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).
Diagram illustrating modifications to an S.U. float chamber cover for Bensport petrol pump tests.
| Identifier | ExFiles\Box 31\5\ Scan075 | |
| Date | 18th July 1933 | |
| .187" DIA INCREASED TO .250" DIA NEEDLE VALVE SEAT .125" DIA RELEASE PORTS .175" DIA - 6 OFF NEEDLE SEAT CLEARANCE HOLE INCREASED FROM .437" TO .500" DIA NEEDLE IN FLOAT SUNK POSITION MODIFICATIONS TO S.U. FLOAT CHAMBER COVER. BENSPORT PETROL PUMP TESTS. H.B. | ||