TUBE AS 3965566 - Caterpillar

start by:a) remove radiator and guardb) remove timing gear coverc) remove transmission oil pump *d) remove pump drive (transmission)e) remove valve lifters and push rods*This operation is in the POWER TRAIN DISASSEMBLY AND ASSEMBLY section. 1. Turn the engine with tool (A) until the bolts in camshaft rear gear (1) are visible. Remove the four bolts. Pull gear (1) loose from the camshaft.2. Turn the engine with tool (A) until the "V" marks on the front of the timing gears are in alignment. Install bolt (B) through gear (1) into the camshaft. 3. Remove the two bolts (3) and the plate.4. Pull camshaft assembly (2) approximately 2 in. (50.8 mm) out of the cylinder block.5. Fasten gear (1) to the flywheel housing with wire. Remove bolt (B) and remove gear (1).
When bolt (B) is removed the rear camshaft gear is free to fall in the flywheel housing. If the gear falls in the flywheel housing the engine must be removed to remove the gear.
6. Remove the camshaft assembly from the cylinder block.
Be careful not to cause damage to the camshaft bearings as the camshaft is removed.
7. If necessary, remove camshaft gear with tool (D). Remove dowel on the taper end of the camshaft with tooling (C).Install Camshaft
1. Heat gear (1) to a maximum temperature of 600°F (315°C). Install gear (1) on camshaft (2). Make sure the key for gear (1) is in position on camshaft (2) before gear (1) is installed.2. Install pin (3) until it is extended .345 .010 in. (8.76 0.25 mm) from the end of the camshaft.3. Put 2P2506 Anti-Seize Compound on the camshaft lobes and valve lifter rollers. Put clean engine oil on the bearing journals of the camshaft.4. Install the camshaft until the rear of the camshaft is even with the rear of the cylinder block.5. Fasten a safety wire to the rear camshaft gear. Put the gear in position and use bolt (B) to hold it. 6. Make an alignment of the "V" mark on gear (1) with the "V" mark on gear (5) and install the camshaft all the way in the cylinder block. 7. Install plate (4) and the bolts.8. Make an alignment of the dowel in the rear of the camshaft with the dowel hole in camshaft rear gear (6). Remove bolt (B) and the safety wire.9. Turn the engine with tool (A) and install the bolts to hold gear (6). Because of the position of the bolts the torque on the bolts must be checked three times.end by:a) install valve lifters and push rodsb) install pump drive (transmission)c) install transmission oil pump *d) install timing gear covere) install radiator and guard*This operation is in the POWER TRAIN DISASSEMBLY AND ASSEMBLY section.