1. Clean the crankshaft and dry it with compressed air if possible
2. Check up a condition of necks of radical and rod bearings.
3. If the crankshaft has been reground, check that there are no burrs left around the crankshaft oil holes (holes are usually beveled).
4. Using a micrometer, measure the diameter of the crankshaft main and connecting rod journals and compare the results with the Specifications (refer to accompanying illustration). By measuring the diameter at several points around each neck, you can determine the ovality of the neck. And by measuring the diameter at the edges of the neck, near the counterweights, you can determine the taper of the neck. If any of the results obtained differ by more than 0.025 mm, the crankshaft must be reground and smaller bearings installed.
5. Check up a condition of contact surfaces of epiploons on each end of a crankshaft. If there is a groove in the surface of the crankshaft, consult an engine overhaul specialist to determine repair.