C8.7 Marine Engine Caterpillar

Removal Procedure

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Illustration 1	g03869363

1. Unplug sensor (4) and harness assemblies (3) .

2. Remove tube assembly (1) .

3. Remove tube assemblies (2) .

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Illustration 2	g03869505

4. Remove tube assembly (6) and tube assembly (7) .

5. Remove bracket assembly (5) .

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Illustration 3	g03869525

6. Remove hose (9) and hose (10) .

7. Remove breather assembly (8) .

8. Remove bracket (11) .

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Illustration 4	g03869548

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Illustration 5	g03870660

9. Attach a suitable lifting device to the exhaust manifold (15). The weight of exhaust manifold (15) is approximately 59 kg (130 lb).

10. Remove harness assembly (12) .

11. Remove bolts (14) .

12. Remove bolts (17), bolts (19), and bracket (19) .

13. Remove exhaust manifold (15) .

14. Remove nuts (16) and exhaust adapter (13) .

Install Procedure

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Illustration 6	g03896819

1. Install exhaust manifold (15) in the reverse order of removal.

   1. Tighten bolts (14) to a torque of 17 ± 2 N·m (146 ± 13 lb in) using sequence illustrated above.

   2. Tighten bolts (16) to a torque of 46 ± 5 N·m (34 ± 3 lb ft)

   3. Tighten bolts (17) to a torque of 80 ± 8 N·m (59 ± 6 lb ft).

   4. Tighten bolts (18) to a torque of 46 ± 5 N·m (34 ± 3 lb ft).