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).
Complaints of faulty starting due to a new, excessively strong choke torsion spring on a 25/30 HP Stromberg carburetter.
| Identifier | ExFiles\Box 122\2\ scan0330 | |
| Date | 24th February 1938 | |
| [Handwritten] Radcliffe. what do you say about this? To By.. [crossed out] 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} [crossed out] c. to LA.{L. A. Archer} [crossed out] [Handwritten] 1033 Re: 25/30 HP. Stromberg Carburetter - Choke Torsion Spring E.61387. Cricklewood are complaining that the new choke torsion spring is too strong, in so much that the valve will not open, and is causing flooding when starting. They are having recurrent complaints of faulty starting after having fitted the above spring, and have had to refit the old spring. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} [Handwritten] Alternative is to fit weaker spring to valve in choke butterfly. Similar to D.51745. This valve is not in action with the old choke spring. Cold starting tests were carried out at 8°F.{Mr Friese} [Handwritten] Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||