Crankcase and Crankshaft · Engine and Clutch
| System | Engine and Clutch |
| Subsystem | Crankcase and Crankshaft |
| Assembly | Flywheel |
| Thread | M12x1.5 |
| Years | 1972–1977 |
| Vehicles | 911T/E/S |
| Confidence | Factory Verified |
Source: Porsche 911 Workshop Manual, Section 0.2-5/2 (Tightening Torques for Engine)