If there is a loss of power, increased fuel consumption or increased oil consumption, it is necessary to check the compression in the engine cylinders
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
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
Synchronization sensor - inductive type (2612.1.113 Bosch or 406.3847113) is installed on the front end of the engine at the bottom, on the right side and is designed to synchronize the operation of the control unit with the engine workflow
Ignition coils are designed to generate high voltage electric current to ignite the working mixture in the engine cylinders
Replacing hydraulic pushers in the ZMZ-406 valve drive mechanism
The camshaft position sensor (0232103006 or 406.3847050-10) is installed in the end of the cylinder head on the left side of the flywheel
The VAZ-21126 engine is installed on different types of cars.
Let's consider the removal of the cylinder head on the example of the Lada Priora car.
When the ignition is switched on, the indicator lamp lights up (for 0.5 s) and goes out if the self-diagnosis system has not detected a malfunction
Remove the cylinder head
Remove the crankcase and crankcase gasket
The microprocessor ignition system is designed to ignite the working mixture in the engine cylinders by setting the optimal ignition timing for a given engine operation mode
Reduce the pressure in the fuel system if the engine has just been stopped
Disconnect the wire from the "negative" terminal of the battery.
Repair of the cylinder head is carried out during general engine repairs and when replacing the cylinder head gasket
Pressure reduction in the supply system
Remove the No. 9 fuse (fuel pump fuse) from the right fuse box.
Disassembly of the engine is presented in the article - "Disassembly of the VAZ-21126 engine"
After disassembly, thoroughly clean, rinse and dry all parts
Draining sediment from the fuel coarse filter, washing the filter
Unscrew the drain plug 6 (Fig. 1), drain the sediment from the filter.
