20053 Mercury REED STOP, MAIN BEARING REED VALVES

1. Remove bolts (1) and cover (2) from the housing for power take-off. 2. Remove ring (3). Remove drive gear (4). 3. Remove ring (5). Remove bolts (7).4. Remove bearing cage (6) with three 3/8" - 16 NC forcing screws. Remove the bushing from the bearing cage. 5. Remove drive gear (8) for the transmission oil pump.6. Remove bearing races (9) and (11) from the gear.7. Remove transmission oil pump (10). Remove inner race and roller assembly (12) with a hammer and punch. 8. Remove bolts (13) and bearing cage (15). Remove outer race and roller assembly (14) from the bearing cage with a hammer and punch.9. Remove the bolts that hold the cover for the drive shaft to the timing gear cover. Remove the cover with three 3/8" - 16 NC forcing screws. 10. Slide the drive shaft (16) for power take-off toward the front of the engine. Fasten a hoist to the drive shaft and remove it. Weight is 75 lb. (34 kg).
Bearing cage (6) must be removed before removing and installing the drive shaft to prevent damage to the bushing in the bearing cage.
Install Power Take-Off Drive Gears And Shaft
1. Fasten a hoist to the drive shaft for power take-off and put it in position through the timing gear cover and cylinder block. 2. Lower the temperature of bushing (1). Install the bushing in bearing cage (2). Make sure the oil holes in the bushing and cage are in alignment. 3. Put bearing cage (2) in position over the drive shaft. Install the bolts that hold it to the housing for power take-off.4. Lower the temperature of outer race and roller assemblies (10) and (11). Install the outer race and roller assemblies in the housing for power take-off and bearing cage (9).5. Heat inner races (12) and (13) to a maximum temperature of 600°F (315°C). Install the races on gear (14).6. Install the oil pump for the transmission on the housing for power take-off. Install gear (14) over the shaft for the oil pump.7. Install snap ring (4) on the drive shaft. Install drive gear (3) on the drive shaft. Make sure the teeth of gears (3) and (14) are engaged. Install snap ring (5).8. Put bearing cage (9) in position in cover (15). Install bolts (16) that hold it.9. Put cover (7) in position on cover (15). Install nuts (8) that hold it. 10. Put cover (17) in position on the timing gear cover. Install the bolts that hold it.11. Make a check of the end clearance for drive shafts (6) as follows: a) Remove cover (7). b) Check the end clearance for the drive shaft with tooling (A).c) The end clearance must be .022 to .038 in. (0.56 to 0.97 mm) for new thrust washers.d) The maximum permissible end clearance is .060 in. (1.52 mm). If the end clearance is more than .060 in. (1.52 mm), make a replacement of the thrust washers in the timing gear cover and cover (18).e) Remove tool group (A). Install cover (7).end by: a) install fan driveb) install hydraulic pump (if so equipped)