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).
Request to machine inlet valve inserts for a Bentley high compression aluminium cylinder head for testing.
| Identifier | ExFiles\Box 88\4\ scan0118 | |
| Date | 10th October 1934 | |
| To RHC.{R. H. Coverley - Production Engineer} x252 Hs{Lord Ernest Hives - Chair}/Mths.{Reg Matthews}8/KW.10.10.34. High Compression Aluminium Cylinder Head (Bentley). ------------------------- Will you please machine the inlet valve inserts of this head to suit 1.500 dia. valves, the existing valves are 1.450 dia. If there are no new 1.500 dia. inlet valves available to fit this head we can use the valves out of the cast-iron head, which is similar in every respect to the aluminium head except for the inlet valve size. We should also like a set of inlet valve inserts preparing to suit 1.400 dia. valves, as we wish to test these immediately we finish the tests on the 1.500 dia. valves. Hs{Lord Ernest Hives - Chair}/Mths.{Reg Matthews} | ||