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 oil retaining device for the Wraith crankshaft rear end, which is holding up the release of 100 sets of parts.
| Identifier | ExFiles\Box 8\5\ 05-page24 | |
| Date | 22th March 1938 | |
| 617. To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. Hy{Tom Haldenby - Plant Engineer}/CS. c. RHC{R. H. Coverley - Production Engineer}/S.Smith. c. Mx.{John H Maddocks - Chief Proving Officer} c. Roy{Sir Henry Royce}/Ms. c. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}5/AP.22.3.38 WRAITH CRANKSHAFT REAR END. We understand that the above with reference to the oil retaining device is holding up the release for the 100 sets of Wraith parts. The present arrangement included on LOP.1487 as per 26.G.Vl.{V. Lewis / Mr Valentine} (15,000 miles test) and several other experimental cars including Sg{Arthur F. Sidgreaves - MD}'s car appears to be working satisfactorily, although Mx{John H Maddocks - Chief Proving Officer}'s car 27.G.Vl.{V. Lewis / Mr Valentine} is giving trouble, but on this particular unit the main bearings are Halls metal with a larger clearance than normally used with whitemetal bearings (Standard), which is the possible cause why this car should be worse than the others. The actual leak from 26.G.Vl.{V. Lewis / Mr Valentine} over the 15,000 miles test having been collected by means of a tin under clutch pit has amounted to less than ¼ pint. In view of this evidence therefore and the fact that the alternative scheme ECD.238 has not yet been tested, we recommend that we adhere to the existing arrangement LOP.1487 for the 100 cars. We should like to emphasize that the quality of felt be equal to that used on the 25/30 and Bentley. This is mentioned on account of the first batch of felts received for the Wraith were of definitely inferior quality and appeared very loosely woven. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||