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).
Cover note for a report on a silent tappet adjustment and the satisfactory performance of the valve gear during petrol starvation tests.
| Identifier | ExFiles\Box 91\2\ scan0311 | |
| Date | 2nd September 1937 | |
| S009 By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} c. Da.{Bernard Day - Chassis Design} c. MX.{John H Maddocks - Chief Proving Officer} Rm{William Robotham - Chief Engineer}7/R.2.9.37. Attached is a copy of a report from Waller indicating an adjustment that had to be made to the silent tappets during the 15,000 miles' running. Since during investigation of petrol starvation the car was running for long periods on weak mixtures, and this treatment caused the sparking plugs to burn up in an astonishing manner, we consider that the valve gear gave extremely satisfactory results. Rm.{William Robotham - Chief Engineer} | ||