Spark plugs that haven't been changed for a long time can become one with the cylinder head. Fortunately, it's possible to repair damaged threads instead of scrapping the head. (Photograph by Chris ...

There's nothing more annoying mid DIY project than having to deal with a stripped screw hole. You’ve drilled your hole and you’re ready to go, then it gets damaged. Stripped screw holes can happen in ...

We've all been there. You're tightening a bolt into a threaded hole and it's a bit harder than usual, and then the whole thing goes loose like the metal threads ...

Occasionally, spark plug threads are ruined by being stripped or burned out. When this happens, a product like these Phillips locking inserts comes in mighty handy. These neat threaded inserts can ...

Before you undertake any of this work, re-read the article "Deciding if you should do the job yourself," and if your vehicle fits even one of those descriptions, don't try to do the work in this ...