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Show ; TAKING OUT THE BACK LASH PLAY . Hack pish or play in t lie steering unit ;.. is a el'n common failing. On most f, typos of worm and worm and wheel s.' reduction gears, which are located at the j; bottom of the post, the shaft of the ,'. bottom wheel is equipped with an ceil ce-il centric bushing. Jw turning this, bush-kr bush-kr ing so that (lie oar teeth are forced "o proper mesh 'the buck lash may be i taken up. End play in the crankshaft is apt to 0be noticed first when tho car is throttled throt-tled down to about five miles au hour, I if; when a sort of bucking takes phi.-e with, accompanying knocking. If the end play is excessive the knocking will eou-"e eou-"e tinuo as the speed increases.' The probable cause' of this condition ;,',: s a flattening of the main bearing , t flanges so that the shaft can move 0!' backward and forward, and it pounds ;. still moro heavily against the bearing ? ends. In many cars having four bear-' i"K crankshafts the second bearing from the rear is designed to take the thrust, stf consequently replacement of that bear- ing cures the trouble. In a three-bearing shaft the center 01 or rear will usually have to be replaced. In the four-bearing shafts it is much better to change the one bearing rather I: than attempt to remove the plav bv using two or three bearings with thicker :'r;!; flanges. Bo nut let your engine t-ontinue to run when one or more of the cylinders. o.': are missing explosions. This makes the it: eugwie knock, although vou niav not liif notice it, flattening out ' the bearings "V. d hastcniug the time when the bear-''mgs bear-''mgs w ill have to be taken op -an c:-ii c:-ii pensive job, which every motorist puts )C.'olf as lung as possible. , jt |