BOOT AS 5G0475 - Caterpillar

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If the camshaft is out of time more than 18 degrees (approximately 1/2 of the timing pin is out of the groove), the valves can make contact with the pistons. This will cause damage to the engine. Refer to Testing and Adjusting, "Camshaft Timing" for more information.
Remove timing pin (16) from the storage position on the side of the engine.
Turn the camshaft until timing pin (16) can be installed through the cylinder block and into groove (17) that is in the camshaft.
Repeat Steps 4 and 5 for the camshaft on the opposite side of the engine.
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Remove bolts (19), cover (18), and plug (20).
Install one bolt (19) into the flywheel housing through the hole for plug (20). Use Tooling (A) and a ratchet to turn the flywheel until bolt (19) can be installed through the hole and into the flywheel. Doing so will position the No. 1 cylinder at the top center. Refer to the Testing and Adjusting Module for more information.
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Use the following procedure in order to install camshaft drive gears (8).
Clean the taper of the camshaft and the tapered bore of the camshaft gear with a lint free cloth saturated with solvent to remove oil. Clean the parts again with a lint free alcohol wipe in order to remove any residue. The alcohol wipe will be dirty after cleaning the parts. Clean the parts again with a lint free alcohol wipe until no residue is left on the alcohol wipe. Note: The camshaft and the tapered bore of the camshaft gear must be clean, dry, and free of residue before assembly.
Ensure that the camshaft timing pins and the timing pin for the flywheel are installed.
Place camshaft drive gears (8) in position. Remove the backlash by rotating the gears in the opposite direction of camshaft rotation. Note: For "Standard Rotation" engines, turn the camshaft drive gears COUNTERCLOCKWISE. For "Reverse Rotation" engines, turn the camshaft drive gears CLOCKWISE.
Install the bolt and plate (7).
Install the bolt and timing ring (11). Ensure that the hole in the timing ring is properly seated on the locating pin.
Tighten the bolt to a torque of 360 N m (265 lb ft).
Place a Mark on the bolt.
Place a driver against the retaining plate of the camshaft gear. Strike the driver solidly with a hammer 3 to 4 times.
Tighten the bolt again to a torque of 360 N m (265 lb ft).
Repeat Steps 9.h and 9.i until the Mark has turned at least 90 degrees.
Remove the timing pins from the camshafts. Install the timing pins in the original locations.
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Install cover (6) with the bolts on the flywheel housing.
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Install the bolts in cover (5) and connect harness assembly (X).
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Install the bolts and cover (3) on the front housing.
Install the bolts and cover (4) on the front housing.
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Remove bolt (19) from the flywheel. Install plug (20) in the timing hole. Remove Tooling (A) and install cover (18) with bolts (19) on the flywheel housing.
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Remove the O-ring seals