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 on vehicle faults for the June quarter, broken down by model type and fault category.
| Identifier | ExFiles\Box 47\3\ Scan193 | |
| Date | 30th June 1931 guessed | |
| -6- 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. CARBURETTER FLOODING. June Quarter. C.C. 3 2 1 - 6 } 6 Stainless steel valve seatings are now W.P. - - - - - } available for use in cases of complaint. Depot Sheet to be issued. Previous " C.C. 3 1 1 - 5 } 8 W.P. - 2 1 - 3 } Six months. 6 5 3 - 14 14 CENTRAL LUBRICATION FAILURES. June Quarter. C.C. 1 9 - 19 29 } 33 These are mostly miscellaneous troubles W.P. - - - 4 4 } such as replacing drip plugs, remaking joints and clearing pipe lines. Previous " C.C. - 10 - 11 21 } 21 W.P. - - - - - } Six months. 1 19 - 34 54 54 TOTAL DYNAMO COMPLAINTS. June Quarter. C.C. 3 13 - 13 29 } 30 Half charge scheme is now standardised. W.P. - 1 - - 1 } Previous " C.C. 3 6 2 5 16 } 18 W.P. - - 1 1 2 } Six months. 6 20 3 19 48 48 DYNAMO FAILURES. June Quarter. C.C. 1 1 - 2 4 } 4 Minor adjustments to brush gear usually W.P. - - - - - } overcomes these troubles. Previous " C.C. 2 2 - 1 5 } 6 W.P. - - 1 - 1 } Six months. 3 3 1 3 10 10 | ||