Bump steer correction
Posted: Sun Feb 26, 2017 1:45 pm
I have just done this with the bottom Spyder air tank level (S4 Elan). The steering rack platform was not level and lower at the driver side. I did the two DTI method and ended up shimming the driver side by some 45 thou more than the extra added to both sides. Originally there was circa 100 thou each side, so not correct for an incorrectly placed rack platform. On the first test it was showing the correct symptoms on the driver wheel, as you would expect.
At the risk of opening a can of worms, this (IMO) makes the point that you can't rely on the rack shims, the only way is to test. Not the first time I have found this. Racks are usually too low giving a toe in on bump and toe out on droop.
Mike
At the risk of opening a can of worms, this (IMO) makes the point that you can't rely on the rack shims, the only way is to test. Not the first time I have found this. Racks are usually too low giving a toe in on bump and toe out on droop.
Mike