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).
Gasket design, steering shock elimination, and induction system porting.
| Identifier | ExFiles\Box 173\4\ img096 | |
| Date | 6th December 1935 | |
| -2- He/Rm.{William Robotham - Chief Engineer}9/KW.6.12.35. (3) They have cured all gasket troubles by a gasket only touching over a very small area, and hence having high unit pressure, made thus :- .025 COPPER .015 THICK & .015 PROUD ON TOP 4 SHEETS AG .010 THICK Two cylinders or a cylinder and stud need only be .150" apart. I have a sample gasket. (4) They eliminated steering shocks by the rubber shackle at the rear end of the front spring on the driver's side, and moving the steering box along the frame to give the best results, though the geometry on the drawing board shows quarrelling. The position of the ball at the front of the side steering tube should be at the position of no movement both vertically and longitudinally under braking reaction to prevent diving. (5) Four port induction systems do not run slow so well as 6. In either case better results are obtained if the end valves are exhaust and not inlets. Good pipes are then - 6 PORT 4 PORT Viewed from the end the branches are horizontal or slightly down hill. Square section pipe. | ||