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).
Meeting minutes discussing chassis delivery dates, controllable dampers, and troubleshooting a camshaft squeak issue.
| Identifier | ExFiles\Box 30\2\ Scan329 | |
| Date | 30th November 1933 | |
| Minute No. 10 Cont'd.{John DeLooze - Company Secretary} (Item 7) -4- customer would prefer to wait and have their chassis delivered after January 1st so that the owner could truthfully call his car - in this instance - a 1934 car. It was agreed that the Controllable Dampers be adopted from 160 PY onwards and that actual delivery of the chassis would be delayed in order that this could be done. 11. Item 8. Camshaft Squawk E.7/HP.9.10.33. FHB/WT16.11.33. ERB/E17.11.33. Hs.{Lord Ernest Hives - Chair} referred to the trouble which had been experienced with Mr. Joll's car and which had been investigated by the Experimental Dept. He said this trouble is a very elusive one and there does not appear to be any very definite information on the subject available yet. He reported that in this particular instance the squawk was due to sticking valves. A new head was fitted to Mr. Joll's car and the head complete which was removed is now the subject of experimental investigation. A report will be issued in due course. E.{Mr Elliott - Chief Engineer} said that the latest P.II. engine seems to be subject to this peculiar trouble of camshaft squawk and it can be temporarily cured by altering the end location of the camshaft thus changing the contact position of the cams with the tappets but no definite cure can yet be prescribed. E.{Mr Elliott - Chief Engineer} also said that design alteration seems to be necessary and this will most likely involve the adoption of roller tappets. It was agreed that a set of roller tappets be produced and tried out on an existing experimental car. E.{Mr Elliott - Chief Engineer} said that he particularly wished a test to be made with the roller tappets to see whether the engine power was affected in any way as the roller tappet produced a slightly altered valve motion. | ||