805393 Mercruiser SCREW

Start By:a. remove belt tightener1. Remove the hood. Remove the guard assembly from the right side of the engine. 2. Loosen bolts (1) and (3) and move the alternator toward the engine. Remove the v-belts from the alternator pulley. 3. Remove three bolts (9), the nuts, spacers and heat shield (10) from the exhaust elbow.4. Remove the bolts and guard (8) from the timing gear cover.5. Remove four bolts (4), the bolts and plates (6) and guard assemblies (5) and (7) from the radiator. 6. Remove six bolts (15) and fan assembly (14) and adapter (12) as a unit from the fan drive.7. Remove v-belts (2) from the fan drive pulley.8. Fasten a hoist and tooling (A) to fan drive (13). Remove four bolts (11), and remove the spacer and fan drive (13) from the engine. The weight of the fan drive is 18 Kg (40 lb). The following steps are for installation of the fan and fan drive.9. Use tooling (A) and a hoist to position the spacer and fan drive (13) on the engine. Install four bolts (11) that hold the fan drive.10. Put v-belts (2) in position on the fan drive pulley.11. Fill the cavity in adapter (12) with 2S3230 Bearing Lubricant.12. Position adapter (12) and fan assembly (14) as a unit on the fan drive. Install six bolts (15) that hold them in place.13. Position guard assemblies (5) and (7) on the radiator, and install bolts (4) and the bolts and plates (6) that hold the guard assemblies in place.14. Install guard (8) on the timing gear cover.15. Position heat shield (10) on the exhaust elbow and install the three spacers, nuts and bolts (9) that hold it.16. Put v-belts (2) in position on the alternator pulley.17. Use a belt tension gauge, such as a Burroughs BT-33-72C gauge to check the belt tension. Adjust a new belt set to a gauge reading of 534 22 N (120 5 lb). Adjust a used belt set to a gauge reading of 400 44 N (90 10 lb). Tighten bolts (1) and (3).18. Install the hood. Install the guard assembly on the right side of the engine.End By:a. install belt tightenerDisassemble And Assemble Fan Drive
Start By:a. remove fan and fan drive 1. Move pulley (4) away from hub (3).2. Remove bolt (1), washer (2) and nut (7).3. Remove hub (3) and the bearings from bracket assembly (5) as an assembly. 4. Remove spacer (8) and pulley (4) from bracket assembly (5).5. Remove bearing cone (14) and spacer (13) from hub (3).6. Remove seal (9) and bearing cone (12) from the hub.7. If necessary, remove bearing cups (10) and (11) from hub (3). The following steps are for assembly of the fan drive.8. If bearing cups (10) and (11) were removed, lower the temperature of the bearing cups, and install them in hub (3).9. Put bearing cone (12) in position in the hub, and install seal (9) with tool (A). Install the seal with the lip toward the inside of hub (3). Put a thin coat of 2S3230 Bearing Lubricant on the lip of the seal.10. Install spacer (8) on bracket assembly (5).11. Make sure four mounting bolts (6) are put in position in bracket assembly (5). Put pulley (4) and hub (3) in position on the bracket assembly.12. Install spacer (13) in hub (3).13. Fill the cavity between the bearings with 2S3230 Bearing Lubricant, and install bearing (14).14. Put washer (2) in position on the bearing cone, and install bolt (1) and nut (7).15. Put pulley (4) in position on hub (3).End By:a. install fan and fan drive