Come 1984 thru 1985 Skyhawks equipped with a 1.8L turbocharged engine, may experience exhaust manifold leakage, or damage to nearby components resulting from the exhaust leak. To reduce this coondition, exhaust manifold service kit, part number 14076440, should be ordered which contains the following parts:
One (1) P/N 14076399 Manifold Assembly - Exhaust One (1) P/N 14076400 Gasket - Exhaust Manifold Eight (8) P/N 14090008 Stud - Exhaust Manifold Eight (8) P/N 11502811 Nut - Exhaust Manifold One (1) P/N 14076401 Gasket - Turbo to Exhaust Manifold
Refer to the Buick Chassis Service Manual for removal and replacement procedures for the exhaust manifold (Section 6A2) and the turbocharger (page 6J-12). When installing the gaskets ensure that the expansion joints of the exhaust manifold gasket face outward and that the embossed side of the turbocharger gasket faces the turbocharger. Refer to the illustration.
TORQUE SPECIFICATIONS
10-15 N.m (7-11 ft. lbs.) for studs 20-30 N.m (15-22 ft. lbs.) for nuts
Labor Operation: T3140 Labor Time: 1.4 hrs.
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.