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).
Leak in the SS crankshaft's rear oil retainer and proposing a design alteration.
| Identifier | WestWitteringFiles\T\January1929-February1929\ Scan008 | |
| Date | 1st January 1929 | |
| FROM E.{Mr Elliott - Chief Engineer} Copy to BJ. " Hdon. (struck through) " HS.{Lord Ernest Hives - Chair} " EX. ORIGINAL. SECRET. SS.{S. Smith} CRANKSHAFT. REAR OIL RETAINER. X7010 (struck through) X7000 (struck through) The leak at the above point reported on the 10,000 miles test has not been experienced at Derby. Nevertheless we think a slight alteration to the oil retainer should be made, which we think should greatly improve its efficiency. The rear cover on the SS.{S. Smith} is split 1" below the crankshaft centre to match the crankcase, as in fig. 1. FIG 1 FIG 2 FIG 3 in fig. 2. The section through the crankshaft oil flinger is as in fig. 2. The shaft is made sufficiently clear of the bore of the cover to drop through the upper portion as in fig. 3. when removing shaft from top half of crankcase. The present Phantom has crankcase split on crank centre line and is arranged as in fig. 4. (on sheet 2.) It will be seen that here there are two oil retainers in series with an oil drain between. (1) | ||