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).
Specification revision for Bentley 60 Unit No. 4 on chassis 3-B-50, comparing previous and revised components.
| Identifier | ExFiles\Box 111\3\ scan0158 | |
| Date | 20th May 1941 | |
| To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/CP. c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} c. Rm{William Robotham - Chief Engineer}/OTS. 800B Rm{William Robotham - Chief Engineer}/CP.7/LH.{Mr Haworth}20.5.41. Bentley 60. Unit No. 4. Bentley Chassis 3-B-50. Specification of the above unit is revised as follows :- Work carried out at Clan 14.5.41. Previous Specification Cylinder Head LOP.EB.4007 C/E to LOP. EB.3844 Cyl head 6.45 comp COMP 125 C.C's. EB.4129 Outlet Connection removed & fitted to B-60-No.3. Valves & Fittings LOP.EB.3996 Ph 111 Type Double Valve Spring. EB.3256 Top washers. E.88709 " " EB.3990 Bottom washers. removed & fitted to B.60-No.3. Inlet Pipes LOP.EB.4725 EB.4995 Inlet Pipe 1.625 bore Cast in starter passage. removed & fitted to B.60-No.3. Revised Specification Cylinder Head LOP. C/E to above LOP. ex Bentley 60-No.3 Unit incorporating EB.3844 Cyl head 6-4-1 comp. COMP Valves & fittings LOP.EB.3996. The following parts fitted ex B-60-No.3. EB.3256 Top,washers. E.88709 " " EB.3990 Bottom washers. removed & fitted to B.60-No.3. Inlet Pipe EB.4725. The following part fitted ex B.60-No.3 EB.4123 Inlet Pipe 1.625 bore. Rm{William Robotham - Chief Engineer}/CP. | ||