7. Use An Impact Driver


Removing Stuck Fasteners

While bike manufacturers don’t use phillips head screws on engines as much as they used to, the home mechanic can still run into them on occasion. When phillips heads get munged up, use an impact driver. Impact drivers take a hammer blow and turn it into rotational force. So, when you hit it with a hammer, the screwdriver tip is jammed into the screw head, creating a tighter mechanical bond between the tip and the screw at the same time that impact driver attempts to rotate the screw. There is something quite satisfying about banging on an impact driver with a hammer and watching the screw begin to turn. This can also be done to bolts, provided you have hardened sockets. (Regular sockets can shatter.)

  • john burns

    Nice. Say, is that THEE Dean P Groover?

  • john phyyt

    Remember ! Use your mind; very occassionally you will come across a left hand thread: The shift rod on my aftermarket quickshifter has one , so it isn’t just ancient machines either.

  • David Blaska

    Great advice! I just had the same problem, used hex sockets instead of Torx and reamed out the bolt heads. Ordered the Easy Outs and purchased Craftsman Bolt Outs (which did not work). So I hit them with a hammer, squired the Liquid Wrench, and tapped in a one-size larger Torx socket. Voila!

    • Evans Brasfield

      Nice job! Maybe I should’ve added an additional step for persistence.

  • Mark Wagila

    Oh, the joy of snapping off an easy-out!

    • Evans Brasfield

      I feel your pain!