Exhaust Manifold Installation - Right Side

Exhaust Manifold Installation - Right Side





Caution:
Refer to Fastener Caution Fastener Caution.

Note:

* Tighten the exhaust manifold bolts as specified in the service procedure. Improperly installed and/or leaking exhaust manifold gaskets may affect vehicle emissions and/or on-board diagnostic (OBD) II system performance.

* The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.

* Do not apply sealant to the first 3 threads of the bolt.

1. Install the heat shield (603) and bolts (604) and tighten to 9 Nm (80 lb in).

2. Install the exhaust pipe studs (605) and tighten to 20 Nm (15 lb ft).





3. Apply a 5 mm (0.2 in) wide band of threadlock GM P/N 12345493 (Canadian P/N 10953488), or equivalent, to the threads of the exhaust manifold bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers Adhesives, Fluids, Lubricants, and Sealers.

4. Install the exhaust manifold, NEW gasket and bolts.

5. Using a flat punch, bend over the exposed edge of the exhaust manifold gasket at the rear of the left cylinder head.

* Tighten the exhaust manifold bolts a first pass to 15 Nm (11 lb ft). Tighten the exhaust manifold bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.

* Tighten the exhaust manifold bolts a final pass to 20 Nm (15 lb ft). Tighten the exhaust manifold bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.