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).
Letter addressing issues with steering, front springs, and front pivots, and advising on replacement parts.
| Identifier | ExFiles\Box 96\1\ scan0101 | |
| Date | 30th April 1937 guessed | |
| -2- cross steering tube from the car, holding the shank of the ball pin in question in the vice, and pulling with a spring balance attached to the opposite end of the tube. Neither of the two ball pads G.83415 or G.84934 should rotate in the housing. If either does rotate, the friction load becomes less. The lower pad G.83415 is intended to be a tight press fit in the housing. If it is found to have been rotating this can be prevented by sweating it into position. The upper pad G.84934 is split so that it spreads outwards to grip the housing. Shims G.84936 are available for adjusting the load of the springs to give the required friction. The parts shown on the attached sketch replace the solid contact piece G.83414 originally used. We are sending you the necessary new parts. Front Springs. From our records and from the buffer clearance you quote it appears that the front springs are rather low for poundage. We are therefore sending you a set of higher poundage springs and the necessary compression tool for doing the changeover. Our Depot Sheet Hd.{Mr Hayward/Mr Huddy}339 deals with changing springs. We have never had a case where the springs have collapsed and would give the reason for the buffer clearance being rather low as due to under-estimation of the body weight. Front Pivots We do not think there is any question of wear taking place in the pivots, but as the top pivot bearing is a combined thrust and journal bearing there is no location for the top of the pivot when the wheel is off the ground. It is highly improbable that you will be able to feel any slackness in the pivots, when the car is resting on its wheels. We hope this information and the new parts will make a highly satisfactory car. We shall be very pleased to let you have any further information that may be desirable. Yours faithfully, Attached. 1 Governor unit drawing F.87072. One sketch of cross-steering ball ends. FOR ROLLS-ROYCE LTD. | ||