| Year | 2007 |
| Date | 05-Jan |
| Volume | 198 |
| Issue | 4,290 |
| Page | 16 |
| Category | Stationary Engine |
| Part | 6 |
| Title | Overhead Valve Engines |
| Author | Colin Pape (France) |
| Notes | Continues description of Step 3b engine and starts on the Step 4. Cylinder head, squirrel cage around the crankshaft, valve rotor, big ends, connecting rods, aligning the crankshaft bearings, frames mounted, the V-6 engine, Step 4 - a self-starting reversing compound engine, the Step 4 engine running, slave cylinders |