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Show Good Ideas Sometimes May Become Quite Silly Frequently It Is necessary to put un end to good Ideas that gain so much headway they become foolish. (! ner-ous ner-ous tappet clearance Is n udvuntiigi' in hill climbing and does give a snappy snap-py motor, but there Is great (lunger In carrying the Idea toe far. If there Is too much noise, It tuny mean there Is a great sacrllice In power. Also much depends upon the make or type of eng'ne. Where valves Hre of cheap metals with a tendency to excessive expansion, loose tappets will intike for power, but only when the engine Is warmed up Since most engines en-gines are hot when they reach the real struggle on hills, excess tappet clearance clear-ance Is proper for engines of such construction. con-struction. Where valves are designed to coinpensnte for their own expansion, expan-sion, however, noise may be a real loss of power. The danger lies In applying the noise-power noise-power theory to the wrong engine, to the wrong conditions or by overdoing the Idea. If valves do not lift fully. 1 they will not let In enouch gas nor ex- ' baust burned gases quickly enough, i This means power loss. Some drivers I do most of their hill climbing when i their engines are cold. The less tappet 1 clearance the better under such clr- i cumstanees. 1 |
