3516C Petroleum Engines Caterpillar

Removal Procedure

Start By:

1. Remove the rocker shaft assemblies and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".
2. It is necessary to remove the electronic control module in order to remove the camshaft from the left-hand side of the engine. Refer to Disassembly and Assembly, "Electronic Control Module (Engine) - Remove and Install".

Note: The following procedure is for removing the camshaft from the left-hand side of the engine.

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Illustration 1	g03405366

1. Remove bolts (1) , bracket (2) , bolts (3) , and cover (4) .

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Illustration 2	g03405460

2. Remove bolts (5) , bolts (7) , and bracket (6) .

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Illustration 3	g03405564

3. Remove bolts (8) and cover (9) .

4. Repeat Steps 1 through 3 for the opposite side.

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Illustration 4	g03420699

5. Remove camshaft covers (10) .

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Illustration 5	g03405921

6. Push valve lifters (11) away from the camshaft. Hold the valve lifters in position with O-ring seals.

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Illustration 6	g03405961

7. Remove speed/timing sensors (12) .

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Illustration 7	g03406006

8. Remove bolt (13) . Remove ring (14) .

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Illustration 8	g03406010

9. Place the three washers from Tooling (A) behind plate (9) and install bolt (13) .

   Note: Plate (15) must be installed in order to keep camshaft drive gear (14) on the camshaft during the removal procedure. Plate (15) can be used from the right-hand camshaft drive gear. If necessary, fabricate a plate that has a diameter of 76 mm (3.0 inch). The thickness of the plate must be 19.00 mm (0.750 inch) thick. Drill a hole 22.00 mm (0.875 inch) in the center of the plate.

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Illustration 9	g03406034

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NOTICE
Do not apply more than 51675 kPa (7500 psi) pressure to the hydraulic puller. The adapters are rated at 6 1/2 tons each and the hydraulic puller is rated at 17 tons at 68900 kPa (10000 psi). If too much pressure is applied, the gear may be damaged.

10. Install Tooling (A) on camshaft drive gear (14) . Apply 51675 kPa (7500 psi) to the puller. Strike the screw on the puller with a hammer until camshaft drive gear (14) is free from the camshaft. Remove Tooling (A) from the camshaft drive gear. Remove the camshaft drive gear from the camshaft.

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Illustration 10	g03406041

11. Remove bolts (17) and thrust washer (16) .

12. Remove bolts (18) from the front housing.

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Illustration 11	g01122335

13. Install Tooling (B) onto both ends of the camshaft.

14. Install Tooling (C) on the front housing.

    Note: Tooling (C) can be installed on the flywheel housing in order to remove the camshaft from the rear.

15. Install Tooling (D) on the end of Tooling (B) .

Note: The following Steps are for 3512C and 3516C Engines.

16. Rotate the camshaft with Tooling (D) and pull the camshaft out of the engine until a suitable lifting device can be attached. The weight of the camshaft for 3512C Engine is approximately 90 kg (198 lb). The weight of the camshaft for 3516C Engine is approximately 95 kg (209 lb). Remove the camshaft from the cylinder block.

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Illustration 12	g03406045

17. Remove bolts (20) . Separate the camshafts (21) and remove spacer (19) .

18. Remove the dowel from the front of the camshaft (21) , if necessary.

19. Repeat Steps 8 through 18 for the opposite side.

Installation Procedure

1. Install camshafts (21) in the reverse order of removal.

   1. Ensure that the camshaft is installed according to the marks on the ends of the camshaft. If the dowel was removed from the front half of the camshaft, install the dowel. Install the dowel to 12.0 ± 0.5 mm (0.47 ± 0.02 inch).

   2. Tighten bolt (13) to a torque of 360 ± 40 N·m (266 ± 30 lb ft).

   3. Place a mark on bolt (13) .

   4. Place a driver against the retaining plate of the camshaft gear. Strike the driver solidly with a hammer 3 to 4 times.

   5. Tighten bolt (13) again to a torque of 360 ± 40 N·m (266 ± 30 lb ft).

   6. Repeat Steps 1.d and 1.e until the mark has turned at least 90 degrees.

   7. Tighten speed/timing sensors (12) to a torque of 40 ± 5 N·m (30 ± 4 lb ft).