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).
Casting defects and dimensional inconsistencies for a lower half crankcase.
| Identifier | ExFiles\Box 146\4\ scan0078 | |
| Date | 3rd April 1940 | |
| Mr. Walker. Mr. Edwards. 116 3.4.40. Crankcase - lower half - RE.108. A/C. (1) The casting appears to have shrunk too much lengthways, it is now - .040 on the overall length. (2) The core is .075 to .100 small lengthways this is causing surplus metal inside the core. (3) Two of the 3.2R bosses shewn 2.750 from the vertical centre line are - 040 where they touch the outside profile. Sectional thickness varies from .175 to .240. H.B.. | ||