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).
Alteration notice for a B.40 2-litre engine connecting rod, cap, and large end bush.
| Identifier | ExFiles\Box 134\5\ scan0046 | |
| Date | 13th February 1940 | |
| TO RM.{William Robotham - Chief Engineer} File 106/RE. 1133 13-2-40 B.40 - 2 LITRE CONNECTING ROD - SEC.5030 RE 122 CONNECTING ROD. 123 " " CAP. RE 124 BUSH - LARGE END. ALTERATION. RE 122/3:- LARGE END BORE ALTERED FROM 1.896 DIA TO 1.892 DIA +1/2 RE 124:- THE BORE HAS BEEN ALTERED TO SUIT A 1.7485 TO 1.7490 DIA SHAFT, INSTEAD OF A 1.7525 TO 1.7530 DIA SHAFT. THE O/D DIA HAS BEEN ALTERED TO SUIT A 1.8920 TO 1.8925 DIA HOUSING, INSTEAD OF A 1.8960 TO 1.8965 DIA HOUSING. REASON. IN ORDER TO FOLLOW ON PREVIOUS PRACTICE OF A NOMINAL RUNNING FIT PIN DIA. A.O.D.- My | ||