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).
Cracking of the cylinder block at the water pump inlet on Bentley 25/30 models.
| Identifier | ExFiles\Box 131\4\ scan0028 | |
| Date | 1st February 1937 | |
| To E From Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux} c to Ey. c to RHC.{R. H. Coverley - Production Engineer} c to Rm{William Robotham - Chief Engineer}/Std. 1113 Kingsbury, 1st February, 1937. Bentley and 25/30. Water Pump Inlet to Cylinders. There have been several instances when the cylinder block has been cracked at the positions shown in the sketch, by the two studs which are screwed in to hold the inlet flange for the water pump. The holes come rather close to the edge and in screwing the studs into position the metal has cracked. This joint is also a source of water leaks at the bottom, between the joint faces. The design should be altered so that a counter-sunk screw could be inserted at the bottom as shown. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||