SEALING MATERIALS FOR OIL LEAKS

MODELS AFFECTED: 1987 SKYRAWKS WITH THE LL8 2.OL OHV L-4 ENGINE (VIN CODE 1)

Some reports have been received indicating that rocker cover, cam cover, and front timing cover leakage repairs are being made with RTV. RTV should not be used on these applications.

These sealing interfaces have been designed only for the specified gaskets as follows:

Rocker Cover Gasket Part Number 14090066 Cam Cover Gasket Part Number 14090974 Front Timing Cover Gasket Part Number 14090026

Use of any other material will not meet the intended sealing life.

This service bulletin is for information only.

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.