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).
Notice on the failure of a Bentley rocker shaft due to a loose pedestal nut, with instructions for depots.
| Identifier | ExFiles\Box 131\4\ scan0233 | |
| Date | 22th May 1937 | |
| W/K - KC! W/P - Sr. c. to Hd.{Mr Hayward/Mr Huddy} W/N - Br.{T. E. Bellringer - Repair Manager} c. to Rm.{William Robotham - Chief Engineer} c. to RHC.{R. H. Coverley - Production Engineer} 1113 Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}8/JH.22.5.37. Bentley Rocker Shaft. Tests have proved that the recent failure of a rocker shaft was due to a pedestal nut becoming loose. A rocker shaft was broken on the test bed within one hour after a nut on the central pedestal had been slacked off. Will Depots please check the pedestals nuts during there routine work. This applies to the 25/30 as well as Bentley. Rm{William Robotham - Chief Engineer}/.G.W.Hancock. | ||