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).
Phantom III (3-AZ-98) with tappet noise, detailing scored tappets, broken springs, and worn cams.
| Identifier | ExFiles\Box 96\1\ scan0243 | |
| Date | 30th December 1937 | |
| To By.. from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} c. to Rm.{William Robotham - Chief Engineer} Mx.{John H Maddocks - Chief Proving Officer} Hs.{Lord Ernest Hives - Chair} Files 361 Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}8/N.30.12.37. SWPL See me. Rm{William Robotham - Chief Engineer} Re: Phantom III - 3-AZ-98, Mileage 11,615 This came in for tappet noise. There were six badly scored tappets, the others were deeply lined at the centre i.e, peak of cam changeover. There were 20 out of the 24 bottom tappet springs broken. This is the first case of this occurring, noticed at Cricklewood. The cams of the camshaft were worn on the peaks of 6 cams. These were to be stoned down. They were not scored. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||