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).
List of circulating engineering modifications and component updates.
| Identifier | ExFiles\Box 154a\3\ scan0310 | |
| Date | 4th September 1937 | |
| -2- R/Mtn4/N.4.9.37 Cont'd.{John DeLooze - Company Secretary} The following sheets are in course of circulation:- Extra hole in each crank journal opposite to existing - grooves enlarged in intermediate bearings. Wheel drivers Ex.25109A. Water thermometer with flexible capillary. Cylinder block made in "Chromidium". Superflexit petrol pipe. Johnson & Phillips - Ne-oprene ozone resisting H.T. ignition cable. Raised front engine mounting. Modifications to cylinder block. Cantilever pedals. Brake drums - front and rear - in Chromidium instead of Millenite. Improved lubrication scheme to brake torsion shafts on rear axle. Rear axle pinion Acme thread clearance increased to an annular amount of .010 to .012. Big end bearing bush and connecting rod. Fixed dummy radiator shutters supplied John Marston. Radiator matrix using Mark VI. construction with .005 tinned waterway strip and .003 tinned airway strip. Lucas P.100 Open type headlamp. | ||