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Finding TDC in a 5.0L Mustang (Top Dead Center)

Finding TDC



  • 1.Pull all the plugs
  • 2.Rotate engine clockwise using a ratchet, with your finger over the #1 cylinder spark plug
    hole until you feel pressure building in the cylinder.
  • 3.Now screw in your piston stop and gently rotate crank until the piston hits the stop.
  • 4.If your checking the damper mark it where it lines up with the timing mark on the cover
    or pointer. If you are trying to locate a cover mark them mark the cover where the damper
    mark lines up.
  • 5.Reverse the rotation and bring the crank back around until it touches the stop again.
  • 6.Make your second mark.
  • 7.1/2 the distance between the marks is TDC.




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