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 engine faults and their remedies for various car models.
| Identifier | ExFiles\Box 130\1\ scan0244 | |
| Date | 30th June 1935 guessed | |
| - 6 - ENGINE - RATTLE FROM TIMING GEARS. 25 HP. PH.II. TOTAL. GRAND TOTAL. REMARKS. June Quarter. C.C. 43 29 72) 103 20/25 HP. Synchromesh cars. Cam balancing C.P. 21 10 31) device now standardised on new cars and design for existing cars is available to Previous Quarter. C.C. 35 13 48) 84 overcome gear rattles. C.P. 27 9 36) 40/50 HP. Mainly knock from cam shaft and is cured by reducing end play. Six Months. 126 61 187 187 ENGINE - VALVE SPRINGS BROKEN OR WEAK. June Quarter. C.C. 2 - 2) 5 C.P. 2 1 3) Previous Quarter. C.C. 2 - 2) 4 C.P. 2 - 2) Six Months. 8 1 9 9 VALVES STICKING. June Quarter. C.C. - 14 14) 22 Parallel guides and increased diameter C.P. - 8 8) valve stems and longer undercut are now being used on Production and for Previous Quarter. C.C. 1 5 6) 12 complaints. C.P. - 6 6) Six Months. 1 33 34 34 | ||