Before disassembling, clean the engine from dirt
Using a 17 mm socket, unscrew the three bolts securing the front axle gearbox bracket to the cylinder block and remove the bracket.
Using a 13 mm head, unscrew the four nuts securing the left powertrain support bracket to the cylinder block and remove the bracket assembly with the cushion
After removing the brackets, mount the disassembly stand plate on their mounting studs and threaded holes in the cylinder block and secure the engine on the stand.
Remove the clutch.
Remove the flywheel and clutch housing cover (see Replacing the rear crankshaft oil seal).
Using a 13 mm socket, unscrew the four nuts securing the right powertrain support bracket to the cylinder block.
Remove the bracket with the cushion.
Using a 17 mm socket, unscrew the three bolts securing the generator bracket to the cylinder block and remove the bracket.
Using round-nose pliers, loosen the clamp securing the coolant outlet hose from the throttle assembly (VAZ-21214 engine) or from the heating unit to the outlet pipe of the heater radiator carburetor (VAZ-21213)
Remove the hose from the outlet pipe branch.
Using a 10 mm socket, unscrew the two nuts securing the flange of the heater radiator outlet pipe to the coolant pump housing.
Having unscrewed the nut securing the pipe bracket to the exhaust manifold (see. Replacing the gasket of the intake pipe and the exhaust manifold of the injection engine), remove the outlet pipe of the heater radiator and its sealing gasket.
Using a 13 mm head, unscrew the three bolts securing the coolant pump to the cylinder block and remove the coolant pump assembly and its gasket
On the VAZ-21214, dismantle the cylinder head assembly with the receiver, intake pipe and exhaust manifold (see Removing and disassembling the cylinder head of the VAZ-21214).
On a carburetor engine, remove the cylinder head assembly with the carburetor, intake pipe and exhaust manifold.
Remove the oil separator of the crankcase ventilation system, oil pan and oil pump (see the corresponding articles).
Holo Using a 10 mm wrench, unscrew the six bolts securing the crankshaft rear oil seal holder to the cylinder block.
Use a screwdriver to pry the rear oil seal holder by the lugs and remove the holder together with the oil seal.
From the grooves of the oil seal holder, we remove two special bolts (with square heads) for fastening the clutch housing cover
Remove the rear oil seal holder gasket
Remove the camshaft drive cover, dismantle the chain, crankshaft sprocket, oil pump drive shaft, chain tensioner shoe (see. relevant articles).
Using a 10 mm open-end wrench, loosen the bolt securing the bracket for the oil separator drain pipe of the engine crankcase ventilation system.
Remove the bracket.
Using a 14 mm socket, unscrew the two connecting rod cap fastening nuts (the piston must be at BDC)
After tapping the side surfaces of the cover with a hammer with a plastic striker, remove the connecting rod cover
Remove the lower connecting rod bearing shell from the cover.
Leaning on the ends of the connecting rod bolts, we move the lower head of the connecting rod from the crankshaft journal.
Leaning with the wooden handle of the hammer against the slot of the lower head of the connecting rod, we push the piston into the cylinder and remove the piston with the connecting rod from cylinder
Remove the upper bearing shell from the connecting rod head.
Similarly, remove the pistons with connecting rods from other cylinders.
Clamp the connecting rod in a vice with soft metal jaw pads.
Using your fingers, carefully (without applying much force) open the lock of the upper compression ring and remove the upper compression ring
In the same way, we remove the lower compression ring
Removing two oil ring discs.
Removing the oil scraper ring expander
To remove the piston from the connecting rod, use a screwdriver to pry the piston pin retaining ring and remove it from the piston ring groove.
In the same way, we take out the second retaining ring of the finger.
After moving the piston pin, we remove it from the hole in the piston.
Remove the piston from the upper head of the connecting rod.
If some parts of the connecting rod and piston group are not damaged and slightly worn, they can be used again.
Therefore, when When disassembling, mark the parts to install them in the previous cylinder.
Using a 17 mm head, unscrew the two bolts securing the crankshaft main bearing cover
Removing the main bearing cap
Remove the lower main bearing shell from the cover.
Remove four more main bearing caps in the same way.
Remove the crankshaft from the cylinder block.
Removing the thrust half rings from the grooves of the rear support of the cylinder block
We remove the upper liners of the crankshaft main bearings from the cylinder block supports
After disassembling the engine, we thoroughly wash the parts with gasoline and clean them from carbon deposits to check their technical condition.
We will consider the assembly of the engine in the article - "Assembly of the VAZ-21213, VAZ-21214 engine"