Crank Drive, Belt Drive
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| Designation | Thread | Method | Value | Applies to engine | Note | |
|---|---|---|---|---|---|---|
| M97/77 and M97/74 - 997 GT3 | M97/77R - 997 GT3 RS | |||||
| Pulley (steel) | M14 x 1.5 | Torque | 250 | X | Replace screw | |
| Pulley (aluminum) to crankshaft | M14 x 1.5 | Torque | 170 Nm (126 ft. lb.) | X | X | Replace screw |
| Dual-mass flywheel to crankshaft | M10 - 12.9 | Torque | 85 Nm (63 ft. lb.) | X | ||
| Single-mass flywheel to crankshaft | M10 - 2.9 | Initial tightening | 10 Nm (7.5 ft. lb.) | X | X | Only items 1 + 2 (see Fig. 478 in INSTALLING FLYWHEEL ) |
| Single-mass flywheel to crankshaft | M10 - 2.9 | Initial tightening | 25 Nm (19 ft. lb.) | X | X | Tighten all screws according to specified tightening sequence |
| Single-mass flywheel to crankshaft | M10 - 12.9 | Final tightening | 30 Nm (22 ft. lb.) + 45° torque angle | X | X | Tighten all screws according to specified tightening sequence |
| Connecting rod bolts | M10 x 1.25 | Initial tightening | 30 Nm (22 ft. lb.) | X (not M97/74) | X | Always observe: → 1344IN MOUNTING SPECIFICATION FOR CONNECTING ROD BOLTS - GT3 |
| Connecting rod bolts | M10 x 1.25 | Torque angle | 60° | |||
| Connecting rod bolts - GT3 RS 4.0 | M10 x 1.25 | Initial tightening | 25 Nm (19 ft. lb.) | M97/74 only | Always observe: → 1344IN MOUNTING SPECIFICATION FOR CONNECTING ROD BOLTS - GT3 |
|
| Connecting rod bolts - GT3 RS 4.0 | M10 x 1.25 | Torque angle | 120° | M97/74 only | ||