Exhaust Manifold Installation

Exhaust Manifold Installation





Caution: Refer to Fastener Caution Fastener Caution.

1. Install NEW exhaust manifold studs (1) and tighten to 10 Nm (89 lb in).

2. Install secondary air injection assembly studs (3, 4) and tighten to 10 Nm (89 lb in), if necessary.

3. Install a NEW exhaust manifold gasket (2).




4. Install the secondary air injection check valve pipe adapter (2). Install the nut (3) and tighten to 25 Nm (18 lb ft).

5. Install the stud-bolt (1) and bolt (4). Tighten the stud-bolt and bolt to 10 Nm (89 lb in).




6. Install the second secondary air injection check valve pipe adapter (3). Install the bolts (4) and tighten to 10 Nm (89 lb in).

7. Install the secondary air injection check valve bracket (2) and the upper nut (1). Tighten the nut (1) to 25 Nm (18 lb ft).




8. Install the block heater (1). Tighten the bolt to 10 Nm (89 lb in).




9. Install the exhaust manifold (2) to the cylinder head.

10. Install NEW exhaust manifold to cylinder head retaining nuts (1) finger tight.




11. Tighten the NEW exhaust manifold to cylinder head retaining nuts two passes in sequence:

1. Tighten first pass in sequence to 14 Nm (124 lb in).

2. Tighten final pass in sequence to 14 Nm (124 lb in).




12. Install the exhaust manifold heat shield (1) and bolts (2). Tighten the bolts to 14 Nm (124 lb in).




13. Coat the threads of the oxygen sensor (1) with antiseize. Refer to Adhesives, Fluids, Lubricants, and Sealers Adhesives, Fluids, Lubricants, and Sealers.

14. Install the oxygen sensor and tighten to 42 Nm (31 lb ft).




15. Install a NEW gasket (2) on each of the secondary air injection check valve assemblies (1).

16. Install the secondary air injection check valve assemblies (1) and bolts (3). Tighten the bolts to 25 Nm (18 lb ft).