Originally Posted by
mcgreivey
If they turn when you screw them in and out, they're probably fine. If the screws are rusty, you might want to hit them with WD40 or something and let it sit for a while before trying to turn the screws.
One of them is very rusty, so I will definetely hit it with some WD40 before testing them. Should I put grease on the two springs that move the mechanism close-to and away from the bike as well, or is that WD40? Those springs are rusty, but hard to get to.