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).
Statistical summary of engine faults and remedies for various car models over a six-month period.
| Identifier | ExFiles\Box 47\3\ Scan431 | |
| Date | 1st March 1932 guessed | |
| -9- 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. ENGINE - PISTONS SEIZED. - March Quarter. C.C. - W.P. - - - 1 - 1} 2 - Previous " C.C. - W.P. - - - 1 - 1} 1 Six months. - - 3 - 3 3 ENGINE - SLIPPER & SPRING DRIVES. - March Quarter. C.C. 6 5 7 2} 20} 28 Early 20 HP. & PH.I - These can be W.P. 4 - 2 2} 8} cured by fitting cotton duck washers in place of bakelite. - Previous " C.C. 9 7 4 9} 29} 31 20/25 HP - We do not have much W.P. - - - 2} 2} trouble on these cars. Six months. 19 12 13 15 59 59 Ph.II. - Latest type low inertia drive with 'window' type pressure plates cures this trouble. See Depot Sheets Hd.{Mr Hayward/Mr Huddy}190 and Hd.{Mr Hayward/Mr Huddy}227. DEPOT SHEET ENGINE - OIL PUMP NOISY. - March Quarter. C.C. 1 1 1 2} 5} 5 Depot Sheet Hd.{Mr Hayward/Mr Huddy}206 deals with the W.P. - - - -} fitting of an oil reservoir to the - Previous " C.C. 1 1 1 1} 4} 4 oil pump on Ph.II cars and is a definite improvement. W.P. - - - -} Six months. 2 2 2 3 9 9 ENGINE - VALVE SPRINGS BROKEN. - March Quarter. C.C. : : 1 3} 4} 14 New type valve springs with semi- W.P. : : 2 8} 10} open ends and circular grinding are being used and are a definite - Previous " C.C. 2 1 1 5} 9} 21 improvement. W.P. - 3 3 6} 12} Six months. 2 4 7 22 35 35 DEPOT SHEET | ||