0436908 EVINRUDE CYLINDER & CRANKCASE ASSY.

At operating temperature, the engine cooling system is hot and under pressure. Steam can cause personal injury. Check the coolant level only after the engine has been stopped and the fill cap on the radiator is cool enough to touch with your bare hand. Remove the fill cap slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with shin and eyes to prevent personal injury.
Check the fill cap on the radiator to see if the cap is cool enough to touch with the bare hand. Remove the cap slowly to release pressure. Drain the coolant from the cooling system. The capacity of the scraper cooling system is 76 Liters (20 U.S. gal).
Hot oil and components can cause personal injury. Do not allow hot oil or components to contact the skin. Be sure that the engine and components are cool enough to touch with your bare hand prior to performing any service work.
Drain the oil from the torque converter, retarder and transmission. The capacity of the system is 66 Liters (16.4 U.S. gal). 1. Raise the bowl, and block each side as shown to level the power pack. 2. Attach lifting slings and a hoist. Remove four bolts (1) and the washers and retainers (2). Remove two bolts (6) and the washers, retainer (5) and pin (4) from hook (3). Remove hook (3). The weight of hook (3) is 363 kg (600 lb) 3. Loosen the nut and bolt (8). Slide the clamp down, and remove exhaust extension (7). Loosen the nut and bolt (10), and remove screen assembly (9). Remove the four bolts and the washers on each side of the two hood sections. 4. Install Tool (A) and a lifting sling and a hoist, as shown. Remove front hood (12). The weight of hood (12) is 24 kg (53 lb) 5. Install Tool (A) and lifting slings and a hoist, as shown, and remove hood (13). The weight of hood (13) is 23 kg (51 lb) 6. Remove bolt (18), the washer and two brackets (14). Disconnect electrical wires (15) and (16). Remove bolt (17) and the washer. Disconnect electrical wire connector (20) at the bottom of control box (19). 7. Disconnect electrical wire connectors (21) and (22). 8. Remove two bolts (24), the washers and differential fill tube (23).
Make sure all of the pressure is released from the air system before disconnecting any air lines. Failure to release the pressure can cause the air to release rapidly when the lines are disconnected and could cause personal injury.
9. Disconnect air lines (25) and (26). Turn the shut off valve to the "OFF" position and disconnect fuel line (27). Remove bolt (28) and the washer, and disconnect fuel line (29). 10. Remove the bolt, the washer and bracket (32) and (33).11. Disconnect electrical cable assembly (31) at disconnect switch (30). Disconnect electrical cable assembly (34) from the electric starting motor. 12. Remove two bolts (36), the washers, and move breather (35) for clearance. 13. Attach lifting device to the power pack, as shown for removal.14. Disconnect line (37) (not shown) from the bottom of the flywheel housing for clearance. Secure the line out of the way. 15. Remove the two nuts, the washers and bolts (40) and block (41).16. Remove the two nuts, the washers and bolts (39) at rear of rail (38) (each side). Remove the two nuts, the washers and the bolts on each side at the front of the rail. Remove the power pack from the scraper. The weight of the power pack is 2724 kg (6000 lb). The following steps are for the installation of the power pack. 17. Position the power pack in the scraper. The weight of the power pack is 2724 kg (6000 lb). Install the two nuts, the washers and bolts (39) at rear of rail (38) (each side). Install the two nuts, the washers and the bolts on each side at the front of the rail. Tighten to the torque of 434 % 20 N m (321 % 15 lb ft).18. Install block (41), the two nuts, the washers and bolts (40).19. Connect line (37) (not shown) from the bottom of the flywheel housing. 20. Install breather (35), two bolts (36), and the washers. 21. Connect electrical cable assembly (31) at disconnect switch (30). Connect electrical cable assembly (34) to the electric starting motor.22. Position brackets (32) and (33), and install the bolts and the washers. 23. Connect air lines (25) and (26). Connect fuel line (27). Connect fuel line (29), and install bolt (28) and the washer. 24. Put differential fill tube (23) in position and install two bolts (24) and the washers. 25. Connect electrical wire connectors (21) and (22). 26. Connect electrical wire connector (20) to the bottom of control box (19).27. Connect electrical wires (15) and (16). Install bolt (17) and the washer.28. Install two brackets (14) and bolt (18) and the washer. 29. With Tool (A) and a lifting sling and a hoist, install hood (13). The weight of hood (13) is 23 kg (51 lb) 30. With Tool (A) and a lifting sling and a hoist, install front hood (12). The weight of hood (12) is 24 kg (52 lb) 31. Install the four bolts and the washers on each side of the two hood sections.32. Install exhaust extension (7), and position the clamp. Install the nut and bolt (8).33. Put screen assembly (9) in position, and install the nut and bolt (10). 34. Use a lifting sling and a hoist, and install hook (3). The weight of hook (3) is 363 kg (600 lb). Install retainer (5) and pin (4) to the hook (3). Install two bolts (6) and the washers.35. Install retainers (2) and four bolts (1) and the washers. 36. Remove the block from each side of the bowl.End By:a. install drive shaft