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).
Issues with exhaust manifold studs and water leaks on the 25/30 HP model.
| Identifier | ExFiles\Box 104\2\ scan0277 | |
| Date | 12th January 1938 | |
| To By... from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} c. to Rm.{William Robotham - Chief Engineer} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to RHO. ----------------- Wyman - File Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}16/N.12.1.38. 523 ----------------- Re: 25/30 HP. - Exhaust Manifold Heads. ----------------- I have made enquiries re the screwing out of the studs holding the manifold. There are very few cases where the studs have screwed out. There are a number that have broken off close to the cylinder, and are very difficult to get out. These are the ones that shew a water leak after breaking. There are cases of water leaks from the core plugs, chiefly at the rear end of the cylinder. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||