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).
Performance and issues with various vehicle components including the exhaust, clutch and steering.
| Identifier | WestWitteringFiles\M\2April1925-June1925\ Scan94 | |
| Date | 25th September 1924 | |
| R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF: GHM12/Crn20:15.25. almost absent. This, as previously reported, is due to the thin aluminium not being suitable for this job, as it is torn open by stones, etc. It is not a case of insufficient support of bands, but the material itself. Rear silencer is as previously reported. Silencer brackets are slightly bent, but they are O.K. otherwise. EXHAUST CUT-OUT. This has stuck open once, after using. The spring appears to have lost some of its tension, but this is the first occasion on which we have had to close it forcibly. It has functioned O.K. since. EXHAUST SNOUT. This is quite satisfactory, but this has been knocked in in one or two places by stones. ENGINE FABRIC COUPLING. This coupling, after 10,000 miles, shews three slight bluges. The fabric itself is quite sound, and I should say quite a satisfactory job. There are no signs of the rivets giving way. PEDALS. To Sch. L.O.P. F.72359. These bearings are in a good condition. CLUTCH. This is working quite satisfactorily. We have had no further slipping. It is smooth in action and free from jaggers. A better clutch stop should be designed, as a sluggish stopping when hot is not what one would call satisfactory. We have tried various settings of clutch stop, to overcome this trouble, but have not been successful. STEERING BOX SUSPENSION. Modified steering, including rocking shaft, etc: to L.O.P. F.72863 - this is quite O.K. We loose a very slight amount of oil out of steering box since, at your request, we changed from thin to thick oil. We do say, definitely, that the steering is still heavy. At high speeds we have noticed that the wobbles have decreased since fitting the new front road springs. The springs appear to have a lot to do with these wobbles - more so than changing a front wheel, which was out of balance. This is the conclusion that we have come to. contd :- | ||