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).
The investigation of a knocking noise in a modernised Lucas ER6 magneto.
| Identifier | ExFiles\Box 40\2\ Scan247 | |
| Date | 30th March 1928 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.C. Order No. WC94 Customer's No. X8793 Lucas ERG magneto No 54 B. with f.s.d. This magneto is one of the pair recently modernised and returned to us for test. It was first handed to the Test dept for noise test and they returned it to us after running it a small mileage with the report that a bad knock had developed. We dismantled the machine but could find no evidence of fouling so it was reassembled and tested on the bench for an analysis of the knock. noise. With everything quiet we confirmed the knock, so the bakelite distributor gear wheel was removed which caused Signed: (contd) This Sheet must be filed on completion of the work. | ||