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).
Modifications to the Phantom III water pump to suit E.CD.551.
| Identifier | ExFiles\Box 149a\1\ scan0221 | |
| Date | 20th April 1938 | |
| 22/MS. C. Rm.{William Robotham - Chief Engineer} 1269 DA.{Bernard Day - Chassis Design}1/G.20.4.38. SWDL{Len H. Swindell} Std. WnRm/SDJ PHANTOM 111 - MODIFIED WATER PUMP TO SUIT E.CD.551. Further to E.CD.551 we send herewith E.CD.623 Water Pump Running at 1 1/2 times engine speed - Ph.lll. This design gives all the remaining information for the increased speed water pump, which is driven in tandem with the dynamo as shown on E.CD.551. The water return pipe from carburetter hot-spot is slightly altered to suit the new position of pump. The pump intake bend is set over to match up with the existing bottom water pipe from radiator, and pump volute has been swung round to suit the new position of the water inlet to cylinders. Will you please detail and instruct for the experiment. The crankcase modifications are already instructed. DA.{Bernard Day - Chassis Design} | ||