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).
Valve spring failures during testing on a test rig.
| Identifier | ExFiles\Box 80\3\ scan0223 | |
| Date | 7th November 1912 | |
| R.R. 238 (24 B) (LL. 255. 10.6.12) E.P. 1997. ROLLS-ROYCE LIMITED. INSTRUCTIONS. 7-11-12 To: Mr Barrington Order No. Customer's No. File Report on Valve Springs We have had two more valve springs break on test rig. (1.) CV^02 inlet. - run 2400 miles with standard valves & washers (These overload the spring). and 1200 miles with standard valves & special washers to set spring normal. (2) Run 9600 miles special valves & washers. We have not yet received the polished springs. Signed: [Signature] This Sheet must be filed on completion of the work. | ||