88. Exhaust Manifold Installation - Right without RPO NC8

Exhaust Manifold Installation Right

Notice: Refer to Fastener Notice in Service Precautions.





1. Install the exhaust manifold studs.
^ Tighten the exhaust manifold studs to 10 Nm (89 inch lbs.).





2. Install the exhaust manifold gasket.
3. Install the exhaust manifold.
4. Install the exhaust manifold bolts and nuts.
^ Tighten the exhaust manifold bolts and nuts to 30 Nm (22 ft. lbs.).
5. Install the right side spark plugs.
^ Tighten the spark plugs to 27 Nm (20 ft. lbs.) when installing the spark plugs in to a new cylinder head.
^ Tighten the spark plugs to 15 Nm (13 ft. lbs.) when re-installing the spark plugs after initial installation.





6. Install the lower right exhaust manifold heat shield.





7. Install the upper right exhaust manifold heat shield.





8. Install the fuel injector sight shield cover bracket.
9. Install the fuel injector sight shield cover bracket nuts.
^ Tighten the fuel injector sight shield bracket nuts to 30 Nm (22 ft. lbs.).





10. Install the right engine lift hook.
11. Install the right engine lift hook nut and bolt.
^ Tighten the right engine lift hook nut and bolt to 30 Nm (22 ft. lbs.).





12. Coat the threads of the heated oxygen sensor with anti-seize compound GM P/N 5613695, or equivalent.
13. Install the heated oxygen sensor.
^ Tighten the heated oxygen sensor to 42 Nm (31 ft. lbs.).
14. Install the heated oxygen sensor lead.

Important: Inspect the EGR outlet pipe for leaks during installation. If leaks are present, replace the EGR adapter assembly.





15. Install the EGR valve adapter to cylinder head.
16. Install the EGR valve adapter to cylinder head bolts.
^ Tighten the EGR valve adapter to cylinder head bolts to 50 Nm (37 ft. lbs.).
17. Install the EGR inlet pipe to the exhaust manifold.
18. Install the EGR inlet pipe bolt.
^ Tighten the EGR inlet pipe bolt to 29 Nm (21 ft. lbs.).
19. Install the EGR outlet pipe to EGR valve adapter.
20. Install the EGR outlet pipe to EGR valve adapter nut.
^ Tighten the EGR outlet pipe to EGR valve adapter nut to 29 Nm (21 ft. lbs.).