The home master, with the intention of repairing the engine, will be faced with the need to make a certain choice. The decision to replace the cylinder block, piston group and crankshaft depends on many factors, the most important of which is the condition of the engine block cylinders. Other factors include cost, the availability of specialized refinishing workshops, the time it takes to carry out repairs, and previous experience with such work.
Some of the alternative repair methods are:
Custom Parts - If inspection has shown that the cylinders of the engine block and most of its components are in a condition that allows them to be used further, the most economical alternative is to purchase only the necessary spare parts and parts. Carefully examine the cylinders, crankshaft and pistons / connecting rods. Even if there is only minimal wear on the cylinder, the cylinder bores should be ground.
Replacing the piston group - if the inspection showed that all parts have a lot of wear, we recommend replacing the piston group with a new one, rather than buying parts separately. The piston group of the factory configuration includes sets: pistons, rings (compression and oil scraper), piston pins.
Replace with a set of connecting rods. If necessary, if the connecting rods do not have deformations and mechanical damage, you can replace the bushings for the piston pin, but after replacing it is necessary to expand the hole to the required diameter (fit piston pin).
The crankshaft after a thorough check must be replaced or reground to the next repair size.
Carefully consider which option best suits your needs and discuss the situation with a workshop or auto shop and more experienced repairers before ordering or acquiring replacement parts.