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).
The condition of vehicle components after road testing.
| Identifier | ExFiles\Box 4\9\ 09-page079 | |
| Date | 1st August 1925 | |
| EXPERIMENTAL REPORT -4- Exptl. No. REF : GHH2/Cmlé. 8. 25. Steering column and box. New stiffener support tube to Drgs. F.53250/1/2/3/4, otherwise to L.O.P. 50941. Steering column support on dash - all bolts O.K. Steering box supported on frame and engine - this is O.K. Slight slack in steering column thrust race taken up. There is a slight amount of slack in nut and worms. The steering at slow speeds is light, and no wobbles have developed. At high speeds, on moderate rough roads, there are slight wobbles. Also at times there are severe shocks on steering wheel. At high speeds on smooth roads, there are no wobbles, but car is inclined to wander. We think it would be advisable if slightly more friction would be applied to pivot pins. When pivot pins are well oiled, the steering is on the light side, and we consider shocks on steering wheel are increased. Front axle - G.52481 with modified brake operating gear to R.sch.2014/19. These are in good condition and have worked satisfactorily. Axle pivots G.52355/6 - these are O.K. Pivot pin, bush and friction washer to drgs. EX.663/4/5 - these are in a good condition. N.S. and O.S. brake drum shoes are in good condition. Slight amount of slack in cross steering tube ball and joints developed - these have been adjusted. Cross steering tube has fouled front engine guard. Front springs. These have been examined and are O.K. Front and rear anchorage of springs appear to be O.K. from feel and outside appearance. On rough roads we are continually hitting buffers. The buffer clearance, when car is normal, is N.S. 2" and O.S. 2". Front shock absorbers. These have functioned O.K. A are in a sound condition. Clutch. There has been a slight tendency to jagger when engaging. Also there has been occasionally a slight squeak when changing gears quickly on hills. We have had no case of any slipping. Gearbox. We have still got slight oil leaks from rear of housing covers. Nuts on rear flange G.51590 were found to be on slack side. These have been tightened up and have remained O.K. The leaks in question are very much less than previously. So far we have had no occasion to replenish oil in the gearbox. Gears are O.K., and there has been no tendency for any gear to jump out of gear. Gear change mechanism. This is quite O.K. contd +- | ||