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).
Tests and modifications to a crankcase breather, radiator, propeller shaft, and steering column.
| Identifier | ExFiles\Box 11\5\ 05-page212 | |
| Date | 7th March 1935 | |
| -3- CRANKCASE BREATHER. We have made the breather in the rocker cover free from pulling oil into the carburetter. The intake to the carburetter was free from any sign of oil when taken apart and examined. The D.O. have received the modification. RADIATOR LGP. E.81047. RADIATOR SHUTTERS LEC.3763. TO M/M.{Mr Moon / Mr Moore} HARRISON VEE BONDED MATRIX. The radiator has been efficient, the test being severe during the very hot weather experienced. Tests were taken to prove whether a lesser area would be efficient, but the results indicated that it would be too near the margin for extreme conditions and various conditions of driving. The radiator was not steady during the first part of the test. The alteration to the engine mounting towards the latter mileage made it quite steady. No water leaks developed and trouble was not experienced with the anchorage. Radiator shutters vibrated and could be heard in the driving seat. The operation of the shutters remained satisfactory. PROPELLOR SHAFT INCORPORATING NEEDLE BEARINGS IN THE MECHANICS JOINTS G/E1227 - CL.70a. RR.Sch.473. The propellor shaft mechanics joints have not fouled during the mileage. Slight wear in the bearings has taken place. A slight loss of grease has occurred from the faces of the joints. STEERING COLUMN & BOX. N.Sch.3762/S/3768. ING.3904. With the alteration to the engine mounting the steering was made standard with regard to stability and shocks. It was better than standard with regard to joggles with the added friction in the column, which could be adjusted to suit the conditions of roads; for instance, when the car was taken to Belgium, increasing the friction load loosened the joggles over the pave but did not cure the rapid shocks. Too much friction prevented the self-centering effect. The scheme would be liable to abuse, as too much load could be applied which would cause heavy steering. As reported previously, the friction in the pivots has lost its value. | ||