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).
On aluminium debris in carburettor float chambers and a Stromberg jet body manufacturing defect.
| Identifier | ExFiles\Box 131\4\ scan0249 | |
| Date | 2nd June 1937 guessed | |
| To E.{Mr Elliott - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} c. to Rm.{William Robotham - Chief Engineer} c. to Mx.{John H Maddocks - Chief Proving Officer} 1113 Cricklewood. June 2nd. PH.III. CARBURETTERS. There is plenty of evidence coming forth finding fine hairs of aluminium in the float chambers of carburetters taken down for modifications. --------- A feature which should be taken up with Stromberg is the manufacturing process of the jet body and altered if possible. The body is turned and the jet seating formed, afterwards apparently the last operation is to mill the slot for the petrol aperture. In doing this a burr is left on the inside which can very easily affect the seating of the jet. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} <- SLOT MILLED | ||