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 procedure and results for electrical components removed from chassis 22.G.V.
| Identifier | ExFiles\Box 101\2\ scan0249 | |
| Date | 16th October 1936 | |
| - 5 - Distributor D.54392. Despatched to France 16.10.36. Condition good. E L E C T R I C A L. Test Procedure and Results. The following units were removed from chassis 22.G.V. for examination, after having run 31,600 miles, or more. Dynamo (Standard). The commutator was only slightly worn, but rather blackened. Brush wear appeared to be reasonable, being .100" on the positive and .150" on the negative. Both brushes were sluggish in their holders. Some corrosion had occurred on the negative brush gear, apparently due to petrol. Generally the condition of the machine was good, the insulation being sound apart from a temporary breakdown due to brush dust. The drive buffers were in excellent condition. Battery (Standard). This was run throughout the test without a lid.{A. J. Lidsey} It was found to be alright, but thickly covered on the top with road dirt, grit and pebbles. A lid{A. J. Lidsey} appears to be necessary. Distance run 41,000 miles. Starter Motor. (Standard). The drive on the motor was found to be sticking badly, due to gumming up, and the pinion bush binding slightly. The epicyclic gears were noisy, probably due to lack of oil. Three of the four brushes were stuck in their holders, partly due to oil, of which there was a large quantity inside the cover. Distributor. This unit was a standard one with a Peregrine type of head adapted to it, and a rotor made to suit. The general condition on examination was found to be satisfactory. The scheme as regards the operation of the larger safety gap was also considered satisfactory. Coils. One coil was of the Phantom III type, to D.75260, and the other standard. Both coils were found to be quite alright. Ballast Resistance (Standard). The condition of this was good. H.T. Cable and Tube. Apparently trouble was experienced with the standard cable fitted, and it was removed, and a cable of French manufacture used in its place. Electrically this cable was found to be condition. | ||