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).
Test report on the performance of the radiator, propeller shaft, and steering components.
| Identifier | ExFiles\Box 11\5\ 05-page166 | |
| Date | 5th July 1934 guessed | |
| -- 4 -- RADIATOR LOP. E.81047 RADIATOR SHUTTERS LEG. 3763. 70 M/M.{Mr Moon / Mr Moore} HARRISON VES BONDED MATRIX. The radiator has been efficient, the test being severe during the very hot weather experienced. Tests taken to prove whether a lesser area would be efficient, would, from the results, 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 miles made it quite steady. No water leaks have developed and no trouble with the anchorage. Radiator shutters vibrate and could be heard in the driving seat. The operation of the shutters has been satisfactory. PROPELLOR SHAFT INCORPORATING NEEDLE BEARINGS IN THE MECHANICS JOINTS G.81227 - GL.{G. Linnett}702 RR. sch. 473. The propellor shaft mechanics joints have not fouled during the mileage, and no perceivable wear in the bearings has taken place. A slight loss of grease has occured from the faces of the joints. STEERING COLUMN AND BOX. NS.{Norman Scott}3763/3 - 3768. LEG.3904. The steering was not good with the front rubber mounting of the engine. There were severe oscillations of the steering wheel and joggles were frequent on any but first class roads. It was necessary to pay more attention to the front axle controls, to prevent the front of the car tramping when braking at speed. The fitting of the standard front engine mounting, tieing the engine to the frame, reduced the joggles and oscillations. It is now selective and stable. There has been rather a bad leak of oil from the bottom plate of the steering box, 1.375 pints having been used in replenishing. The friction on the steering column we have found to be advantageous in reducing joggles. It has to be carefully adjusted or bad sticking and unselectiveness is the result. The friction in the front pivots appears to have lost its value. There has not been the peculiar wear on the last pair of front tyres fitted. CROSS AND SIDE STEERING TUBES. LOP. G.77482 LOP. F.79861. The friction loads of the cross and side steering tubes has remained fairly consistent, the loads being at 5,000 miles (Side steering tube 3 lbs - cross steering tube 10 lbs.) At 10,000 miles (Side steering tube 3 lbs - cross steering tube 10 lbs.) There has been no trouble with the lubrication of the ball joints. The side steering tube is still the same set up of the springs, as on the previous test. | ||