Show I I Ford N News VS e construction n of the and and The rho n- n no o design the most important among valves are arc SS V elements of modern automobile en- en engineering and manufacture A AFord IThe The desh designers ners r of the new Model special attention to these factors Ford gave and the result otheir of their r design and manufacturing specifications is n valve ve which ch is remarkable for its close fitting and resistance durability to he the oxidizing oxidizing or scaling ling effects of hot The rhe T gases valves ives in the Model A Ford made m of carbon chrome c cl are alloy aHoy They arc first die-cast die and then tIlen en ground with remarkable accuracy accuracy accuracy acy to the desired size The stems have mushroom ends to g give give e larger surfaces and quieter action when they come into contact with withie tIle the rods push-rods The carbon chrome alloy metal of If which they are arc made is particularly resistant to wear wear wear-L and nd to the L scaling ng effects of the hot gases eases which t the e va es valves must endure in their performance The Th- Tn Ford valve val terminates in in a acone acone acone cone over over which slips a shoe retainer hor shoe horse shoe e-shoe shaped which holds the spring sprig in pla place e As the cone head presents a large area to the tappet top and as the v valve lve foot is operating operating ing in oil there is not the slightest rish of the valve end burring over and md there is no necessity for an ad- ad to be fitted to the top of Oi the tappet The oil ba bath h in in the valve chamber i provides a cushion between the valve foot foo and the top silencing silencing- it cite efie On the ordinary engine engine the v valve va ro end is either or drilled led Iad t to take the cotter for or the spring cap an the removal of of metal metat in in this this process considerably weakens the valve a at a vital point The new Ford Fon i valve e actually is strengthened at the th foot This is considered the test greatest single advance in valve alve design that has yet been made in the internal i I I eon con engine It has lias produced and almost everlasting trouble proof piece one valve The Ford camshaft haft also has been beer specially designed to function for foi smooth nuiet 1 performance of the valves s The Tho Model A cams are so s design design- desi n 1 a- a ara a ra to rJ permit the push rods to Lak take taka min up the c clearance e easily and am not t impi a blow to the valves thu thus tending ta to qui quie quist operation The Thi Th corns cams are wide fated to give ive long lif life I and amid are shaped to 10 insure silent opera opera- operations of the valves |