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).
From E. to By. discussing Mr. Royce's proposals for addressing oil leaks on Goshawk valve gear covers.
| Identifier | WestWitteringFiles\I\May1922\ Scan82 | |
| Date | 23th May 1922 | |
| To By.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to PJ. [Strikethrough] c. to Hor. [Strikethrough] c. to Hs.{Lord Ernest Hives - Chair} [Checkmark] c. to Ht. [Strikethrough] 6 ORIGINAL HS{Lord Ernest Hives - Chair} RECEIVED MAY 24 1922 _2 E2/M23.5.22. X4220 X3108 GOSHAWK. OIL LEAK FROM VALVE GEAR COVERS LeC 1569. With reference to the above, Mr. Royce has [Strikethrough] not entirely in favour of making ventilating passages between the crankcase and the valve gear chambers, as he does not think this may have much bearing on the question of oil leaks. On the contrary he thinks it would be permissible to fit an outside ventilator to the top valve gear cover, but he would like experiments made as asked for in the original memo. firstly, to determine whether a large hole drilled in the top cover is of any benefit, secondly, to find out by running an engine with a sectioned cover in what manner the oil is thrown on to the inside of the cover so as to cause it to leak out. If we do use ventilating passages over the camshaft bearing dowel tubes Mr. Royce would like them to be of a somewhat different form to LeC 1569. The idea is to still use the cylinder block to hold the dowel tubes down, and to drive a short piece of small diameter tubing into the block immediately above, each dowel tube to act as a passage way for the gas and to keep back the oil. (see sketch.) E.{Mr Elliott - Chief Engineer} | ||