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).
List of modifications required for special lever carburetters.
| Identifier | ExFiles\Box 122\2\ scan0290 | |
| Date | 29th November 1937 | |
| -2- 29th. November 1937. The complete list to date of modifications required on the special lever carburetters is as follows:- E.61387 Choke torsion spring replaces P.17068. .113" floatchamber needle seating replaces .130". .156" diameter main feed hole replaces .106". Leather accelerator pump piston replaces brass one. Modification to idle system Rm.{William Robotham - Chief Engineer}467. Control levers modified to E.W.1098. The possible change of main metering jet from .063" to .061" previously mentioned, will be left in abeyance until further experience is gained with the final induction manifold. Yours faithfully, for ROLLS-ROYCE LTD. | ||