Marshall, H. P.2022-11-152022-11-151948http://hdl.handle.net/10919/11259758 leavesapplication/pdfenIn CopyrightLD5655.V855 1948.M377Automobiles -- Fuel consumptionAutomobiles -- Motors -- ValvesHorsepowerThe effect of maladjusted valve tappets on the performance of an automotive engineThesis