| Year | 1936 |
| Date | 05-Mar |
| Volume | 74 |
| Issue | 1,817 |
| Page | 219 |
| Category | Petrol Engine Topics |
| Part | |
| Title | Mystery Troubles |
| Author | Edgar T.Westbury |
| Notes | Why buy puzzles - when model petrol engines provide equally good mental exercise? A reminiscence, beware of side-tracks, a reader's experience, a tentative diagnosis, valve grinding fallacies |