STEERING RACK Kirkham Motorsports（转向器Kirkham赛车）.pdfVIP

STEERING RACK Do, or do not. There is no try. Yoda, George Lucas 140 We purchased a steering rack from a highly swage on the housing—which, in turn, squishes the regarded manufacturer. Then, when we tried to align bushings into a very sloppy, triangular shape! When the car, the measurements randomly kept moving all I told the manufacturer the end play in his rack was over the place. With the help of a laser, we finally 0.060 inches, he said, “What’d you expect—an Indy isolated the problem to loose bushings in the housing. rack?” The only way to fix this problem was to cut the When we took the steering rack apart, we noticed the steering rack apart on the band saw and make our rack bushings were kept in place only by a triangular own tube and bushings. 141 Milling the remaining part of the tube out of the housing. Warming up the housing to get it to expand. We made a new steering tube and pressed it into the housing (below). We cut a special snap ring (right) out of titanium on the water jet to hold the bushing in place. Titanium is a wonderful spring material—and it doesn’t rust. 142 After all that work, we put the problem rack back in the car and found there was a shimmy in the steering wheel when driving. We traced the problem to the pinion bearing. Unbelievably, the manufacturer