Few things disturb us more than the bewilderment of a broken bolt or seized pipe plug in a casting. You’re at a loss for how to get the darned thing out. This is when you have to slow down and come up ...

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 ...

Even still, as the truck approached the century mark, it would be coming up on a few things that had yet to be performed. One of these was a spark-plug change, which is recommended for the 6.2L V-8 ...