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).
Finishing process for rationalised cast iron engine units.
| Identifier | ExFiles\Box 124\2\ scan0023 | |
| Date | 23th January 1940 | |
| 1044 To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} c. to Jnr.{Charles L. Jenner} Rm.{William Robotham - Chief Engineer}11/JH.23.1.40. FINISH OF RATIONALISED CAST IRON ENGINE UNITS. So far we have not taken any particular care to finish off our experimental units anything like the manner we should expect them to be finished on production. It is necessary, however, to establish a satisfactory finish and we should like to endeavour to do this on number six unit. This means stove enamelling the block and cylinder head. The metal parts should be dull nickel plated as on Phantom III. The mains difference between Bentley and Rolls-Royce units will be the name on the rocker cover. We are producing a drawing showing how we wish the two rocker covers to be treated. Ultimately the Bentley may have a different induction system. Rm.{William Robotham - Chief Engineer} | ||