Show WOBBLY WHEELS NEED INDEED REPAIRING RE P n 11 IRING practical plan outlined by chicago expert on taking proper care of auto by ERWIN GREER president greer college of automotive engineering chicago birst see that your wheels are rol ling true and keep them so the tire on a wheel that Is intermittently or con tenuously trying to run in a different direction from that of the car Is side slipping more or less thereby causing unnecessary wear pear wheels heels are out of line intermit bently if they wobble to test for this jack up one separately carefully block ing the other three run engine as slowly as possible with lov gear in and watch the wheel if it wobbles as a whole V lub ab included the axle Is bent and should be taken out and straightened at once but if hub re solves evenly and only the rim bles then the wheel itself Is distorted and must be re trued the cost of such re or new wheel will soon be repaid by the resulting increased tire and gasoline mileage test for or rear wheels bear rear NN wheels heels vv which aich do not wobble are seldom out of line with each other but if the car has been in collision or traversed extremely rough roads it would be well to test for this as fol lows take a fairly stiff and straight board long enough to extend from the rear part of rear wheel to beyond the front of car hold one edge at one end against a rear wheel tire touch ing both front and rear part of it and as near the center of wheel as possible the board pointing forward having if necessary been cut away to clear front wheel and touching the ground at that end get a friend to mark the ground where the edge touches it do the same at the other side of the car being careful to use same edge and end of board now measure between the marks thus made and note push car back or forward one half turn of rear wheels and repeat on each as beffie agian using tl e same edge and end compare tl e two measurements and note the mean they will vary if wheels have even tl ti e slightest wobble test for front wheels on the majority of cars the front wheels heels I 1 lave ave a ve under gither that Is they are closer together where here they touch the ground than at the r upper edges and where that Is the case they should also I 1 ive forea forc gither ither that Is tl ey should be nearer together about 14 inch at their front than at their rear rey edges just A hy by this Is done Is out side the scope of tl ti ese notes but the foregather must be as nearly correct as possible if tire life Is to be conald ered jack up each in turn and spin to test for wobble with board held at front wheels as given abo above aboe e for the rear ones and pointing tow toy ard th the e rear turn steering wheel slightly to right or left until the distance from board to rear wheels Is the same on both sides of the car the wheels are now set true for going straight ahead now use board on front wheels exactly as already described for rear ones marking on the ground and ceasur ing at both fr nt and rear of car if ten feet is the length of the board from center of wheel to where it es the ground about twenty tw enty feet will of course separate the front and rear marks and the distance in such case beh een the rear marks should be about 1 to 2 inches greater than at the front end if correct adjust by lengthening or shortening the tie rod that rod connecting the swivel ar arms in s of the wheels across the car |