GEAR AS 2190638 - Caterpillar

2. Install spacers (3) between the cylinder block and the oil pan plate.3. Lift the front of the engine and put hydraulic jacks under each side of the oil pan plate directly under the spacers to hold the weight of the engine.4. Remove the spacers between the frame and the front support and lower the front of the engine on to the hydraulic jacks. **See OIL PAN.5. Remove cover (1) and cover (2) from the rear of the timing gear plate. 6. Remove four bolts (4) that hold front support (5) to the trunnion. Remove the front support. 7. Remove three bolts (6) that hold trunnion (7) to the timing gear cover. Remove the trunnion. Remove the O-ring seal from the trunnion.
Be extra careful during removal of the trunnion to prevent damage to the crankshaft front seal in the trunnion.
8. Remove the bolts that hold timing gear cover (8) in place. Carefully loosen the cover from the dowels and remove the cover. Weight of the timing gear cover is 48 lb. (22 kg).Install Timing Gear Cover
1. Clean the old gasket from the contact surfaces of the timing gear cover and timing gear plate.2. Install a new gasket on the timing gear plate. Cut the gasket even with the bottom face of the cylinder block. Put 5H2471 Gasket Cement on the bottom of the gasket where the gasket makes contact with the gasket for the oil pan plate. 3. Put timing gear cover (1) in position on the timing gear plate and install the bolts that hold it in place.4. Put clean engine oil on the lip of the crankshaft front seal and the outside diameter of the crankshaft. 5. Inspect the O-ring seal for damage and make a replacement if needed. Install O-ring seal (2) on the trunnion.6. Put trunnion (3) in position on the timing gear cover and install the three bolts that hold the trunnion in place.
Be extra careful during installation of the trunnion to prevent damage to the crankshaft front seal.
7. Put engine front support (4) in position on the trunnion and install the four bolts that hold the front support in place.8. Install the covers on the rear of the timing gear plate.9. Lift the front of the engine. Install the spacers, between the engine front support and the frame. Lower the front of the engine on to the spacers. Remove the two hydraulic jacks.10. Remove the spacers between the cylinder block and the oil pan plate. Tighten all of the bolts in the oil pan plate.end by:a) install oil panb) install water pumpc) install alternatord) install fan drivee) install crankshaft pulley