| Year | 1992 |
| Date | 15-May |
| Volume | 168 |
| Issue | 3,921 |
| Page | 606 |
| Category | Keith's Column |
| Part | 25 |
| Title | (How to Make' Em) A Miscellany of Motion Parts |
| Author | Keith Wilson |
| Notes | Various parts of the motion. Crankpin nuts, negative feedback, the flatting, front crankpin problems |