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 table of complaints, fixes, and production updates for the 20 HP model for the quarter ending June 1928.
| Identifier | ExFiles\Box 76\3\ scan0180 | |
| Date | 30th June 1928 | |
| KEY CARDS - 20 HP. QUARTER ENDING JUNE, 1928. INDEX LETTER. | COMPLAINT & REMARKS. | NATURE OF WORK REQ'D.{John DeLooze - Company Secretary} | COST PER CAR. | WHAT IS BEING DONE TO OVERCOME COMPLAINT. | TOTAL NO.OF CARS WHICH MAY BE AFFECTED. | APPROX.NO. OF CARS ALREADY ATT'D.{John DeLooze - Company Secretary} TO. | NO. ATT'D.{John DeLooze - Company Secretary} TO LAST QUARTER. | NO. OF CARS YET TO BE DONE. | HOW LONG TO APPLY F.O.C. --- G.{Mr Griffiths - Chief Accountant / Mr Gnapp} | Seized Slipper Drive. This may cause a broken crankshaft & certainly engine knocks & vibrations. | S/fit fabric washers and re-set the fric- -tion. | £2.1.3. | Fabric washers now standard on Production. | Any. | 348. (At least). | 44. | Not known. | 25,000 or guarantee. --- J.{Mr Johnson W.M.} | New Card for dealing with 20 HP. Front Springs is being prepared. --- M.{Mr Moon / Mr Moore} | Starter Motor Failures. (a) Incorrect distance from pinion to flywheel. (b) Better balance of pinion springs. (c) Slightly damaged teeth. (d) More damaged than (c). (e) Damaged beyond repair. | S/fit packing washers to suit. S/fit 3 new springs. Trim up teeth. Also either (a) or (b) or both would be done. Turn round flywheel on crankshaft 60°. S/fit new flywheel. | £0.9.2. £0.10.6. £2.16.11. £6.10.4. £7.11.7. | Improvements are now standard on Production and are fairly effective, but design is still liable to failure. | Any. | 237. | 36. | Not known. | 25,000 or guarantee. --- O.{Mr Oldham} | Weak Side Steering Tube. Old type tubes are of too light gauge. | S/fit complete new side steering tube. | £3.9.11. | The new and stronger tube also has new and more flexible springs to reduce joggles. | 1950. | 1226. | 66. | 624. | Always. --- P. | Steering Wobbles. | S/fit new spring loaded cross tube. | £3.2.7. | Now standard on Production. | 1730. | 402. | 38. | | 25,000 or guarantee. --- Q. | Failure of Rear Axle Thrust. The old thrust is liable to failure due to overload & new gears may be required if they are damaged. | S/fit new type of thrust bearings and - (a) Re-set Gears. (b) S/fit new gears. | - £10.7.10. £23.10.1. | New thrust now standard on Production, but we still get a few cases of failure. | 1525. | 284. | 35. | Not known. | 4 years. --- R.{Sir Henry Royce} | Failure of Rear Axle Thrust. Due to wear of soft Distance Piece. | S/fit a new hardened distance piece which is also keyed to shaft. If gears are damaged they are replaced. | £7.15.2. £20.17.5. | Same as above but soft distance piece was fitted to about 375 Production cars, concurrently to about 100 further cars by R.D. Depots. | 475. | 64. | 11. | Not known. | 4 years. | ||