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).
List of engineering queries and issues regarding shock absorbers, tyre noise, exhaust, manifolds, springs, and chassis.
| Identifier | ExFiles\Box 174\3\ img099 | |
| Date | 14th March 1932 | |
| (5) Brake, shock absorber knocks. What is now the position of front dampers on production. Are we still holding valve off its seat. Handwritten: Soften down front of 32EX What about bushes on rear dampers in view of fact that h.l.l frame is more sensitive to it? (6) Tyre Noise. Compare Dunlop & Goodyear supplied by Dunlop Co. for groan tests. Reports from States indicate that filling frame with wood reduces noise. What can we do to confer this exp. Rubber mounting of front end of T.I. impossible, confirm whether front mounting solid makes any difference to tyre noise. This could be done on 32-EX. (7) Exhaust Notes. We still have the low speed exhaust boom to deal with on the Ph.lll. This will be a source of complaint under London conditions. Are the ribbed manifolds the lightest use? They appear to be unnecessarily heavy and also to raise the water bonnet temperature unnecessarily. Handwritten: New large unribbed manifolds for Continental Ph (8) H.{Arthur M. Hanbury - Head Complaints} L. L. will-valve springs Are the h.l.l springs that are breaking likely to be worse off for stress and strain than the Bentley. They seem sensitive to coil deflection. Cannot we make a set of parrallel springs on the lines of those used on the T.I. Bentley to produce inner springs to suit. Handwritten: These Springs (9) Chassis What are we going to do about sideways shake. Having proved that it is, is it repairable or uncurable? Handwritten: Rear Spring anchorage | ||