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).
Hard spots found on aluminium pistons for the 40/50 ATW chassis, recommending clearance around the gudgeon pin hole.
| Identifier | Morton\M3.6\ img043 | |
| Date | 21th June 1919 | |
| 1st PROD. ATW CHASSIS - HARD SPOTS ON PISTONS To H from EH. c. to BN.{W.O. Bentley / Mr Barrington} ORIGINAL EH1/LG21.6.19. 21st. June 1919. X.3400 RE ALUMINIUM PISTONS FOR 40/50 CHASSIS. The pistons which have been run on the first production chassis, shew that they have been bearing hard, locally, round the gudgeon pin hole. We think this is most probably due to a slight burr being made when driving in the gudgeon pins. We recommend that the pistons should be cleared away for 1/4" all round the gudgeon pin hole. EH. R.R. 235 B/200 (T) (S.F. 10B. 25-10-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2244 | ||