ENGINE AR-PRIMARY 4787136 - Caterpillar

START BY:a. remove camshaftb. remove timing gears and platec. remove flywheel housing The camshaft bearings may be pulled toward the inside or the outside of the cylinder block for removal.1. Use tooling (A), and remove the rear camshaft bearing.2. Remove the remainder of the camshaft bearings with tool (A).Install Camshaft Bearings
Install the camshaft bearings with the oil hole in the bearing in alignment with the oil hole in the block and with the joint of the bearing above a horizontal center line through the bore of the bearing.
1. Install the camshaft bearings in the cylinder block with tools (A) and (B) as follows:a. Install the center bearing to a depth of 287.5 0.8 mm (11.32 .03 in.) [Dimension (A)] from the front surface of the block.b. Install the rear bearing to a depth of 556.8 .08 mm (21.92 .03 in.) [Dimension (B)] from the front surface of the block.c. Install the front bearing even (flush) with the front surface of the block and no more than 0.5 mm (.02 in.) [Dimension (C)] deep.END BY:a. install flywheel housingb. install timing gears and platec. install camshaft