How to drill out engine block threads to re-thread bolt holes
  • 4 years ago
Stripping a bolt hole in an engine block can give you that sinking feeling.

Re-application of coils can make the thread/holes much stronger than before and provide much more torquing power.

Dont worry if you mess up on your money saving project. I have a video where I purposefully do just that and am able to recover and repair the bolt hole in a small engine.
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