Checking the diameter of the crankshaft main journals
Use a micrometer to measure the diameter (in the center of the seat) crankshaft main journals, which should be 51.959 - 51.979 mm (for M4R engine) and 47.959 - 47.979 mm (for engine H4J).
Compare the obtained diameter value with the diameter class designation applied to the crankshaft (see table "Crankshaft Main Journal Diameter Classes").
Checking the diameter of the crankshaft connecting rod journals
Use a micrometer to measure the diameter (X2) (in the center of the seat) connecting rod journals of the crankshaft, which should be 43.953 - 43.971 mm.
Compare the obtained diameter value with the diameter class designation applied to the crankshaft (see table "Crankshaft journal diameter classes").