Exhaust Front Pipe

EXHAUST FRONT PIPE - V8
Service repair no - 30.10.09

Remove
1. Raise vehicle on 4 post ramp.
2. Support transmission using a suitable stand.





3. Remove 4 nuts and 2 bolts securing transmission mount to crossmember and discard nuts.
4. Remove transmission snubber bar.
5. Remove 2 bolts securing rear of side acoustic covers to crossmember.
6. Remove 3 of 4 nuts and bolts securing each side of crossmember to chassis.
7. With assistance, remove remaining bolt securing crossmember and remove crossmember.
8. Disconnect 2 oxygen sensor harness multiplugs from oxygen sensor flylead.
9. Release 2 oxygen sensor flylead multiplugs from brackets.
10. Release flyleads from 2 clips.
11. Remove 2 nuts securing front pipe to intermediate pipe flange.
12. Remove 6 nuts securing front pipe to exhaust manifold down pipe flanges
13. Using assistance, remove front pipe and collect 2 front pipe to manifold gaskets. Do not carry out further dismantling if component is removed for access only.
14. Remove 2 heated oxygen sensors from front pipe and discard sealing washers.
15. Fit NEW sealing washers to heated oxygen sensors.
16. Fit heated oxygen sensors to front pipe and tighten to 20 Nm (15 ft. lbs.)


Refit
17. Ensure all mating faces are clean.
18. Using assistance, position front pipe and NEW gaskets to manifold.
19. Fit but do not tighten nuts securing front pipe to manifolds.
20. Align front pipe to intermediate pipe, fit nuts and tighten to 25 Nm (18 ft. lbs.)
21. Tighten front pipe to manifold nuts to 50 Nm (37 ft. lbs.)
22. Connect heated oxygen sensor multiplugs to brackets.
23. Connect oxygen sensor multiplugs.
24. Connect oxygen sensor fly leads to clips.
25. Using assistance, fit crossmember to chassis.
26. Fit nuts and bolts and tighten to 45 Nm (33 ft. lbs.)
27. Fit transmission snubber bar.
28. Fit bolts and NEW flange nuts securing transmission mount to crossmember and tighten to 45 Nm (33 ft. lbs.)
29. Remove transmission stand.
30. Align rear of side acoustic covers to crossmember and secure with threaded fasteners.