Aviation engines; design--construction--operation and repair; (1919)
Pagé, Victor Wilfred, 1885-1947 · New York, The Norman W. Henley publishing co. · leaf 257
he head and the stem, and as thestem is either screwed or riveted to the cast-iron head 258 Aviation Engines the constant hammering of the valve against its seat mayloosen the joint. As soon as the head is loose on the stemthe action of the valve becomes erratic. The best practiceis to machine the… … Fig. 100.—Showing Clearance Allowed Between Valveand Valve Stem Guide to Secure Free Action. Stem mobile engines are not looked upon with favor in theaviation engine. Valve stem guides and valve stems mustbe machined very accurately to insure correct action. Theusual practice in automobile engines…
Airplanes
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
