Drain the oil from the engine. We wash the engine and install it on a disassembly stand or stand

If possible, work on a special turntable that provides access to the engine from all sides, as it is very difficult to fix the engine from moving when unscrewing fasteners tightened with a large torque.

Remove the engine from the car.

Put the engine on solid supports.

Disconnect the gearbox from the engine.

Remove the cylinder head (see "Replacing the cylinder head gasket").

How to disassemble the VAZ-21126 engine

Using a 13 wrench, remove the three bolts securing the front support bracket of the power unit to the cylinder block

How to disassemble the VAZ-21126 engine

Remove the bracket.

Remove the oil filter.

How to disassemble the VAZ-21126 engine

Using a 10 wrench, unscrew the two bolts securing the coolant pump supply pipe to the cylinder block ...

How to disassemble the VAZ-21126 engine

Remove the pipe

How to disassemble the VAZ-21126 engine

Remove the gasket.

How to disassemble the VAZ-21126 engine

When assembling the engine, install a new seal

Remove the water pump and seal.

How to disassemble the VAZ-21126 engine

Using an 8 wrench, remove the six bolts securing the clutch to the flywheel

How to disassemble the VAZ-21126 engine

Remove the clutch.

How to disassemble the VAZ-21126 engine

Mark the relative position of the flywheel and the crankshaft.

How to disassemble the VAZ-21126 engine

With a 17" socket, remove the six flywheel mounting bolts

How to disassemble the VAZ-21126 engine

Remove the flywheel

How to disassemble the VAZ-21126 engine

Using a 10 wrench, unscrew the sixteen bolts securing the oil sump

How to disassemble the VAZ-21126 engine

Remove the oil pan along with the seal.

How to disassemble the VAZ-21126 engine

Using a 10 wrench, unscrew the three bolts securing the oil receiver

How to disassemble the VAZ-21126 engine

Remove the oil receiver.

Please note: in the groove of the receiver nozzle, a cut New O-ring.

Be sure to replace a severely compressed, hardened or torn ring.

How to disassemble the VAZ-21126 engine

Pry off with two screwdrivers

How to disassemble the VAZ-21126 engine

Remove the toothed pulley from the toe of the crankshaft

How to disassemble the VAZ-21126 engine

Remove the key from the groove on the toe of the crankshaft.

How to disassemble the VAZ-21126 engine

Using a 10 wrench, remove the six oil pump mounting bolts and remove the pump.

How to disassemble the VAZ-21126 engine

Using a 10 wrench, remove the six bolts securing the crankshaft rear oil seal holder

How to disassemble the VAZ-21126 engine

Remove the holder with the oil seal installed in it

How to disassemble the VAZ-21126 engine

Remove the gasket.

Turn the crankshaft so that the piston to be removed is at BDC (bottom dead center).

How to disassemble the VAZ-21126 engine

Using a TORX E10 wrench, remove the two connecting rod cap bolts.

How to disassemble the VAZ-21126 engine

Remove the connecting rod cap.

If it is difficult to remove the cover, first remove it with light blows of a hammer.

The cylinder number on the cap may not be visible, in which case mark the cap with the cylinder number.

How to disassemble the VAZ-21126 engine

Push the connecting rod inside the cylinder with a hammer handle

How to disassemble the VAZ-21126 engine

Carefully remove the piston with connecting rod from the cylinder.

When doing this, make sure that the lower head of the connecting rod does not touch the mirror of the cylinder, otherwise the mirror may be damaged.

Remove the rest of the pistons in the same way.

If you are going to remove the piston from the connecting rod, mark the piston with the cylinder number so as not to mix up the pistons during installation.

On the connecting rod, as well as on the cover, the cylinder number is stamped; if it is not visible, mark the connecting rod.

How to disassemble the VAZ-21126 engine

Using a 17" wrench, remove two bolts securing the five main bearing caps

How to disassemble the VAZ-21126 engine

Remove covers.

How to disassemble the VAZ-21126 engine

The main bearing caps are marked with notches according to the cylinder numbers.

If these marks are not clearly visible, be sure to additionally mark the covers in order to reinstall them in their original places: the covers are not interchangeable (the cylinder block is machined together with the covers).

How to disassemble the VAZ-21126 engine

Remove the crankshaft.

How to disassemble the VAZ-21126 engine

Remove the thrust half rings installed in the grooves of the middle bearing of the crankshaft.

How to disassemble the VAZ-21126 engine

Remove the liners from the main bearing caps

How to disassemble the VAZ-21126 engine

Remove the block bed liners.

If you do not intend to replace the liners, when removing, mark the liners on the non-working side with respect to covers and beds.

Remove the piston rings with a special tool.

If it is not there, remove the rings from the piston by carefully spreading the ring locks.

How to disassemble the VAZ-21126 engine

Using a screwdriver in the notch on the piston boss, remove the retaining ring holding the piston pin.

How to disassemble the VAZ-21126 engine

Remove the second snap ring in the same way

How to disassemble the VAZ-21126 engine

Using a suitable drift, push the pin out of the piston and remove the piston from the connecting rod

How to disassemble the VAZ-21126 engine

Remove the bearings from the connecting rod

Remove the bearings from the connecting rod cap.

How to disassemble the VAZ-21126 engine

If the liners remain on the crankshaft, remove them from the shaft.

new

Carburetor K-151V (Fig. 1) - vertical, emulsion, two-chamber, with a falling mixture flow and sequential opening of the throttle valves

To remove the clutch discs, perform operations 1 to 5 of the section " Replacing the release bearing of the UAZ-3151 "