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.

Damaged threads can be restored to better-than-new condition in spark plug holes, carburetor fuel inlets, transmission and engine castings, oil drain plugs, exhaust and intake manifolds, cylinder ...

Repairing damaged threads in truck wheel hubs is essential for maintaining safety and performance. This step-by-step guide shows you how to assess, repair, and restore damaged threads without ...