At the engine mod. 406 the oil pump is driven by an intermediate shaft, for engine mod. 402 the pump and ignition distributor are driven by the camshaft
On engines mod. 406, filter 2101-1012005 is used, installed at the bottom of the cylinder block on the right side.
In order to replace the filter, you need to unscrew the old filter and screw in the new one.
Put a waste oil container under the crankcase
Unscrew the plug and drain the oil from the crankcase
Compression (pressure at the end of the compression stroke) in the cylinders is the most important indicator for diagnosing the condition of the engine without disassembling it
You will need: a hex wrench “6”, heads “12”, “13”, “14”, a small chisel, a hammer
Drain the engine oil and coolant, remove the mudguard and accessory drive belt
The piston of the 1st cylinder is set to the position of the top dead center (TDC) of the compression stroke so that when carrying out work related to the removal of the timing chains, the installation of the gas distribution phases is not disturbed
Removal, repair and installation of camshafts ZMZ-405, ZMZ-406
Remove the tips of the spark plugs together with high-voltage wires, ignition coils (you can only disconnect the connectors, leaving them on the valve cover),
If the gasket is leaking, the exhaust gases break out, accompanied by a characteristic sound (“cut” collector)
Replacing the oil sump seal ZMZ-406
If an oil leak through the oil pan gasket cannot be eliminated by tightening its fastening bolts, it means that the gasket is severely deformed and must be replaced
Replacing the front crankshaft seal
A sign of the need to replace the front crankshaft oil seal is an oil leak through its edge
Replacing the cylinder head gasket ZMZ-406
The cylinder head gasket is replaced if it is damaged
Replacing the cylinder head cover gasket ZMZ-406
Over time, during operation, the gasket under the engine head cover loses its elasticity and strength and oil leaks from under the cover
Removal, inspection and installation of the ZMZ-406 flywheel
The flywheel is removed to replace the rear crankshaft oil seal, to replace it if the toothed rim used to start the engine with the starter is damaged, and to grind the surface under the clutch driven disc
Since the hydraulic tensioners keep the chains constantly taut, regardless of chain stretch or shoe wear, there is no need to adjust the chain tension during operation
The engine is in-line four-cylinder, equipped with an integrated microprocessor-based fuel injection and ignition control system (KMSUD).
Replacing hydraulic pushers in the ZMZ-406 valve drive mechanism
Repair of intermediate shaft ZMZ-406
The intermediate shaft drives the oil pump
Defection and repair of the ZMZ-406 cylinder block
To determine the technical condition and repair of the cylinder block, remove the engine from the car and disassemble it