LAMP GP-REAR 4953424 - Caterpillar

Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A(1) 9U-6198 Crankshaft Turning Tool 1
A(2) 5P-7306 Housing 1
5P-7305 Engine Turning Tool 1
C 5P-7305 Timing Pin (Crankshaft) 1
268-1966 Adapter 1
B 230-6284 Timing Pin (Camshaft) 1
D 9U-7324 Indicator Bracket 1
7H-1942 Dial Indicator 1
3S-3268 Indicator Contact Point 1
7H-1940 Universal Attachment 1
(1) The Crankshaft Turning Tool is used on the front pulley.
(2) This Tool is used in the aperture for the electric starting motor.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 7 g02706999
If necessary, use Tooling (A) to ensure that number one piston is at top dead center on the compression stroke. Refer to System Operation, Testing and Adjusting, "Finding Top Center Position for No.1 Piston".
Ensure that Tooling (C) is installed in Hole (Y) in the cylinder block. Use Tooling (C) in order to lock the crankshaft in the correct position. Note: Do not use excessive force to install Tooling (C). Do not use Tooling (C) to hold the crankshaft during repairs.
Illustration 8 g02711852
Illustration 9 g02711854
Alignment of timing marks
Illustration 10 g02711881
Ensure that camshaft gear (1) and key (11) are clean and free from wear or damage.
If necessary, install key (11) into the nose of camshaft (12). Note: Ensure that the key is squarely seated.
Align the keyway in camshaft gear (1) with the key in the camshaft. Install camshaft gear onto the camshaft. Ensure that the timing marks on gear (1), gear (7) and gear (8) are in alignment and that the mesh of the gears is correct. Refer to Illustration 9.
Illustration 11 g02711855
Install Tooling (B) through the hole in camshaft gear (1) into the front housing. Install washer (9) and bolt (10) to camshaft gear (1).
Remove Tooling (B) and Tooling (C).
When bolt (10) is a 8.8 Grade. Tighten bolt (10) to a torque of 95 N m (70 lb ft). When bolt (10) is a 10.9 Grade. Tighten bolt (10) to a torque of 120 N m (89 lb ft).
Use Tooling (D) in order to check the backlash for gear (1), gear (7), and gear (8) are within specified values. Refer to Specifications, "Gear Group (Front)" for further information.
Use Tooling (D) in order to check the end play for camshaft gear (1) is within specified values. Refer to Specifications, "Camshaft" for further information.
Illustration 12 g02711851
Install a new O-ring seal (2) to plug (3). Install plug (3) to the cylinder block. Tighten locking bolt (5) against the spacer to a torque of 21 N m (186 lb in).
Lubricate the teeth of the gears with clean engine oil.
Adjust the valve lash. Refer to System Operation, Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust". End By:
Install the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and Install".
Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".