Loosen the main bolts and carefully remove the girdle.

Measure the width of the Plastigauge to determine the bearing clearance of each journal.

Main bearing clearance should be 0.0008-0.0020 in (0.020-0.050 mm).

Do not continue if bearing clearances are out of spec. Double check that the main bearings, crankshaft, and girdle are installed correctly and that the crankshaft isn't excessively worn.