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).
Retrospective modification to the 20/25 HP carburetter float-chamber balance.
| Identifier | ExFiles\Box 102\1\ scan0258 | |
| Date | 8th February 1935 | |
| Rm{William Robotham - Chief Engineer} x5080 To WOR.{Arthur Wormald - General Works Manager} from E.{Mr Elliott - Chief Engineer} E.5/HP.8.2.35. c. Hs.{Lord Ernest Hives - Chair} Ey. Mx.{John H Maddocks - Chief Proving Officer} 20/25 HP. Carburetter. Floatchamber Balance LeC.4292. Referring to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}28/KW/7.2.35 and Mx.{John H Maddocks - Chief Proving Officer}20/T.6.2.35, the point we have now to decide is to what degree if any this modification shown on LeC.4292 should be made retrospective. This modification is easily applicable to an existing carburetter which involves fitting a new floatchamber lid{A. J. Lidsey}, a balance pipe and a new plug into the air inlet. At the same time the balance hole in the existing floatchamber must be plugged up and the hole in the air inlet must be tapped. Also a new carburetter needle XC.2. must be fitted in place of XB.8. E.{Mr Elliott - Chief Engineer} | ||