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).
Examination of Phantom III clutch plates revealing issues with bedding, alignment and potential distortion.
| Identifier | ExFiles\Box 131\4\ scan0207 | |
| Date | 11th May 1937 | |
| To Hs.{Lord Ernest Hives - Chair} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} c. Rm.{William Robotham - Chief Engineer} c. E.{Mr Elliott - Chief Engineer} c. RHC.{R. H. Coverley - Production Engineer} c. By.{R.W. Bailey - Chief Engineer} Cricklewood. May 11th. 1937. PHANTOM III. CLUTCH. Upon examining clutch plates taken down for jaggers, it is surprising to note the condition of the bedding of the fabrics. The pressure plate side there was only approximately one inch on the inner circle bedding. The outer part of the fabric does not appear to bed at all. On the flywheel side the inner portion of the fabric was bedding. Generally from the examination of these plates the pressure plate and the flywheel faces do not appear to be in alignment, with the result that a full bedding of the clutch surface does not take place. Pressure Plates Either these plates are distorting quickly or the machining is faulty in the first place. The surface is dished inwards, and generally three high spots where the metal is blued. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||