The crew over at Probe Industries have been building pistons and engine-related parts for over two decades, and their website is full of great information.

Have you ever gone to install a set of full-floating pistons and had the spiro-locks kick your ass? Who hasn’t, really? Well, thanks to Probe, we’re able to show you just how to install and remove them with ease – no more bloodied fingers or words coming out of your mouth that Mother would threaten to soap away.

Probe’s Shawn Mendenhall walks us through the battle-tested technique in the first video, explaining that the spiro-lock needs to be pulled open slightly, like a spring, in order to properly install it.

Not only does this make them easier to install, but gives the added benefit of taking up any potential extra clearance in the lock groove.

From there, he makes the install process look easy, walking the pair of locks in on each side of the piston pin.

For the removal of the locks, he suggests using a small screwdriver to pry the edge of the lock away from the edge of the groove while continuing to push down, and then just work the screwdriver under the edge of the lock in a circular fashion to remove it.

Their second video details oil rail supports, the reasons for using them, and how to install and remove them.

For example, if your piston pins intersect the oil ring groove – you’re going to need supports. If the pin bore doesn’t intersect the groove, you’re safe. Check to make sure that there are no burrs on the edge of the pin bore.

When installing your pistons, take note of whether there’s an anti-rotation detent on the oil rail support, and if so, those need to face down in the ring land towards the wristpin.

Follow along with the video to get the rest of Shawn’s Tech Tips, and for more information on the full line of Probe Industries pistons and related parts, check out their website.