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).
Necessity of using studs instead of bolts for main bearings on the Bensport engine, affecting the 20/25 model.
| Identifier | ExFiles\Box 85\5\ scan0022 | |
| Date | 21th December 1932 | |
| To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} r 217 E.4/HP.21.12.32 X5010. re Bensport engine and larger crankshaft for 20/25. We find it necessary to use studs instead of bolts for securing the main bearings on Bensport on account of the petrol pump drive. This affects the main bearing caps for the larger crankshaft on 20/25 which were interchangeable with Bensport. We are dependent on Bensport for type testing the new bearing caps, etc. for the bigger crankshaft. E.{Mr Elliott - Chief Engineer} | ||