821630A 1 Mercruiser ANODE ASSEMBLY

1. Remove the nut on rod (1).2. Remove vee belts (2) from the pulleys.
Do not damage the radiator core with the fan.
3. Fasten a hoist to the fan and adapter (3). Remove the bolts that hold adapter (3) to the fan drive.4. Carefully tilt the fan against the radiator core. 5. Fasten a hoist to pulley and fan drive (4).6. Remove the bolts that hold the fan drive to the cylinder head and to the support bracket. Remove the fan drive.Install Fan Drive
1. Fasten a strap and a hoist to fan drive (1).2. Put fan drive (1) in position and install bolts (2). 3. Fasten a strap and a hoist to adapter (3).4. Put adapter (3) and the fan in position and install the bolts. Make sure vee belts (4) are on or behind the pulley.5. Put vee belts (4) in position on the pulleys.6. Use a belt tension gauge such as Borroughs Tool Company Part No. BT-33-72C or an equivalent and make an adjustment of vee belts. Measure the belt nearest the radiator. Tighten new belts until the gauge indication is 535 22 N (120 5 lb.). Tighten the bolts that hold the alternator in position. Operate the engine at high idle for a minimum of 30 minutes. Make another adjustment of the belt tension. The correct gauge indication for used belts is 400 45 N (90 10 lb.).end by:a) install water temperature regulatorb) install hoodDisassemble Fan Drive
start by:a) remove fan drive 1. Remove O-ring seal (2) from around the bearing.2. Bend the tabs on lock (1) down.3. Remove the bolts, lock (1) and washer (3). 4. Remove pulley (4), the spacer and the hub from shaft assembly (5). 5. Remove bearing (6) from the hub. Remove the pulley from the hub. Bearing (7) and lip type seal (8) can stay with the pulley and hub when it is removed.6. Remove bearing (7) and lip type seal (8) from shaft assembly (5).7. Remove the spacer from the shaft assembly.Assemble Fan Drive
1. Install pulley (1) on hub (2) as shown. The pulley must be installed on the hub with the spacer down against the shoulder of the hub.2. Install the bearing in the hub.3. Use tooling (A) to install lip type seal (4) in the hub with the lip of the seal up. The top of the seal must be even with the end of the hub.4. Put 5P960 Multipurpose Type Grease on the lip of the seal. 5. Install spacer (3) in seal (4). Make sure mounting bolts (7) are put in position before the pulley and hub are installed on the shaft.6. Put pulley and hub assembly (5) on shaft assembly (6). 7. Install spacer (8) on the shaft assembly.8. Fill the hub with 5P960 Multipurpose Type Grease. 9. Put bearing (9) in position in the hub. Make sure the bearing makes a seat in the counterbore of the hub. 10. Put washer (10) in position on the bearing.11. Install lock (13) and bolts (12). Bend the tabs on the lock around the bolts. 12. Install O-ring seal (11) on the hub. end by:a) install fan drive