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).
Modification to the Bentley S.U. carburetter float chamber cover to fix a flooding issue.
| Identifier | ExFiles\Box 103\5\ scan0196 | |
| Date | 22th May 1937 | |
| To Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} from RHC{R. H. Coverley - Production Engineer}/Cy. c.c. to Rm.{William Robotham - Chief Engineer} (crossed out) c.c. to RHC.{R. H. Coverley - Production Engineer} (crossed out) c.c. to Hs.{Lord Ernest Hives - Chair} (crossed out) Handwritten note: G.W.H. Depot sheet warning about this? Rm{William Robotham - Chief Engineer} COMPLAINTS FROM KINGSBURY. BENTLEY S.U. CARBURETTER. On looking into this complaint, we find that early in Bentley production when the flooding pipes were introduced, it was necessary to face the boss on the float chamber cover by .060 - .070, to remove the transverse slots. The facing operation thus made the section thickness very thin indeed, and on a 3½ Litre carburetter cover, just checked, this section is approximate .020 thick. The new carburetter covers have been built up inside the filter housing to counteract the effect of the facing, and no further trouble should be experienced on later carburetters. There is still, however, possibility of further failures of old type covers fitted prior to October 1936. RHC{R. H. Coverley - Production Engineer}/Cy. | ||