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).
Alterations to the throttle control and return spring for the B.80 engine when fitting a new induction pipe.
| Identifier | ExFiles\Box 124\1\ scan0259 | |
| Date | 1st September 1939 | |
| BY/NS{Norman Scott} c. Rm{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/CTS{C. Trot Salt - Carburation} c. Rm{William Robotham - Chief Engineer}/PD 1044 DA.{Bernard Day - Chassis Design}1/N.1.9.39. B.80 - Throttle Control and Return Spring for use with Induction Pipes E.CD.1462. ------------------------------------------ Please receive herewith: A.{Mr Adams} Rodgers [handwritten] E.CD.1513 - Throttle Control & Return Spring for E.CD.1462 - B.80. When the new induction pipe to E.CD.1462 is used on the B.80 engine, the position of the carburetter is lowered by .500" and in order to keep the correct geometry of the controls to allow for engine oscillation, the control bellcrank lever on the dashboard is also lowered .500". A new position for throttle closing spring anchorage is necessary and this calls for a boss to be added on the new induction pipe, also the pin for the spring on the throttle lever is moved a little. These alterations only apply when the new induction pipe is fitted to engine in Cresta, Comet, Silver Dawn 80, or Silver Phantom cars, the remainder of the controls are to existing designs E.CD.1376/7, E.CD.1387 and E.CD.1514. Will you please instruct experimentally. DA.{Bernard Day - Chassis Design} | ||