TUBE AS 3660788 - Caterpillar

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Remove bolts (19), cover (18), and plug (20).
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Install one bolt (19) into the flywheel housing through the hole for plug (20). Use Tooling (D) and a ratchet to turn the flywheel until bolt (19) can be installed through the hole and into the flywheel. This will position the No. 1 cylinder at the top center. Refer to the Service Manual, "Testing and Adjusting Module" for more information.
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Place camshaft drive gears (8) into position on both of the camshafts.
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Install timing ring (11) and the bolt on the camshaft that is on the left side of the engine. Ensure that the hole in the timing ring is properly seated on the locating pin.
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Install plate (7) and the bolt on the camshaft that is on the right side of the engine.
Use the following steps to seat camshaft drive gears (8) onto the ends of the camshafts.
Tighten the bolt for timing ring (11) to a torque of 360 70 N m (265 52 lb ft).
Use a soft hammer to strike the bolt head for timing ring (11). This will help seat camshaft drive gear (8) on the camshaft.
Tighten the bolt for timing ring (11) again to a torque of 360 70 N m (265 52 lb ft).
Place an index mark on the bolt for timing ring (11).
Repeat Steps 22.b and 22.c until the bolt for timing ring (11) does not move after tightening the bolt. The marks should stay aligned.
Repeat Steps 22.a through 22.e in order to seat camshaft drive gear (8) on the opposite side of the engine.
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Remove the timing pins from the camshafts (17). Install the timing pins in original locations (16).
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Install the gaskets and two covers (6) over the camshaft drive gears on both sides of the engine.
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Remove bolt (19) from the flywheel. Install plug (20) in the timing hole. Remove Tooling (D) and install cover (18) with bolts (19) on the flywheel housing.
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Install two covers (4) on the front housing.
Install electronic control module (3). See Disassembly and Assembly, "Electronic Control Moduel (Engine) - Remove and Install".
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Remove the O-ring seals from valve lifters (5). Push the valve lifters against the camshaft.
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Install access covers (2) and tube assemblies (1) on both sides of the engine. End By:
Install the speed/timing sensor. See the Service Manual, "Electronic Troubleshooting" module.
Install the rocker shaft assemblies and the pushrods.