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 damage caused to engine spring cups due to incorrect timing methods and a recommendation for the correct procedure.
| Identifier | ExFiles\Box 129\1\ scan0112 | |
| Date | 23th January 1937 | |
| Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} from Rm{William Robotham - Chief Engineer}/Smth. 1110 Rm{William Robotham - Chief Engineer}/Smth2/R.23.1.37. TIMING ENGINES. Considerable damage was done to the spring cups of 35-EX by the Tester who timed the engine. He had evidently turned the engine by barring round the clutch. Several of the cups were bent, and one so badly that the spring had tightened up in it. We have noticed the same tendency on the B. & B. clutches fitted to 25/30 and Bentley chassis. Apparently, the Test Dept. always time their engines by jacking up the rear wheels and turning them with the car in gear. This procedure should be followed in the Experimental Garage. Rm{William Robotham - Chief Engineer}/Smth. | ||