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).
The correct gap for the Bensport servo star springs.
| Identifier | ExFiles\Box 87\5\ scan0012 | |
| Date | 5th July 1933 | |
| X241 To By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}11/KT.5.7.33. BENSPORT SERVO. We suggest that the gap in the servo star springs, when the servo is correctly adjusted, should not exceed .040". RHC.{R. H. Coverley - Production Engineer} has found no difficulty in making for us star springs to any set up. We do not think, therefore, that adjusting washers are required. A greater gap than .040" is not necessary and wastes pedal movement. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||