How A Diaphragm Feed Pump Works? (Gasoline) - YouTube
SOLEX 3800 : FUEL PUMP + MEMBRANE RUBBER RED + PVC DIAPHRAGM WHTIE VELOSOLEX VINTAGE MOPED PETROL FILTER BIKE BICYCLE OLD SCHOOL RETRO CLASSIC ANTIC, Fuel Filters - Amazon Canada
Manual Fuel Pump – Double Diaphragm – For 15 to 55 gal Drum – Free Flow Rate 1 gal/5 stroke
Diaphragm pump - Wikipedia
Original Stud-mounted Fuel Pump - Short Diaphragm - Fuel Pump - Fuel System - 1955-1965 | Rolls-Royce Silver Cloud I, II, III & Bentley S1, S2, S3 Parts - Catalogues | Flying Spares