Aviation engines; design--construction--operation and repair; (1919)
Pagé, Victor Wilfred, 1885-1947 · New York, The Norman W. Henley publishing co. · leaf 260
the forcible contactbetween the plunger and valve stem produces a rattlingsound until the valves become heated and expand and thestems lengthen out. Clearance must be left between thevalve stems and actuating means. This clearance is clearlyshown in Fig. 103 and should be .020 (twenty thou-sandths)… … Valve-Stem Clearance.020 Fig. 103.—Diagram Showing Proper Clearance to Allow Between Adjust-ing Screw and Valve Stems in Hall-Scott Aviation Engines. and length of valve stem. On the Curtiss 0X2 enginesthe clearance is but .010 (ten thousandths) because thevalve stems are shorter. Too little…
Airplanes
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