The self-repair car owner faces a choice when buying a remanufactured engine. The main factors are cost, warranty, availability of spare parts, and the time required for repair technicians to complete the job. The decision to replace the cylinder block, pistons with connecting rods and crankshaft depends on the results of the final inspection of the engine. Only after that you will be able to make a really correct decision in terms of labor costs and financial investments - to repair the engine or just buy an engine, not a replacement.
Some of the overhaul options are listed below.
Separate spare parts - if the results of the inspection show that the cylinder block and most of the engine components are in a condition that allows their further use. Purchasing individual parts and contacting an engine overhaul specialist may be the most economical option. First of all, a thorough professional inspection of the cylinder block, crankshaft and piston assembly with connecting rods should be carried out, and this should be done at a specialized service station.
Incomplete Cylinder Block - The incomplete cylinder block includes the cylinder block, crankshaft, and pistons with connecting rods. New bearings installed and all clearances properly adjusted. Existing camshafts, valve train elements, cylinder head and auxiliary units can be installed on the cylinder block. The acquisition at the service station is either not required at all, or is required to a small extent.
Complete Cylinder Block - A complete cylinder block includes the incomplete cylinder block plus oil pump, oil pan, cylinder head, cylinder head cover, camshaft and valve train components, sprockets/pulleys and timing chain/belt or gears and timing cover. All elements are installed using new bearings, cuffs and gaskets. All that is required is the installation of manifolds and auxiliary units.
Used low mileage engines - Some companies now offer used low mileage engines for sale, which offer a very cost-effective way to get your vehicle back up and running. These engines are often removed from cars that have been in an accident or come from other countries that have a higher turnover rate (faster obsolescence of the car). Used engines with low mileage usually have a warranty similar to that of an overhauled engine.
Before ordering or purchasing replacement parts, consider carefully which option is best for you, consult with service technicians, parts dealers and experienced engine rebuilders.