S & W Performance Blog McDonough - Atlanta


Why you want to rebuild your old engines

S & W Performance Rebuild diesel and gas engine. We are a full-service engine machine shop serving McDonough, Stockbridge, Locust Grove, Atlanta and surrounding cities. 678-263-0159

An engine is made up of hundreds of parts. These parts can have different service lives, this means a lot of parts in an tired old engine can be reused. There is a lot involved when it comes to rebuilding an engine, especially if it has a lot of wear on it.engine machine shop rebuild engine mcdonough

First of all is the most basic of rebuilds, this would be a basic re-ring this involves the replacement of the piston rings which includes gaskets and bottom end bearings. This is a great affordable way to extend the life of an engine as most of the expensive parts are reused and the labor required is minimal.

Second is the most common type of engine rebuild. Older engines often have cylinder wall damage usually slight gouges and scratches this reduces the ability of the rings and piston to seal the combustion chamber effectively. To remedy this situation, engine builders bore and hone the cylinder bores. Boring a cylinder bore removes some metal around the bore which increases its diameter. Honing a cylinder puts cross hatch markings on the cylinder wall this allows the new rings to bed properly increasing its sealing ability. Increasing the diameter means you also need to replace the pistons and piston rings. The advantages of doing this is increased cylinder pressure, and higher performance. This rebuild also includes replacing old gaskets and bearings.

Lastly, there is a complete rebuild. This rebuild is usually for the full on racers and those seeking all out performance. This rebuild includes all of the above and includes the replacement of other higher performance parts. After a bore and hone the pistons and connector rods are replaced with performance variants these are often stronger and lighter than the originals. Then the head and block will be machined to ensure they are both perfectly flat to ensure the maximum seal between the two. In a high-performance rebuild the engine is going to be exposed to higher RPM and because of this, the big end is bored to ensure it is round and true. Also, the rotating assembly is balanced.

The world of engine rebuilding is an art at the high end, and S & W Performance has perfected this art.  Next time you need a engine rebuilt, contact us . We are here to help.