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).
Responding to technical points raised from a 10,000-mile road test on the 14-G4 model.
| Identifier | ExFiles\Box 5a\2\ 02-page290 | |
| Date | 29th April 1930 | |
| To EP.{G. Eric Platford - Chief Quality Engineer} From Hs{Lord Ernest Hives - Chair}/Sa. c. to SS.{S. Smith} Wor.{Arthur Wormald - General Works Manager} c. to HV. Mx.{John H Maddocks - Chief Proving Officer} c. to S. S P 40 Hs{Lord Ernest Hives - Chair}/Sm.l/MJ.29.4.30. 10,000 MILES 14-G4. With reference to EP.{G. Eric Platford - Chief Quality Engineer}3/11.25.4.30. (1) EXHAUST. Since we have not altered anything except the sliding joint on the exhaust system, we do not expect exhaust booms to be any different from the present standard. We agree that the 20 HP. is not ideal for booming, and designs are now being manufactured for test to improve matters. (2) CLUTCH. We have had no quarterly complaints of 20 HP. clutches being slow in stopping. There is no reason why 14-G4 clutch should differ from standard in this respect. (3) MARLES STEERING. Receiving attention. (4) ENGINE GEARS. The design of these has not been altered. We are not recommending any alteration in tappet clearance for normal conditions at present. The consumption on the 10,000 miles road test confirms hs{Lord Ernest Hives - Chair}/AFL.l/MJ.29.4.30. Average for 10,000 miles low comp 14-G4 14.7 m/g.{Mr Griffiths - Chief Accountant / Mr Gnapp} " " 10,000 " high " 15.7 m/g.{Mr Griffiths - Chief Accountant / Mr Gnapp} (5) SPRINGING. If customers are complaining about 20 HP. springing we require more information to work on. Agree this car is not the best we can do at low speeds. (6) BRAKES. There is ample frictional adjustment left to cure the tendency to thump. We should expect adjustment to be needed after the mileage. HS{Lord Ernest Hives - Chair}/Sm. | ||