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 a distributor, detailing wear, corrosion, and changes in spring load and platinum point gap.
| Identifier | ExFiles\Box 35\6\ scan 100 | |
| Date | 29th January 1923 guessed | |
| Contd. (2) Part of Dist. Before test. After test. Remarks. Spring 1.1 lbs. .78 lb. Load on points. Plat. point .021" .009" For .5 make gap. ratio. During the run the metal work inside the distributor became pitted with rust especially the cam; probably because it was not nickel covered. The points in the distributor head also appear to be slightly corroded: It will be noticed that the spring has weakened, also that in wearing, the shape of the contact surface of the rubbing block has so altered, in relation to the cam, that the maximum gap for a .5 make ratio is only .009". CAP. | ||