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 coachwork of chassis 7-EX, detailing issues with rigidity, scuttle jellying, and suggestions for improvement.
| Identifier | ExFiles\Box 71\1\ scan0220 | |
| Date | 26th June 1926 | |
| TO EHS. FROM DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} C. to HS.{Lord Ernest Hives - Chair} REPORT ON COACHWORK ON 7-EX. This chassis is fitted with a Barker 4 door, 6 light, all-weather, short chassis, 'D' steering, and has completed 9,200 miles mainly in the south of France in Mr. Royce's service. The writer, together with Mr. Mundy of Barkers', carried out the following examination of the car on Thursday and Friday June 17. and 18. Generally speaking the coachwork proper, on which the head stands, appeared to have insufficient rigidity, causing the head to rattle badly, while the doors were difficult to close. The items will be dealt with in detail. (1) SCUTTLE JELLYING It appeared that the small pieces of bent iron screwed to the face of the scuttle at the corners opposite the bonnet side hinge, were inadequate for their work, and had broken, as on 10.G.111. (See sketch 1). In sketch (2) we shew a sheet metal stiffener screwed to the face of the scuttle which we believe will prevent it parallelogramming. On removing the valances we found considerable transverse movement on the rubber of the subframe support from 3 causes - (a) The rubber was too soft and pliable. That that we originally instructed was to be similar to the hardest type used in the American rubber shackles. (b) The rubber should be forced into the pots and not a loose fit. (c) Apparently the spring load holding the body down was too light. On tightening up these springs and setting up the rubber the movement was considerably reduced. We suggest that when Barkers' replace this body, blocks of aluminium fitted to the pots should replace the rubber, so that any relative movement between the dash and the scuttle must then be either chassis distorsion or scuttle parallelogramming. | ||