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 deletion of the Phantom III oil cooler and the adoption of aluminium tin big-ends.
| Identifier | ExFiles\Box 148\5\ scan0282 | |
| Date | 4th February 1938 | |
| 1260 By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} c. RHC.{R. H. Coverley - Production Engineer} Rm{William Robotham - Chief Engineer}4/R.4.2.38. DELETION OF OIL COOLER P.III. With reference to RHC{R. H. Coverley - Production Engineer}/SB.{Mr Bull/Mr Bannister}2/MC.31.1.38., since seeing the big-ends removed from a customer's car after only 20,000 miles, I am of the opinion that we should go straight ahead with the aluminium tin big-ends as soon as the 12 sets have been satisfactorily manufactured and passed off test. We presume that the cost for producing this material is having serious attention, as we appear to be experiencing great difficulty in getting sizes other than suitable for Bentley main and big-end bearings. With regard to the oil coolers, we do not think there is any danger of bearing trouble on oil coolers without the overdrive, and the bench test indicate that there should be no trouble with the standard car. It would, therefore, appear that the oil cooler could be deleted as soon as the existing material has been used up. Rm.{William Robotham - Chief Engineer} | ||