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).
Page detailing proposed modifications for oil fittings and the use of standard ball bearings.
| Identifier | WestWitteringFiles\V\March1931-September1931\ Scan116 | |
| Date | 14th April 1931 guessed | |
| (3) One or two other small modifications we discussed will be introduced when the scheme comes up for revision. OIL FITTINGS. We propose for the oil filler a simple large cap in the valve rocker cover on top of the engine, this cap to have a cylindrical split extension entering a parallel hole in the rocker to retain it in position. SPECIAL BALL BEARINGS. There is no necessity for using special ball bearings on Japan 3. The ball bearings remaining are few in number and will be taken from the standard list. E.{Mr Elliott - Chief Engineer} | ||