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 report detailing vehicle faults such as sticking valves, oil pressure fails, water leaks, and hydraulic complaints, with proposed remedies.
| Identifier | ExFiles\Box 47\3\ Scan432 | |
| Date | 1st March 1932 guessed | |
| -10- 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. ENGINE - VALVES STICKING. March Quarter. C.C. - - 3 2 5 } 5 This can be cured by providing W.P. - - - - - } adequate clearance at the mouth of the valve guide to allow for Previous " C.C. - - 1 1 } 2 the formation of carbon. W.P. - - - - - } Six months. - - 3 4 7 7 ENGINE OIL PRESSURE FAILS. March Quarter. C.C. - 2 - 3 5 } 7 On 20 HP, this is due to oil W.P. - 2 - - 2 } surging in the crankcase when brak- ing, and is cured by fitting a baffle Previous " C.C. - - - - - } to the oil sump. W.P. - 2 - - 2 } 2 Six months. - 6 - 3 9 9 WATER LEAKS FROM CYLINDER. March Quarter. C.C. 1 1 8 24 34 } 86 Ph.I and Ph.II definitely cured by W.P. - - 29 23 52 } fitting nickel plated copper tubes in place of the original aluminium Previous " C.C. - 1 9 12 22 } 84 tubes. Also bronze core hole plugs W.P. - - 30 32 62 } instead of aluminium. Depot Sheet H.221. Six months. 1 2 76 91 170 170 All cars being attended to. TOTAL HYDRAULIC COMPLAINTS. March Quarter. C.C. 11 18 6 48 83 } 128 W.P. 5 8 3 29 45 } Previous " C.C. 18 53 11 55 137 } 168 W.P. 3 7 6 15 31 } Six months. 37 86 26 147 296 296 [Vertical text left margin]: RED SEAL, M P HARD FINISH | ||