From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Summary of customer complaints regarding 'Servo Jaggers' and 'Noisy Tappets'.
| Identifier | ExFiles\Box 47\2\ Scan224 | |
| Date | 31th December 1929 guessed | |
| -5- Nature of Complaint. | No. of Cars. | Last Qtr's. Total. | Remarks. --- Servo Jaggers. | W. 5. N. 12. P. 1. Total 18. | 15. | On early Phantoms a rubber block is fitted to provide a damping device on the servo shaft. On later cars and present production a flat spring plate is standardised. Also, a friction device to the swinging arm can now be fitted to the older cars. --- Tappets Noisy. | W. 7. N. 11. P. 4. Total 22. | 23. | The grooved bushes for improved lubrication scheme are satisfactory and cure complaints, and are standard on present production. | ||