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).
Camshaft EB.4105, valve lift specifications, and related drawings PD.281 and PD.223.
| Identifier | ExFiles\Box 158\5\ scan0063 | |
| Date | 15th March 1940 | |
| -2- Jnr.{Charles L. Jenner}7/JH.15.3.40. I was surprised when you mentioned camshaft EB.4105, because the inlet cams of that shaft are of high lift and long duration giving a valve lift of .437. It was my impression, that we had abandoned the high lift many months ago. However, the valve lift diagram for this shaft is number PD.281. Most of our inlet cams are for a valve lift of .4 and are made to diagram PD.223. Both of the drawings PD.281 and PD.223 are at the Squash Court, and it will speed the job if you would please send someone to have them blue printed. I think this covers all the information you require. Jnr.{Charles L. Jenner} | ||