| Year | 1956 |
| Date | 26-Jul |
| Volume | 115 |
| Issue | 2,879 |
| Page | 140 |
| Category | Automotive |
| Part | |
| Title | Boring the main bearings of a car engine |
| Author | 'Civils' |
| Notes | The boring bar, boring bar mountings, crude but efficient, aligning the boring bar, oiling clearances, final details |