Lubrication · Engine and Clutch
| System | Engine and Clutch |
| Subsystem | Lubrication |
| Assembly | Crankcase |
| Thread | M18x1.5 |
| Years | 1982–1983 |
| Vehicles | 911 Turbo |
| Confidence | Factory Verified |
Source: Porsche Technical Specifications (WKD 423110, 911 SC/Turbo, 82,83 Models), page 57 - Anzugsdrehmomente fuer Motor (Tightening Torques for Engine)