LINES GP-AIR CONDITIONER 3794711 - Caterpillar

start by:a) remove timing gear coverb) remove fuel injection pump and governor drive 1. Remove four bolts (2), plate (3) and idler gear (1). 2. Use tooling (A) to remove camshaft gear (4).
Do not turn the crankshaft with camshaft gear removed. Damage can be caused to pistons and valves or both.
3. Remove bolts (5) that hold timing gear plate (6) to cylinder block.4. Remove timing gear plate (6). 5. Use tooling (B) to remove bearing from idler gear.Install Timing Gears And Plate
1. Install a new gasket on timing gear plate. 2. Put timing gear plate (1) in position on cylinder block and install the bolts that hold timing gear plate to cylinder block.3. Cut timing plate gasket to make it even with the bottom of cylinder block.4. Heat camshaft gear (2) to a maximum temperature of 600°F (315°C) and install on camshaft. 5. Use tooling (A) to install bearing in idler gear.6. Install idler gear, plate and bolts. Be sure No. 1 cylinder is at top center on compression stroke. Install idler gear so the "V" mark (4) on idler gear is in alignment with "V" mark on crankshaft gear. The "K" marks (3) of camshaft gear can be seen at outer edges of idler gear.end by: a) install fuel injection pump and governor driveb) install timing gear cover