Many vehicle owners may be unaware it is not always necessary to buy a brand new engine when the old one in their car fails to work. As in clothes and furniture, there are also second hand engines that although may not have the newest parts can still perform its needed functions. These are the so-called rebuilt or remanufactured engines.

Rebuilt engines are those that have been dismantled, checked, cleaned and their parts repaired or replaced for upgrading purposes. Using this type of engine known as repowering is less expensive compared to purchasing a new engine or vehicle and it can even lengthen your cars life if you choose the right one for your vehicle. Some parts may still be the original or they can be slightly used or they can also be brand new. Whats important to remember is to always ask for a warranty from manufacturers. Others may provide a certified staff and checks on used engines or a combination of both.
Involved in the process of rebuilding engines are the reforming of the piston-cylinder system, smoothing and lubricating of all bearings, regrounding of crankshaft or camshaft and connecting of rods that have been gauged. Replacement of other parts including the timing belt and gaskets may also be needed.