9591 Mercury THROTTLE SHAFT (UPPER/LOWER)

1. Remove the bolts and cover (2) from adapter assembly (1).2. Remove the bolts and use two 1/2" - 13 NC forcing screws to remove adapter assembly (1) from the front drive housing. 3. Remove the bolts and remove adapter assembly (3), the drive gear and the shaft as a unit from the front drive housing.Install Accessory Drive (Front)
1. Make sure the two O-ring seals are in position on adapter assembly (3) and put clean engine oil on them.2. Install the shaft, the drive gear and adapter assembly (3) in the front drive housing. Make sure the teeth of the accessory drive gear are correctly engaged with the teeth of the lower accessory drive gear. Install the bolts to hold adapter assembly (3) in position. 3. Make sure the two O-ring seals are installed on adapter assembly (1) and put clean engine oil on them. Put clean engine oil on the bearing in adapter assembly (1) and install the adapter assembly. Install the bolts to hold adapter assembly (1) in position.4. Make sure the O-ring seal is installed on the cover. Put clean engine oil on the O-ring seal and install the cover on adapter assembly (1). Install the bolts to hold the cover in position.End By:a. install governor driveDisassemble Accessory Drive (Front)
Start By:a. remove accessory drive (front) 1. Remove O-ring seals (3) and (4) from adapter (1).2. Use a press and tooling (A) to remove bearing (2) from adapter (1). 3. Remove bolts (7) to remove gear (5) from shaft (6). 4. Remove bolts (8) and retainer washers (9) to remove shaft (6) from adapter (10). 5. Remove O-ring seals (12) and (13) from adapter (10).6. Use a press and tooling (A) to remove bearing (11) from adapter (10).Assemble Accessory Drive (Front)
1. Make an alignment of the oil hole in bearing (11) and the oil hole in adapter (10). Use a press and tooling (A) to install bearing (11) in adapter (10). Check the bore in the bearing after assembly. The bore in the bearing must be 75.000 0.055 mm (2.9528 .0022 in.). The bearing must be flush (even) with the surface of the adapter.2. Install O-ring seals (12) and (13) on adapter (10) and put clean engine oil on them. 3. Put clean engine oil on the bearing in adapter (10). Install shaft (6) in adapter (10). Install retainer washers (9) and bolts (8) to hold shaft (6) and adapter (10) together. 4. Put gear (5) in position on shaft (6). Install bolts (7) to hold them together. 5. Make an alignment of the oil hole in bearing (2) and the oil hole in adapter (1). Use a press and tooling (A) to install the bearing in adapter (1). Check the bore in the bearing after assembly. The bore in the bearing must be 75.000 0.055 mm (2.9528 .0022 in.). The bearing must be 1.5 0.5 mm (0.06 0.02 in.) below the surface of the adapter.6. Install O-ring seals (3) and (4) on adapter (1) and put clean engine oil on them.End By:a. install accessory drive (front)