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).
Summary of faults noted during the first 6,000 miles of running for a Silver Phantom Continental Test Car.
| Identifier | ExFiles\Box 109\4\ scan0153 | |
| Date | 18th July 1939 | |
| To. Rm.{William Robotham - Chief Engineer} Châteauroux. 4/18.7.39. 30.G.VII. - Silver Phantom. Continental Test Car. Summary of faults noted and work carried out during first 6,000 miles running. ENGINE. 1) Smell of Oil. This was attributed originally to breather, but it has since been found that various leaks from joints occur and by the end of a long run, some of the oil finds its way onto the exhaust pipe. The rocker cover joint has shrunk nearly half an inch, allowing leaks at either end. Leaks also occur from the tappet cover joints and elsewhere. 2) Tappet Noise. This has been found not to be general, but to the individual wear of the top cup of No 5 push-rod EB.4199 apparently due to ineffective hardening. 3) Oil Pressure. This was in excess of 30 lbs/sq" under normal running conditions but has now been raised to as near 40 lbs/sq" as stretching the relief valve spring will permit, on instructions received. 4) Leaness on Part Throttle. This is only just apparent under certain conditions. We wish to try .034 jets in place of the .031 jets fitted, and observe the effect on consumption. 5) Gradual loss of Water from Radiator. 4 to 6 pints per 2,500 miles. This loss is not excessive but not up to B.V. standard. We have not yet been able to locate any leaks. | ||