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 merits and implementation of the Bijur lubrication system across the car.
| Identifier | ExFiles\Box 26\5\ Scan155 | |
| Date | 4th June 1928 guessed | |
| 2 We are however (as the result of two years experience) absolutely convinced that having adopted the Bijur system in part it is essential to adapt it to all parts of the car as soon as possible. It is so exceedingly satisfactory and convenient that the more clumsy hand-lubrication of other parts is very likely to be forgotten entirely. (I think there is a difference in point of view here between the average English high regard for the Rolls-Royce chassis as a mechanism, and the average American owner's or chauffeur's consideration of the chassis as a necessary evil.) Our only important outstanding points are the sphere and torque tube and we desire to bring them into the general system at the earliest possible moment. You state that the delivery from the drip plugs at the end of the 3000 mile run was only 1/4 of the flow at the start. This seems to need further examination. The Bijur system delivers a fixed quantity of oil by the pump and only controls the relative distribution of this oil by the drip plugs. Therefore, barring leakage or addition of large drip plugs during the test, the statement above appears impossible. A blocked tank-filter (which could occur in such short mileage only with very dirty oil) would show itself in obvious lack of filling of the hand pump. Ey. has a number of notes from me covering the total discharge rate of the drip-plug system, plugs recommended by Bijur etc. I think we all feel here that the Bijur system is worth a very thorough trial, and that on MX{John H Maddocks - Chief Proving Officer}-2 we had a complete system including sphere and torque tube which was completely satisfactory and that all that was needed was improvement in details such as attachment of collector ring on universal joint, form of drip-plug and method of lubricating side steering tube. The lack of signs of neglect on Springfield Phantom cars in service, and the demand for Bijur systems from S. Ghost owners show conclusively the benefit of a complete system. STEERING. With regard to the lubrication of the ball in the bottom of the pendulum lever, you will recall that we were astonished that Bijur had apparently recommended carrying the oil through the serrated joint of the pendulum lever. (Continued) | ||