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 brake issues including seizure, thumping, and inefficiency across various car models.
| Identifier | ExFiles\Box 130\1\ scan0082 | |
| Date | 30th September 1933 guessed | |
| - 2 - 20 HP. 25 HP. PH.I. PH.II TOTAL. GRAND TOTAL. REMARKS. BRAKES SEIZE - REAR. September Quarter. C.C. - 30 - 2 32) W.P. - 5 - 1 7) 39 Previous Quarter. C.C. - 41 1 1 43) W.P. 1 - - - 1) 44 Six Months. 2 76 1 4 83 83 REMARKS: Modification to 20/25 rear brake shaft bearing is being carried out on all cars as they become available. Depot Sheets No. Hd.{Mr Hayward/Mr Huddy}229. New 20/25 cars have improved lubrication scheme to outer bearings. Also increased clearance being given to footbrake on synchromesh cars. See Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}246. This is having further attention of Experimental Department. BRAKES THUMP. September Quarter. C.C. 1 11 2 8 22) W.P. - - - - -) 22 Previous Quarter. C.C. - 9 - 2 11) W.P. - 2 - - 2) 13 Six Months. 1 22 2 10 35 35 BRAKES INEFFICIENT. September Quarter. C.C. 8 89 2 47 146) W.P. 1 8 - 8 17) 163 Previous Quarter. C.C. 3 91 2 37 133) W.P. - 6 - 7 13) 146 Six Months. 12 194 4 99 309 309 REMARKS: Inefficiency on 20/25 is now being dealt with by re-lining the servo and fitting oil guards, to Depot Sheets Hd.{Mr Hayward/Mr Huddy}224 and Hd.{Mr Hayward/Mr Huddy}232. Oil feed to servo is now deleted on new cars, and Depot Sheet is being circulated instructing retrospective action. In addition, a test for servo efficiency is being instructed to Depots. SERVO INEFFICIENT, ALSO JAGGERS AND GRABS. September Quarter. C.C. 1 27 6 12 46) W.P. - 26 - 9 35) 81 Previous Quarter. C.C. - 40 8 16 72) W.P. 8 16 - 1 17) 89 Six Months. 9 109 14 38 170 170 Handwritten text: MORE INFORMATION REQUIRED | ||