all right guys today we're going to be going through and rethreading the cylinder head stud holes in this aluminum block now this is going to be specific to the 4v1 but it'll be the same general idea ...

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 ...

A spark plug can eject either due to poor design or a lack of sufficient torquing. You can fix this by tightening a loose ...

A cylinder head, especially an aluminum one, seldom fails on its own. Typically, there's another matter to contend with. Undoubtedly, the most frequent cause of cylinder-head cracking is an overheated ...

Cracked cylinder heads require specialized equipment to detect while blown head gaskets are identified through missing or frayed material.