Exhaust Manifold Installation - Right Side
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
- 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.
- 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 Sealers, Adhesives, and Lubricants .
- Install the exhaust manifold gasket and exhaust manifold.
- Install the exhaust manifold bolts.
Tighten:
- Tighten the exhaust manifold bolts first pass to 15 N.m (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 final pass to 25 N.m (18 lb ft). Tighten the exhaust manifold bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.
- Using a flat punch, bend over the exposed edge of the exhaust manifold gasket at the front of the right cylinder head.
- Install the heat shield (603) and bolts (604).
Tighten: Tighten the heat shield bolts to 9 N.m (80 lb in).
IMPORTANT:
NOTE:
Refer to Fastener Notice
.