Note. When checking the clearance, never turn the crankshaft.
Remove oil residues from the main journals and bearings of the cylinder block.
Install the crankshaft and crankshaft thrust washers on the 3rd support (grooves to the cheeks of the crankshaft).
Cut several pieces of calibrated wire.
Lay the wire along the axis of the main journals of the crankshaft (outside the area of the holes for greasing the bearings).
Install the crankshaft main bearing caps with cap 1 on the flywheel side.
Tighten in order to the correct torque (25 Nm + 47°± 5°) and tighten the crankshaft main bearing cap bolts to the required angle. Remove the main bearing caps and crankshaft.
By flattening calibrated wire (1) determine the gap between the bearings and the main journals using the scale (2), printed on the package.
Check the clearance, which should be 0.027-0.054 mm. Clean the crankshaft and main bearing shells from the remnants of the calibrated wire.