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).
Test report on an oil level indicator, thermometer, ignition wires, sparking plugs and terminals.
| Identifier | ExFiles\Box 91\1\ scan0393 | |
| Date | 14th June 1936 guessed | |
| -8- Oil Level Indicator. 10P.E.85060 Lec.4352. Gave no trouble and did not stick on any occasion. Rubber Mounted Thermometer. Rubber was found to be in good condition, and the whole unit had stood up well during the test. Ignition Distributor Wires. 10P.D.75167.E.85951. We have had considerable trouble from misfiring on 'A' side ignition. This has been pronounced up to 30 M.P.H. but we have had no trouble over that speed. We largely blame the bad condition of the high tension ignition wires, probably causing short-circuiting to earth under heavy loading. This set of wires had already completed a 10,000 miles test prior to the one in question. We would point out that although misfiring occurred on 'A' side, no trouble was experienced using A & B ignitions, and probably in a customer's hand would give no trouble. Sparking Plugs - Lodge X.523. Gave no trouble until about 8,500 miles had been completed. Loud popping and banging would occur at speed. The plugs were removed and re-set to .025", which immediately cured the trouble. Sparking Plug Terminals. Gave every satisfaction and were easy to remove and manipulate. | ||