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).
Instruction to replace existing pistons (EB.3916) with a new set (P.482) on an 8 cylinder Bentley B.80 No.4 unit.
| Identifier | ExFiles\Box 124\2\ scan0025 | |
| Date | 24th January 1940 | |
| 1044 To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}10/JH.24.1.40. B.80 No.4 Unit. (8 cyl. Bentley). Further to our development on the above unit. Will you please remove the existing pistons EB.3916 and fit the new set supplied part number P.482. The only difference between these two pistons is that the crown of the latter is flush with the top of the cylinder bore, while the former are .030 below the top of the bore. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||