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 vehicle faults over a six-month period, categorized by issue and engine size.
| Identifier | ExFiles\Box 130\4\ scan0133 | |
| Date | 31th March 1937 guessed | |
| - 6 - 3½ LITRE. 4¼ LITRE. TOTAL. GRAND TOTAL. REMARKS. NOISY TAPPETS. March Quarter. C.C. 10 7 17) 17 Usually only adjustment required to make standard. C.P. - - -) Previous Quarter. C.C. 7 8 15) 15 C.P. - - -) Six Months. 17 15 32 32 NOISY REAR AXLE. March Quarter. C.C. 18 8 26) 59 31 faulty thrust bearings. There have been a few failures of latest type R.{Sir Henry Royce} & M.{Mr Moon / Mr Moore} bearings with oil grooves. C.P. 25 8 33) Previous Quarter. C.C. 42 6 48) 53 C.P. 5 - 5) Six Months. 90 22 112 112 OIL LEAKS FROM REAR AXLE CASING. March Quarter. C.C. 4 4 8) 59 29 Axle tube flange leaks. C.P. 41 10 51) 30 Pinion housing leaks. Previous Quarter. C.C. - - -) 63 C.P. 57 6 63) Six Months. 102 20 122 122 RATTLES FROM SHOCK DAMPER CONNECTIONS. March Quarter. C.C. 22 16 38) 134 These are chiefly excessive wear of front anchorage bushes and new cars have now improved lubrication and hardened steel bushes. C.P. 55 41 96) Previous Quarter. C.C. 15 3 18) 106 C.P. 70 18 88) Six Months. 162 78 240 240 | ||