In situ crankshaft grinding is a practical method of repairing damaged, worn, scored, or oval crankshaft journals without removal of the whole crankshaft from the engine. It is a common process for marine engines, diesel generators, power plants, compressors, and heavy industrial equipment. Damaged crankpins or main journals are ground to the required repair size using a portable grin... https://insitucrankshaftgrinding.com/in-situ-crankshaft-grinding/