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 page detailing issues with engine vibration, lubrication, cooling, and bodywork.
| Identifier | Morton\M2.6\ img047 | |
| Date | 22th September 1925 guessed | |
| -8- Before, however, finally approving this engine, and, - as it were, setting it up as a model, I consider that the servo rattles should be eliminated, a new quiet train of gears fitted, and the engine decarbonised, so that the general behaviour of the engine and its degree of freedom from vibration can be properly decided. (7) LUBRICATION. This appeared to be quite satisfactory, but oil consumption was heavy. On examination at 8700 miles, cylinders Nos. 1 and 6 appeared to be rather over-oiling; at 9700 miles, the oil pressure began to be rather erratic, although there was plenty of oil in the base chamber. The oil pressure relief valve was taken out and cleaned, after which everything was satisfactory. It is understood that this operation had to be performed on several other occasions during the course of the test. The screw caps for the oiling unions throughout the chassis do not appear to be very satisfactory. They are difficult to remove, and on some occasions are liable to unscrew of themselves and become lost on the road. Several were lost during the last 1250 miles of running. It is considered that some form of cap is desirable over the oiling unions. (8) COOLING. There was no real opportunity to discover whether the car was liable to boil under extreme conditions, as these were not encountered. At no time was it necessary to keep the radiator shutters more than one-third open on the control quadrant. Whilst in the Alps and climbing, the weather was distinctly cool. (9) BODYWORK. The body is somewhat shaken, and most of the joints are loose. There are several squeaks from most joints which it was almost impossible to get rid of, but some improvement was made by squirting oil on to the joints, which gradually got worked in. The right half top glass of the windscreen fell out of the frame and had to be held in | ||