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).
Design status report listing modifications and their progress for the 4¼ Litre Bentley chassis.
| Identifier | ExFiles\Box 161a\4\ scan0221 | |
| Date | 28th September 1937 | |
| ITEM (2) DESIGN POSITION. Semi-floating rear hub. In hand. Preliminary layout of front suspension. In hand. Frame transmission and springs, rackard suspension, revised frame. In hand. PRESENT 4¼ LITRE BENTLEY CHASSIS. Larger helical gear oil pump. LeC.5605. Put aside. Thermostat in cylinder head. LeC.5655. Completed 10.5.37. Combined ignition and throttle control. LeC.5691. Completed 28.5.37. Modified ignition control. LeC.5697. Completed 28.9.37. Lubrication of front brake inertia balancer bearings. N.S.5143. Completed 7.5.37. Mod. to gas tight joint - brake and clutch pedals. N.Sch.5152. In hand. Earth contact plugs in front hubs. N.Sch.5156. Completed. Mounting of latest Mellowtone horns on lamp standards. In hand. Mounting of latest Mellowtone horns on front apron. In hand. Filter in water pump inlet. LeC.5705. Completed. Accelerator pedal shaft to overcome sticking. In hand. Mods. to cylinder head and block to facilitate casting. In hand. High front engine mounting. Completed 2.7.37. | ||