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).
Gasket water leaks on the Phantom III and proposals for a new gasket and cam balance/flywheel redesign.
| Identifier | ExFiles\Box 113\5\ scan0186 | |
| Date | 28th January 1937 guessed | |
| -5- (b) Joint Face. In the previous report, we stated that the 'Corrujoint' gasket only partially cures the water leaks. Experience on Phantom III. in production is proving that the 'Corrujoint' can give a lot of trouble even with a head having a complete floor. In view of this, we are going to try a C & A.{Mr Adams} gasket. We have never tried one of these washers, the original one being solid copper with this open type of head. The gasket we are proposing to use will be made to the form of the cylinder block face, so that the water comes in direct contact with the copper surface of the gasket. In this way we may be able to use the C. & A.{Mr Adams} Gasket on a high power engine where we were unable to do so on the T.T. engine. On the cylinder head we are using for these tests, there is no thermometer pocket. One will be required on the final design. (c) Cam Balance and Flywheel. Assuming that a balancing cam is going to be an essential part of this engine, we suggest that if and when it is decided that this engine is worth completely re-designing, its position should be between the driving sprocket and the camshaft. The flywheel should be adopted provisionally. The use of a modified camshaft, as mentioned earlier in this report, will, in all probability, alter the oscillating characteristics of the chain. We can therefore hope that the chain will not need so many devises to damp out oscillation. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||