Service manual

181 CID (3.0L) 4 CYLINDER GM ENGINE
SERVICE MANUAL NUMBER 26
90-861329--1 MARCH 1999 Page 3A-15
Rocker Arm Cover
Removal
It may be necessary to remove exhaust manifold before removing rocker arm cover. Refer
to SECTION 7B for removal.
1. Disconnect crankcase ventilation hose.
2. Remove any items that interfere with the removal of rocker arm covers.
IMPORTANT: DO NOT pry rocker arm cover loose. Gaskets, which may adhere to cyl-
inder head and rocker arm cover, may be loosened by bumping end of rocker cover
from the rear with palm of hand or a rubber mallet.
3. Remove rocker arm cover.
Installation
1. Clean sealing surfaces on cylinder head and rocker arm cover with degreaser.
2. Place new rocker arm cover gasket in position in rocker arm cover.
3. Install rocker arm cover. Torque bolts to 40 lb-in. (4.5 Nm).
4. Install exhaust manifolds.
5. Install any items which were removed to allow removal of rocker arm covers.
6. Connect crankcase ventilation hose to rocker arm cover.
Index