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).
Issues and proposed modifications for rattling bonnet plates, oil leaks, and a Phantom II synchromesh gearbox.
| Identifier | ExFiles\Box 30\1\ Scan055 | |
| Date | 21th September 1934 guessed | |
| - 11 - Rattling of Bonnet Side Plates. GWH.{George W. Hancock - Head Chateauroux} stated that he had had trouble with bonnet side plates rattling and that the single piece of felt in the middle of the bonnet side strip is not sufficient to stop rattles. Design Department undertook to look into this matter. Spherical Bearing Equaliser Shafts. Oil drops from the ends of the equaliser shafts on to the silencer. Design Department will look into a modification to overcome this trouble. PHANTOM II. Second Speed Synchromesh Gearbox. Discussion ensued as to the methods to be adopted to overcome the failings which had occurred on the second speed synchro mesh gearbox on 28-EX during its French test. Various modifications are available to overcome the heaviness of operation etc. complained of by GWH.{George W. Hancock - Head Chateauroux} The modifications are as follows:- (1) It was agreed that 50° cams should be instructed instead of 45° on the second speed only. (2) Ball Bearings to N. Sch.4140 it was agreed should be instructed in place of bronze bushes on the second speed sliders. (3) In order to decrease any tendency towards binding in the change gear lever shaft bearing, it was agreed to instruct the spherical bearing to N. Sch.4173. (4) Air Vents - It was agreed to instruct the air vent to N. Sch.4170. | ||