- Sep 25, 2004
- Marshfield , MA
Thank you for the link, Trav. I deal with worn out, sheared bolts, or just plain rusted solid. I once used a deep reach spark plug to tap a hole in an exhaust manifold after I had to drill out a sheared banjo bolt for the air injection. It worked great. IIRC I used a 3 corner file to cut the flutes.