BOLT 8C3290 - Caterpillar

Remove Flywheel Housing
START BY:a) remove crankshaft rear seal and wear sleeve The removal and installation of the flywheel housing on all 3408 and 3412 Generator Sets is similar so only one will be shown. 1. Remove two bolts (1) that hold bracket assembly (2) in position on the flywheel housing. 2. Remove the bolt that holds clip (3) in position on the cover for the oil filter bypass valve. Remove four bolts (4) and move bracket assembly (2) away from the flywheel housing. 3. Remove the bolt that holds brace (5) to the aftercooler. Remove the bolt that holds brace (6) to the flywheel housing. Loosen clamp (7). 4. Fasten tool (A) and a hoist to the top of the air cleaner housing.5. Remove four bolts (9) that hold air cleaner support (8) against the flywheel. Remove the air cleaner housing and support. The weight of the air cleaner housing and support is approximately 23 kg (50 lb.). 6. Disconnect oil line (11) from the cylinder block. Steps 7 through 11 are for engines that have watercooled exhaust manifolds and turbochargers.7. Drain the cooling system to a level below that of the exhaust manifold.8. Remove the nuts and bolts that hold exhaust elbow (10) in position against exhaust manifold (12).9. Remove the bolts that hold elbow (13) in position against elbow (10). 10. Disconnect water line (14) from the top of the turbocharger. Remove the bolts that hold elbows (15) to watercooled exhaust elbows.11. Remove the bolts that hold oil line (11) to the top of the turbocharger. Remove oil line (11). 12. On engines with hot manifolds, remove the nuts and bolts that hold clips (16) to shield (17). Remove the two bolts that hold oil line (11) to the top of the turbocharger. Remove oil line (11). 13. Remove the two bolts that hold oil line (18) to the bottom of the turbocharger. Steps 14 through 17 are for engines with watercooled exhaust manifolds and turbochargers.14. Disconnect water line (19) from the bottom of the turbocharger. 15. Remove the bolt that holds clip (21) in position against the elbow. Loosen the end of water line (19) from bonnet (24).16. Remove the three nuts and bolts that hold manifold (22) to exhaust manifold (20).17. Remove the two bolts that hold elbow (23) to manifold (22). 18. Remove shield (25) and clamp (26) from the exhaust manifold. 19. On the other side of the engine, remove clamp (27) and support (28). 20. Fasten two straps and a hoist to turbocharger (29) as shown. Remove the four nuts that hold the manifold and turbocharger to plate (30). Remove turbocharger (29) and the manifold from the engine as a unit. The weight of the turbocharger and manifold is approximately 72 kg (158 lb.).21. Remove plate (30) and adapter (31) from the flywheel housing. 22. Remove the bolts that hold the oil pan to the flywheel housing. Loosen the rest of the bolts that hold the oil pan in position.23. Install