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).
Outlining service work procedures for fitting rebored cylinders or changing piston rings on 25/30 & Bentley models.
| Identifier | ExFiles\Box 107\2\ scan0069 | |
| Date | 19th August 1937 | |
| Copy. To Hs.{Lord Ernest Hives - Chair} from GWH.{George W. Hancock - Head Chateauroux} c. to By.{R.W. Bailey - Chief Engineer} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to Rm.{William Robotham - Chief Engineer} c. to Sr. c. to Br.{T. E. Bellringer - Repair Manager} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}1/N.19.8.37. 25/30 & Bentley - Service Work when dealing with the fitting of rebored cylinders or changing of piston rings. [Handwritten] Same method is adopted for the Mk V & hooking up con rod and fitting HP scraper ring To facilitate Depots when dealing with repair work to the engine, the sketch and routine method should be of considerable help under the following conditions:- (1) When refitting an engine in the chassis, it is easier to leave off the cylinder head and block for manoeuvring etc. (2) Fitting an over-size cylinder block. (3) Fitting new pistons or rings. It is not necessary to remove side engine guards and the bottom half which deletes the necessity of breaking the con rod bearings. One good engine fitter and mate with a youth to operate the pulley block can fit a cylinder block in 15 minutes, within a short time of practice. Straight legged callipers are used to compress the piston rings. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||