GEAR-RING 1088770 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8S-2241 Camshaft Bearing Tool Group 1
8S-8293 Extension 1
5P-1667 Tube 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Ensure that the inside of the cylinder block is clean. Inspect the camshaft bore for metal burrs. Put a thin film of clean engine oil on the inside of the camshaft bearing bores and on each camshaft bearing prior to installation.Note: Two different camshaft bearings are used. Install the wider camshaft bearings in the front and rear camshaft bores. Install the narrow camshaft bearings in the inner bores.
Illustration 1 g00570127
Install all the camshaft bearings with Tool (A) so that the oil hole in the camshaft bearing is in a horizontal position. The installation angle (1) is 90 15 degrees.
Install the camshaft bearings with Tool (A) on the front side of the engine. Start the bearing that is being installed from the rear of each bore. Pull the bearing into the bore with Tool (A). Use the following procedure for achieving the proper installation depth for the bearings.
Illustration 2 g00583232
Install the rear camshaft bearing. Pull the bearing into the bore until the front face of the bearing is flush with the front face of bore (2).
Install the narrow internal camshaft bearings. Start at the rear of the engine and work forward. Pull each bearing into the bore until the front face of the bearing is flush with the front face of the bore.
Illustration 3 g00569930
Measure the depth of the front camshaft bearing.
Install the front camshaft bearing with Tool (A) until the bearing is at the specified depth. the depth is measured from the front of the engine block. The front camshaft bearing for the installation depth should be 4.6 0.5 mm (0.18 0.02 inch) from the front face of the engine block.Note: Refer to Specifications, "Camshaft Bearings" for more information about installation depth for the remainder of the camshaft bearings.End By:
Install the camshaft. Refer to Disassembly and Assembly, "Camshaft - Install".
Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install".
Install the pistons and connecting rods. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Install".