Elements of the crank mechanism (CRM)
1 - crankshaft;
2 - connecting rod;
3 - piston;
4 - piston rings;
5 - flywheel ring gear;
6 - flywheel;
7 - bolts;
8 - rear crankshaft oil seal.
Attention: Before removing the crankshaft, the following must be removed: flywheel, oil sump, oil pump, pistons with connecting rods, rear cover of the engine block.
Before removing the crankshaft, check the end play of the shaft. Install the gauge with the indicator coaxially with the shaft and rest the indicator rod against the end or the crank,
Press the shaft back as far as it will go and set the indicator scale to zero. Then push the shaft forward until it stops, record the arrow reading, which is equal to the play. If the play is greater than the permissible value, check the wear of the shaft thrust bearings. If wear is detected, the clearance can be reduced by installing new thrust bearings.
Main bearings (liners) of the crankshaft of 1.6 and 1.8 liter engines
The clearance can also be measured using feeler gauges. Press the shaft forward as far as it will go. Insert feeler gauges between the shaft and the front surface of the main bearing (see picture on the right).

Main bearings (liners) of the crankshaft of 2.0 liter engines
A - main bearings
B - thrust half rings

Check the markings on the main bearings. They should be numbered and have an arrow pointing towards the front of the engine. If there is no arrow, draw an arrow with paint before removing the caps. Loosen the cap nuts in several ¼ turn increments until they can be removed by hand.
Marking of main bearing caps
F - front cover;
R - back cover.
Tap the caps gently with a soft-faced hammer, then remove them from the cylinder block. If necessary, use the bolts as levers to remove the covers. Try not to drop the bearing shells.
Carefully remove the crankshaft from the engine. Place the bearing shells in their places, install the bearing caps and tighten the bolts by hand.
Crankshaft of 1.6 and 1.8 liter engines
Crankshaft 2.0 liter engines
