------------------- --------------------------- Hood Ornament 25536828 Crest (Tape) 20688264 Grill Script 20688272 Wreath (Tape) 20688262 Swing Lock Cover 20747497 Opera Lamp 20747502 Deck Lid Wreath 20747496 Wreath 20747503 Engine Plate 25541015 Plate (60 Special) 20747495
D-Car Kit D-Car Engine Plates P/N 3634826 Includes Additional Required Parts -------------------- ------------------------- Hood Ornament 12397073 5.0 PFI Plate 20723083 Sail Panel Crest 20688263 5.7 PFI Plate 20723316 Sail Panel Crest 20688261 Grill Script 20688272 Swing Lock Cover 20688267 Deck Lid Wreath 20723082
D-Car Rear Quarter Scripts Additional Required Parts -------------------------
Colour Option Base D'Elegance ---------------------- -------- --------- Mary Kay Pink - 08U 20728021 20725770 Silver Metallic - 12U 20723277 N/A Medium Grey Metallic - 15U 20723278 20723321 Pearl Grey - 17U 20723279 20723322 Light Sapphire Blue- 26U 20723281 20723324 Dark Sapphire Blue- 29U 20723283 20723325 Sapphire Black Firemist - 32U 20723283 20723326 White - 401! 20723276 20723319 Dark Sable Metallic - 65U 20728020 20723328 Dark Maple Red - 79U 20728018 20723327 Autumn Maple Firemist - 89U 20723287 20723329 Light Antelope metallic - 94U 20728019 20723330
E/K Kit E/K Sail Panel Emblems P/N 3634827 Includes Additional Required Parts --------------------- ------------------------- Hood Ornament 12397076 Crest (Tape) 20688264 Grill Script 20688272 Wreath (Tape) 20688262 Swing Lock Cover 20688267 Crest (Studs) 20688263 Deck Lid Wreath 20688266 Wreath (Studs) 20688261 Engine Plate 20723332 Biarritz 12397335
To install the gold ornamentation service kits and additional required parts use the following procedures:
C, D, and E/K CARS ------------------ 1. Remove hood ornament (24mm or 15/16" nut).
2. Remove radiator valance panel (6 Phillips-head screws).
3. Remove grille script (2 10mm nuts).
4. Remove sail panel wreath and crest (stick-on, studs, or illuminated).
5. Remove rear compartment engine plate.
6. Remove swing lock cover wreath.
7. Remove swing lock cover.
8. Clean surface area of vehicle where adhesives are to be used with solvent
9. Install all new gold ornamentation.
Eldorado Biarritz
1. Remove hood ornament.
2. Remove radiator valance panel (6 Phillips-head screws).
3. Remove grille script (2 10mm nuts).
4. Remove rear compartment engine plate.
5. Remove swing lock cover wreath.
6. Remove swing lock cover
7. Remove vinyl top assembly.
o Tape protective cover to adjacent painted surfaces. o Remove lace (2 screws and clips slide outboard). o Remove clips from weld studs and lace at roof. o Open deck lid and remove screws. o Separate cap assembly at hood and loop material. o Slide cap assembly forward to disengage at slots and from welds. o Remove cap assembly.
8. Remove Biarritz script.
9. Install new Biarritz script.
10. Replace cap assembly.
o Apply thin piece of cardboard over loop fasteners on roof sail panel and tape in place. This is done to separate the hook and loop fasteners during cap installation.
o Position cap to roof tucking rear valance under front edge of open deck lid. (Deck lid must be half-way open.)
o Position front edge of cap assembly over weld studs.
o Slide cap rearward to engage key slot at far right side.
o Align studs on cap assembly to previously installed push nuts and insert until snug.
o Close deck lid and push rear of cap down to seat against quarter panel catwalk.
o Align valance with deck lid and mark position of valance with tape in glass.
o Open deck lid. Align valance to tape and install screws.
o Remove cardboard and press in on assembly at hook and loop assembly.
o Secure slots at sail panels by pressing in.
o Secure lace over weld studs with clips.
o Install mouldings.
o Remove tape and protective cover.
11. Clean surface of vehicle where adhesives are to be used with solvent.
12. Install remaining new gold ornamentation.
Use the most applicable Labour Operation and Time from the Canadian Labour Time Guide.
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.
