As a marine engineering company, we have often encountered engine blocks where the main bearing housings become misaligned due to bearing failure, excessive loading, or prolonged operation. In many cases, cracks also develop around the main journal housing. Replacing the engine block is expensive and time-consuming. The practical solution is in-situ line boring combined with metal stitching.
At RA Power Solutions, we restore damaged engine blocks, compressors, gearboxes, and turbine casings directly at the site using portable line-boring equipment. The process maintains the original bearing centerline with an accuracy of up to 0.02 mm, eliminatiin-situ line boringve the engine from its foundation.
When cracks are present around the main bearing housing, line boring alone is not sufficient. The casting must first be repaired using the Metal Stitching and Metal Locking process. This cold repair method restores the strength of the casting without welding, heat, or distortion.
Once the crack is permanently repaired, precision line boring is carried out to restore the bearing housing to OEM specifications.
We undertake on-site:
With over 47 years of experience, RA Power Solutions has successfully carried out In Situ Line Boring and Metal Stitching on marine engines, power plants, compressors, gearboxes, and heavy industrial equipment worldwide, restoring damaged components quickly and reliably while minimizing operational downtime.
