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).
Proposed modification to crankshaft lubrication by increasing the number of journal holes.
| Identifier | ExFiles\Box 14\2\ Scan153 | |
| Date | 9th February 1933 | |
| COPY. X/7010 Hs.{Lord Ernest Hives - Chair} c. RHC.{R. H. Coverley - Production Engineer} ---------------- BY.1/G.9.2.33. X4553 X4027 X5610 LUBRICATION OF CHASSIS CRANKSHAFTS. ------------------------------- I would suggest that before we put a modification through to increase the number of holes in the journals from 1 to 3 per journal that it would be advisable to try it on Peregrine and Bensport cranks in the first place. I am therefore holding up the alteration until you have checked that there is no chance of over-oiling occurring. Personally, I think that the quantity of oil thrown about will not materially increase, if it does, it might then mean that we could work with slightly less clearances, but with a very plentiful oil supply. BY.{R.W. Bailey - Chief Engineer} | ||