Automotive Repair

Overtightening a bolt means applying more torque than the fastener or the parts it clamps can safely take. Four things typically follow: the bolt stretches and can break, the threads strip, the clamped parts crack or crush, and the bolt seizes so badly it becomes a nightmare to remove. Most of the time, a small … Read more

How to remove a broken bolt from an engine block comes down to one thing: how much metal is left in the hole. A stub that stands proud comes out with a wrench or Vise-Grips. A bolt broken flush needs an extractor. One broken below the surface needs drilling. A rusted-in fastener usually needs heat, … Read more