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).
Improvements and solutions for issues identified on the Paris Trials Car 33-EX, also known as Spectre.
| Identifier | ExFiles\Box 27a\1\ Scan300 | |
| Date | 26th August 1935 | |
| [Handwritten]: BARDY (1245) To Mx.{John H Maddocks - Chief Proving Officer} from E.{Mr Elliott - Chief Engineer} E.7/HP.26.8.35. c. Wcr. Hs.{Lord Ernest Hives - Chair} By.{R.W. Bailey - Chief Engineer} Sft.{Mr Swift} RHC.{R. H. Coverley - Production Engineer} SECRET. Paris Trials Car - 33-EX. - SpectreCodename for Phantom III. Referring to your memo Mx.{John H Maddocks - Chief Proving Officer}12/T.26.8.35, the following schemes give particulars of the improvements which should be fitted, dealing with the points raised:- (1) Engine. Piston knocks when starting up from cold. Fit split pistons LeC. 4617 (2) Overoiling. Fit white metal big-ends to LeC. 4624 but without circumferential grooves. (3) Carburetters flooding. Fit filter to LeC. 4594. (4) Clutch spigot bearing noise. Fit oilite bush to N.Sch. 4578. (5) Valve Push Rods. Fit duralumin rods to LeC. 4626. (6) Gearbox. 1st motion shaft bearing noisy. (7) Side shaft gear noisy when hot. Experiments are in progress dealing with gearbox noise. (8) All synchro mesh gears crash on engaging. Hitherto our second speed synchromesh has been satisfactory, while third and fourth have shown a tendency to crash. Instructions are issued for a steeper cam angle on the synchro sleeve to overcome the latter. See N. Sch. 4605. | ||