ROCKER ARM COVER REMOVAL SHOP MANUAL REVISION

VEHICLES AFFECTED: 1985 Corvette

The Rocker Arm Cover Removal and Installation procedure called out in Section 6A1, Page 6A1-6 of the 1985 Corvette Shop Manual (ST-364-85) have been revised as shown below. Please update your shop manual accordingly.

ROCKER ARM COVER

Removal (Left Side)

1. Disconnect negative battery cable. 2. Remove left injector harness cover. 3. Disconnect PCV valve at rocker arm cover. 4. Disconnect spark plug wires at rocker arm cover. 5. Loosen air injection reaction (A.I.R.) pump pulley bolts. 6. Disconnect serpentine belt at A.I.R. pump. 7. Remove A.I.R. pump pulley. 8. Disconnect A.I.R. hose at A.I.R. pump. 9. Remove A.I.R. pump and lower mounting bracket. 10. Remove rocker arm cover bolts. 11. Remove rocker arm cover.

Removal (Right Side)

1. Disconnect negative battery cable. 2. Remove right injector harness cover. 3. Disconnect A.I.R. hose at pipe. 4. Disconnect heater hose at throttle body. 5. Disconnect wires at idle air control (IAC) throttle position sensor (TPS) and injector. 6. Disconnect spark plug wires at rocker arm cover. 7. Remove rocker arm cover bolts. 8. Remove rocker arm cover.

Installation (Both)

1. Thoroughly clean rocker arm cover sealing surfaces and apply RTV. 2. Reverse removal procedures.

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.