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).
Ignition system testing, analysing misfiring issues and comparing results with a Delco-Remy system.
| Identifier | WestWitteringFiles\Q\December1926-January1927\ 73 | |
| Date | 23th December 1926 guessed | |
| -7- Contd. previous standard RR. ignition conditions, one has completed its 10,000 miles on 9-GIII and the other has completed 8,000 miles on 5-EX, being removed when the car was sold. Trimming was necessary in both cases after about 7,000 miles. No complaint of misfiring was registered. The results of these two samples (not sent) are approx. similar tp No.2C sent. The general result of this other series of test (on the car) will be made the subject of a separate report. There are two other samples on the string not referred to in the details. One is labelled O and shews distinctly the typical effect of the presence of oil on the platinum points. This has been taken from one of the expl. test engines, in which case the inside of the contact breaker chamber was definitely oily. This particular effect is a known and distinct one. A second one, labelled R, is from an additional test with our own contact breaker, distributor and condenser, but otherwise with the Delco-Remy ignition system. The result is not really good. It appears from the above results, that there is no particular feature about the Delco-Remy ignition system itself, apart from the contact breaker, which is the solution of the difficulty, i.e. the matter does not seem to be a question principally at any rate, of the electrical characteristics of the system. EFC. | ||