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).
Quarterly report summarizing customer complaints by vehicle model and fault type.
| Identifier | ExFiles\Box 130\4\ scan0147 | |
| Date | 31th March 1937 guessed | |
| - 5 - EXHAUST SYSTEM RATTLE. 25 HP. 30 HP. PH.II. PH.III. TOTAL. GRAND TOTAL. REMARKS. March Quarter. C.C. 18 10 3 5 36) C.P. 20 5 4 - 29) 65 Mainly rattle from flexible suspension. Previous Quarter. C.C. 23 7 3 - 33) C.P. 9 2 3 - 14) 47 Six Months. 70 24 13 5 112 112 ENGINE - RATTLE FROM TIMING GEARS. March Quarter. C.C. 24 2 13 - 39) C.P. 17 5 4 - 26) 65 This feature urgently requires improvement. 20/25 HP. Most of these complaints are on cars already fitted with cam balancing device. This is not a complete cure. 40/50 HP. Mainly knock from cam shaft, and is cured by reducing end play. Previous Quarter. C.C. 34 11 8 - 53) C.P. 12 2 3 - 17) 70 Six Months. 87 20 28 - 135 135 VALVES STICKING. March Quarter. C.C. - - 4 - 4) C.P. - - 7 - 7) 11 Modified exhaust valve guides are being used for complaints of PH.II. Previous Quarter. C.C. 1 - 8 3 12) C.P. - - 5 1 6) 18 Six Months. 1 - 24 4 29 29 TOTAL HYDRAULIC COMPLAINTS. March Quarter. C.C. 37 8 24 9 78) C.P. 15 3 4 1 23) 101 Previous Quarter. C.C. 31 3 23 5 62) C.P. 6 1 3 - 10) 72 Six Months. 89 15 54 15 173 173 | ||