Velvet Drive 71C & 72C Torque Specifications
Bolt and fastener torque specifications (non-lubricated) for Velvet Drive 71C and 72C marine transmissions, with part numbers, in foot-pounds (ft-lb) and newton-meters (N·m).
| Part number | Description | ft-lb | N·m |
|---|---|---|---|
| 9418892 | 5/16-24 Shift Lever Nut | 8-11 | 11-15 |
| 179796 | 1/4-20x1/2 Hex Head Bolt | 8-11 | 11-15 |
| 4775L | Coupling Nut | 160-260 | 217-353 |
| 179859 | 7/16-14 x 1-1/4 Hex Head Bolt | 42-50 | 57-68 |
| 10-00-183-043 | 7/16-14 x 1-1/14 Hex Head Bolt | 42-50 | 57-68 |
| Self-locking | |||
| 10-00-183-073 | 7/16-14 x 7/8 Lock Bolt | 42-50 | 57-68 |
| 179864 | 7/16-14 x 1-3/4 Hex Head Bolt | 42-50 | 57-68 |
| 20-01-034-003 | Dipstick Tube | 10-40 | 14-55 |
| 10-00-183-021 | 5/16-18 x 1 Hex Head Bolt | 17-22 | 23-30 |
| 20-00-183-017 | 3/8-16 x 1-1/4 Capscrew | 27-37 | 37-50 |
| 4885B | 3/4-14 Dryseal Bushing | 25-35 | 34-48 |
| X1516H | 3/8-18 Pipe Plug | 17-27 | 23-37 |
| 444687 | 1/8-27 Pipe Plug | 7-12 | 9-16 |
| 10-00-640-004 | 9/16-18 Switch Assembly | 20-30 | 28-42 |
| 4853E | 7/16-14 x 1-1/4 Lock Bolt | 42-50 | 57-68 |
| 179840 | 3/8-18 x 1-1/8 Hex Head Bolt | 27-37 | 37-50 |
| 4853B | 5/16-18 x 3/4 Lock Bolt | 17-22 | 23-30 |
| 4776BB | 7/16-14 x 7/8 Lock Bolt | 42-50 | 57-68 |
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