PUMP GP-UNIT INJECTOR HYD 1629608 - Caterpillar

Remove Flywheel Housing
Start By:a. remove exhaust elbowb. remove tachometer drivec. remove crankshaft rear seal and wear sleeved. remove air starter (an attachment) Use a 9S9082 Engine Turning Tool to turn the flywheel in the direction of normal engine rotation and install timing pins in the camshafts before the flywheel is removed. 1. Remove two camshaft drive gears (1) from the ends of the camshafts with tooling (A). 2. Remove bolts (3) to remove bracket (2) from the flywheel housing. 3. Remove bolt (4), and disconnect marine gear oil pressure line (5) and air restriction line (6). 4. Remove bolts (7) to remove housing (8) with three water lines (11) from the engine.5. Remove three bolts (9) to disconnect marine gear oil pressure line (5), air restriction line (6) and two temperature sending unit wires (10) from the flywheel housing. Put the lines and wires out of the way of the housing.6. Drain the oil from the oil pan. 7. Remove all the bolts that hold the oil pan to the engine. Install two 3/8"-16 NC guide bolts (12) in each side of the oil pan. Fasten a hoist to the engine, and lift the engine approximately 12 mm (0.5 in.) off of the oil pan. Put two 50 mm wide × 100 mm long × 6 mm thick (2" wide × 4" long × 1/4" thick) plates (13) in position between the cylinder block and the oil pan on each side of the engine. Lower the engine on plates (13), and remove the hoist. The weights of the engines are as follows: 3508 Engines - 4445 kg (9800 lb.), 3512 Engines - 5443 kg (12000 lb.), 3516 Engines - 7763 kg (17114 lb.). 8. Use tooling (B) to fasten a hoist to flywheel housing (14). Remove two of the bolts that hold flywheel housing (14) in position, and install two 1/2"-13 NC guide bolts (15). Remove the remainder of the bolts that hold flywheel housing (14), and pull it from the dowels in the cylinder block. Remove the flywheel housing from the engine. The weight of the flywheel housing for 3508, 3512 and 3516 Engines is 237 kg (522 lb.).Install Flywheel Housing
The 3500 series engines use two types of flywheel housings. An accessory drive housing can be attached to the SAE "O" flywheel housing. The SAE "00" is the standard housing.
SAE "00" 1. Put the flywheel housing gasket in position on the rear