| Year | 1930 |
| Date | 10-Apr |
| Volume | 62 |
| Issue | 1,509 |
| Page | 339 |
| Category | Petrol Engine Topics |
| Part | |
| Title | Petrol Engine Topics |
| Author | Edgar T.Westbury |
| Notes | Converting an old magneto, M.L. magneto type C.G.4., speed voltage curve for M.L. magneto type C.K. II, magneto and starting trouble, effect of petrol vapour on contact points, points about contact points |