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 proposed modifications categorized as 'Highly Desirable' and 'Non-Controversial'.
| Identifier | WestWitteringFiles\R\October1927-December1927\ Scan007 | |
| Date | 5th October 1927 guessed | |
| (2) (v) Petrol tank (filler, distant reading gauge, reserve control, shortened sump, flattened fish tail.) (w) Step-irons for toolbox. (x) Dipping lamps with brackets for new Lucas lamps. (y) Body brackets for four point suspension. (aa{D. Abbot-Anderson}) Serrated joint in clutch (latest WW. design.) (bb) New thrust on bevel pinion (this will be instructed immediately.) (2) HIGHLY DESIRABLE. Highly desirable but will take some time to complete. (a) New crankchamber upper and lower halves, stronger and lighter. (b) Modified valve tappets and push rods. (c) Modified oil pump drive and oil filter. (d) Plain bearing carrier wheel. (e) Cast iron cyl. blocks of simple shape to suit item (2) a.{Mr Adams}, having longer jackets and shorter skirts. (f) Cyl. head - slight modification to suit item (2) e.{Mr Elliott - Chief Engineer} (g) Modified oil gallery pipe in crankcase & bearing connections. (h) Oil relief valves and low pressure connection to head on steering side. (i) Modified undershields. (j) Improved cam forms. (k) Narrowed wheels and lightened hubs. (3) NON-CONTROVERSIAL. Parts that need no controversy because they can be done without delay. (a) Single downtake exhaust manifold to suit parallel control to front axle and injector exhaust heating for induction pipe. (b) Aluminium water pump and revised water inlet pipe. | ||