Most people have heard of an engine rebuild but not as many really know what a rebuilt engine really is or what is done when an engine is rebuilt. Engines are rebuilt for a variety of reasons. In this article, we will take a look at why engines are rebuilt, what is done to rebuild an engine and some signs that your car might benefit from a rebuild.

There are two main reasons people choose to rebuild an engine: wear to engine bearings, and poorly seating piston rings. The moving parts of the engine (such and the crankshaft, rods, and pistons) are mounted on bearings that allow them to move freely. These bearings are lubricated by the engine oil. Bearings are built to last many thousands of miles, but they do experience wear after time. This wear is accelerated exponentially when a vehicle is poorly maintained and is run on low oil levels or the oil change schedule isn't properly followed.