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 statistical report on customer complaints for brakes, servos, and clutches across different vehicle models.
| Identifier | ExFiles\Box 130\4\ scan0050 | |
| Date | 30th June 1936 guessed | |
| - 3 - BRAKES INEFFICIENT. 25 HP. PH.II. TOTAL. GRAND TOTAL. REMARKS. June Quarter. C.C. 78 C.P. 19 30 8 108) 27) 135 Previous Quarter. C.C. 65 C.P. 31 29 10 94) 41) 135 Mainly due to servo inefficiency. 20/25 HP. 35° servo cams improve efficiency and are used in cases of complaint. See Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}284. Inefficiency may also be due to oil on servo. Oil feed to servo is now deleted on new cars and Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}253 has been issued instructing retrospective action. Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}252 describes treatment for inefficient servos. Oil guards to Depot Sheets Nos. Hd.{Mr Hayward/Mr Huddy}244 and 232 are being fitted. Six Months. 193 77 270 270 SERVO JAGGERS AND GRABS. June Quarter. C.C. 16 C.P. 2 6 - 22) 2) 24 Previous Quarter. C.C. 19 C.P. 11 12 3 31) 14) 45 Six Months. 48 21 69 69 TOTAL CLUTCH COMPLAINTS. June Quarter. C.C. 156 C.P. 32 16 9 172) 41) 213 Previous Quarter. C.C. 173 C.P. 51 29 9 202) 60) 262 Six Months. 412 63 475 475 CLUTCH JAGGERS. June Quarter. C.C. 27 C.P. 14 3 - 30) 14) 44 All R-R.{Sir Henry Royce} clutches. Majority of these are on cars without torque reaction dampers. Previous Quarter. C.C. 50 C.P. 29 4 1 54) 30) 84 Modification to synchromesh mechanism reduces jagger on second gear. Six Months. 120 8 128 128 Torque reaction dampers are being fitted retrospectively. | ||