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).
Correct friction setting for a Bentley crankshaft spring drive.
| Identifier | ExFiles\Box 85\5\ scan0037 | |
| Date | 25th May 1933 | |
| X 217 To By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}2/KT.25.5.33. BENTLEY CRANKSHAFT SPRING DRIVE. With regard to BY/SS{S. Smith}'s query, asking what friction setting this should have, we think 16 lbs + 1 is correct for this engine. We do not want any one of them setting less than 15 lbs. because of the danger of running into the half crankshaft period. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||