The engine is being disassembled for major repairs. Conditionally, the engine has already been removed from the car. The engine supports have been removed and the engine is mounted on a bed or stand

We remove the ignition module and the detonation sensor for this:

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We remove the tips of the high-voltage wires from the terminals of the coil

Unscrew the four screws securing the coil with a hexagon by 5.

Remove the ignition coil

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With the key on 13, turn off the sensor mounting bolt and remove the detonation sensor

We remove the drive belt of the air conditioner compressor for this:

Loosen the two bolts with the head on the 13 mounting bracket of the tensioning roller

With the head on 13, we turn the adjusting bolt counterclockwise.

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And we remove the belt from the roller and the compressor pulley

When installing the belt, it should be taken into account that it is located closer to the inner edge of the compressor pulley

We remove the drive belt of auxiliary units for this:

Разборка двигателя ВАЗ-2123

With the head on 13, we loosen the tightening of the three nuts of the tensioner roller bracket

Разборка двигателя ВАЗ-2123

The location of the belts can be seen in the photo.

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Rotate the adjusting bolt by 13 counterclockwise with the head and loosen the belt

We remove the belt from the tension roller

We remove the generator for this:

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With the key on 13, we turn off the nut of the bolt of the lower mounting of the generator

Remove the bolt

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Unscrew the nut of the bolt of the upper mounting of the generator

Holding the generator, remove the bolt

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We remove the generator.

We remove the generator bracket for this: with the key on 13, we turn off the bolt fastening the plate to the bracket

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Unscrew the two bolts of the lower bracket mounting

With the head on 13, we turn off the bolt of the upper bracket attachment

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Remove the generator bracket

Remove the gasket between the bracket and the block

We remove the power steering pump and the oil filter bracket for this:

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With a screwdriver, we keep the pulley from turning and loosen three bolts of fastening the pump pulley in turn

We remove the pulley

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With a cap wrench on 13, we turn off the bolt of the lower fastening of the pump plate

Unscrew the bolt of the upper mounting plate

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With the key on 13, we unscrew the bolt of the lower attachment of the pump to the oil filter bracket

Unscrew the bolt of the upper mounting of the pump

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We remove the pump together with the plate.

With the head on 13, we turn off the three bolts of the oil filter bracket attachment to the block

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We remove the bracket with the support roller

Remove the O-rings

We remove the oil separator of the crankcase ventilation system, the pallet and the oil pump, for this:

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With a cap wrench "on 13", we turn off the cap nut for fixing the lid.

Remove the sealing copper washer.

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Remove the oil separator cover

Remove the cover gasket

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We screw two M8 nuts onto the oil separator stud, close them and turn the stud off

We take out the fixing pin of the oil separator

With pliers, we remove the oil separator from the cylinder block socket

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With the head on 10, we turn off nineteen bolts securing the crankcase pan to the cylinder block

We remove the sump pallet

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We remove the pallet gasket

Unscrew the two bolts of the oil pump attachment to the block with the head on 13

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Remove the oil pump mounting bolts

We remove the sealing gasket of the oil pump

We remove the coolant pump for this:

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With the head on 13, we loosen the tightening of the three pulley mounting bolts. Alternately inserting a screwdriver between the screws from turning.

We remove the pulley

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With the head on 13 with an extension, we unscrew the two bolts of the lower fastening of the pump housing to the cylinder block

Unscrew one bolt of the upper mounting of the pump housing

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Removing the coolant pump

A gasket is installed under the pump housing. When installing, we change the gasket

We remove the flywheel and the clutch housing cover;

Снимаем маховик и крышку картера сцепления

With a 10 key, unscrew the four bolts securing the clutch cover

Снимаем маховик и крышку картера сцепленияСнимаем маховик и крышку картера сцепленияСнимаем маховик и крышку картера сцепления

With the head on 17, we turn off the six bolts of the flywheel attachment. We fix the shaft from turning with the mounting blade

Remove the washer, remove the flywheel

Next, we remove the cylinder head assembly with the receiver, intake pipe and exhaust manifold;

timing chain, chain tensioner shoe, crankshaft sprocket;

- oil pump drive roller

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With the head on 10, we turn off the six bolts securing the rear crankshaft oil seal holder to the cylinder block

We pry the tides of the holder with a screwdriver and remove it assembled with an oil seal.

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We remove two square-headed bolts from the oil seal cover.

Remove the gasket

With the key, turn off the bolt of the oil separator drain tube bracket by 10 and remove the bracket.

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With the head on 14, turn off the two nuts of the connecting rod cover fastening

Knocking with a plastic hammer on the surfaces of the connecting rod cover

Remove the connecting rod cover

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Remove the lower connecting rod insert

Leaning on the ends of the rods of the connecting rod bolts, we shift the lower head of the connecting rod from the neck of the crankshaft

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With the wooden handle of the hammer, we rest against the lower head of the connecting rod and push the piston into the cylinder.

We remove the piston with the connecting rod from the cylinder. We also remove the pistons from the other cylinders

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Unclench the lock of the upper compression ring

Remove the upper compression ring.

We also remove the lower compression ring

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We take out two discs of the oil ring.

We remove the oil ring expander

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To remove the piston from the connecting rod, we pry the locking ring of the piston pin with a screwdriver

We remove the ring from the groove of the piston boss. In the same way, we take out the second locking ring

By sliding the piston pin, we remove it from the holes in the piston and in the connecting rod head

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Remove the piston from the connecting rod

With the head on 17, unscrew the two bolts securing the cover of the main bearing of the crankshaft.

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If the parts will be reused, then you need to mark them.

Remove the cover of the main bearing

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We remove the inserts of the main bearing from the cover.

We also remove the remaining caps of the main bearings

We remove the crankshaft from the block.

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We remove the half-rings from the ducts of the rear support of the cylinder block

We remove the upper liners of the crankshaft main bearings from the cylinder block supports

Preparing the engine for inspection and detection