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 use of taper bolts for securing the flywheel to the crankshaft on the EAC clutch.
| Identifier | ExFiles\Box 66\4\ scan0051 | |
| Date | 1st July 1926 | |
| X8300 TO BY.{R.W. Bailey - Chief Engineer} FROM AJS. Copy to - Hs.{Lord Ernest Hives - Chair} " - Ws. " - Hs{Lord Ernest Hives - Chair}/RHC.{R. H. Coverley - Production Engineer} AJS1/M1.7.26. RE. EAC. CLUTCH - X.8010. X8300 We note on arrangement drawing G.73748., that taper bolts are shewn for securing the flywheel, to the crankshaft flange. We do not require taper bolts in this position as we think they are entirely unnecessary, and from the point of view of assembling the clutch, sometime ago WS. and HS{Lord Ernest Hives - Chair}/RHC.{R. H. Coverley - Production Engineer} wrote reports on this matter which led us to believe that the taper bolts were the cause of the clutch operating sleeve spigot becoming out of truth and requiring grinding with the fly-wheel bolted into position on the Crankshaft, which practice we strongly depreciate. AJS. | ||