If you try to remove the throttle body screws w/o following these instructions, you will probably break the screw. They break easily.

Throttle Body Screws
  • Mark the valves so that you put them in the exact same side and direction.
  • 1st grind off the threaded end of the screws flush with the throttle shaft. This will remove any mushroom.
  • Place something under the throttle shaft to support it while banging on the shaft. They bend easily.
  • Use a screw driver that fills the slot as much as possible.
  • While tapping on the screw driver twist the screw driver counter clockwise.
Screw won't come out?

You will have to drill and tap.
  • Starting with a drill bit much smaller than the screw diameter, drill a hole in the center. Maybe 1/8".
  • Increase the drill bit size so that it is slightly smaller than the screw diameter and drill through again.
  • If you are close enough to the diameter, the screw threads may come out.
  • If not, then chase the threads with a tap.
Note:
These instructions assume you have some experience with taps and drills. If not, then leave the project to a professional.

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