Why mechanics love air tools

How do mechanics remove seized engine gears without breaking anything?! 🚀⚙️
During a massive engine teardown or timing chain replacement, mechanics often have to pull heavy metal shafts and gears out of the engine block. Because these parts are subjected to extreme heat and tight tolerances, they regularly become completely seized! Amateur mechanics will try to force them out using a massive pry bar, which will instantly crack the brittle cast metal engine block!
In this incredibly satisfying shop video, a professional mechanic uses a specialized pneumatic extractor tool! By hooking it up to compressed air, the tool sends rapid, intense vibrations directly through the metal. This completely breaks the tension, allowing the mechanic to literally pull the heavy gear and shaft right out with one hand! Watch until the very end to see how easily it slides out!