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).
The performance and issues with the propeller shaft, rear axle, and rear braking system.
| Identifier | ExFiles\Box 91\1\ scan0398 | |
| Date | 7th June 1935 guessed | |
| -13- Propellor Shaft. LOP.G. 82089. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 82087. The car had a period at 60 M.P.H. when first received. This was traced to the propellor shaft being out of balance to the extent of 1 oz. It was rectified as much as possible by washers. The vibration of the shaft obviously brought about the change speed lever vibration that we experienced. We noticed that on full rebound the shaft would foul the middle cross member. No loss of grease took place, and the mechanics joints remained in good condition. Rear Axle. LOP.G. 82089. N. Sch. 4654. The axle was a good standard for quietness. A slight oil leak developed from the pinion housing during the latter part of the mileage i.e. 7,000 miles, but no appreciable quantity of oil was lost. The axle was continually reported to be pattering and not able to hold on corners. This was subsequently rectified by altering the damping. The axle was given a special test on Mt. Ventoux, for strength, but it stood up to all it was given. Rear Braking. LOP.G. 83556. GL.{G. Linnett} 604. Lined with S. 5805 material. Hubs. LOP.G. 81902. N.Sch. 4702. Drums. 2 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 84005. The rear brakes have been good and efficient and have given no trouble. We experienced no sticking of the outside operating crank lever on its bearings as we had experienced on the last car. We did not dismantle the drums or hubs. The total adjustment required was - O.S.R. 3 full turns N.S.R. 2 1/2 full turns. The brakes were naturally affected by the condition of the rear damping, and were sometimes quite useless due to patter, and if applied on a wet road, would invariably make the car skid. This, however, was rectified considerably, when the damping had been seen to. | ||