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).
Instructions for shock absorber testing and modifying rear springs with clips and plates to address steering control issues.
| Identifier | Morton\M15\ img013 | |
| Date | 6th August 1919 | |
| R R.{Sir Henry Royce} 225 A (100 T) (S.F 846 6 8-19) G 2460 Contd. -2- The most important test there is on that car is Shock Absorber tests and the fact that you have had one failure makes it still more important that you should get them fitted up again and make sure they do not foul and then see whether they will stand up on the rough roads in France. It should not be much trouble for you to set up the shock absorber arm so that it would avoid catching the luggage carrier bracket. Make sure that the ball end joints have enough movement and that the tube does not catch in the neck of the ball. Please let us know immediately if there is any difficulty with the shock absorbers because the test is so important that it is worth while sending somebody else with new parts if they are required. We are also sending with Entwistle 4 clips and 2 plates. It has been suggested that the lack of control on the steering may be due to the split in the rear spring. The idea of these clips and plates is for you to clip up the rear springs so as to destroy the flexibility due to splitting. You should then try the car on the road and see whether you can tell any difference with these clips on or off. You will have to make very careful tests and try it several times because although you may gain advantage in one direction with the clips on, it may be worse in other respects. The first clips should be as close as possible to the roller on the other side of the spring, the next clip should be about 12" away. The plate is intended to go at the rear end of the spring and to be held on by the present safety bolts. (Contd.) | ||