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).
Modifications to the Bentley II Chassis accelerator pedal bearing to address sticking issues.
| Identifier | ExFiles\Box 103\5\ scan0191 | |
| Date | 1st June 1937 | |
| c. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} BY/HRB4/M.1.6.37. G R BENTLEY II. CHASSIS. PEDALS SEC; 7100. RE ACCELERATOR PEDAL BEARING. Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}6/JH.22.5.37, It has been reported by memo' that the complaints of Throttle sticking are partly due to the Accelerator pedal Bearing not being sufficiently lubricated to prevent sticking. To increase the clearance between the pedal Shaft and Bearing from .002 - .004 to .005 - .007, we have reduced the Shaft Dia: from .623-1 to .620-1, and to improve the flow of oil, have increased the number of oil holes in the Shaft from 1 to 3. The float of the Shaft in the Bearing must be .025+15. Accordingly, the following part has been detailed, and attached are two Blue Prints of same:- FB.2890 Accelerator Pedal Shaft. 1 off, replacing F100424. The Shaft should be fully charged with oil when fitted to the Car. For Shafts already produced, we have modified the existing drawing F.100424 by Alteration No: 16805/F.{Mr Friese}, to give the increased clearance, but we have not increased the number of oil Holes. BY/HEB.{H. Biraben} [initials] | ||