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 report detailing customer complaints for the 20HP model, categorized by issue with remarks on solutions.
| Identifier | ExFiles\Box 47\5\ Scan117 | |
| Date | 25th December 1926 guessed | |
| -2- 20H.P.(Complaints.) | Nature of Complaint. | No. of Cars. Prior to India. | India Series. | Remarks. | |---|---|---|---| | Rear Axle Thrust Bearings. | W. 13. N. 9. P. - | W. 5 - 18. N. 6 - 15. P. - | We are having failures with the new departure type Thrust Bearing, on account of the Distance Piece revolving and wearing. This Distance Piece is now being hardened and held in position. | | | | Total: 33. | | | Noisy Engine Gears. | W. 1. N. - P. - | W. 4 - 5. N. 1 - 1. P. - | No definitely permanent cure. A number have been found noisy due to worn Crankshafts at an early stage. | | | | Total: 6. | | | Engine knocks (various, chiefly Pistons.) | W. 1. N. - P. - | W. 4 - 5. N. 1 - 1. P. 1 - 1. | No definitely permanent cure. | | | | Total: 7. | | | Uncomfortable springing. | W. 2. N. 1. P. - | W. 2 - 4. N. 2 - 3. P. 1 - 1. | It is impossible to make a specification which will suit everybody. Something we can never hope to cure absolutely on present design. Hydraulic Shock Absorbers have now been standardised. | | | | Total: 8. | | | Broken Front Springs. | W. 11. N. 12. P. - | W. 1 - 12. N. - - 12. P. - | When the Front Springs break we invariably fit stronger Springs. Early specification for 20HP. springing was too light. | | | | Total: 24. | | | ||