car GAZ-2705
The ignition system - battery-operated, contactless - consists of an ignition coil, a switch, an ignition distributor sensor, spark plugs, spark plug tips, low and high voltage wires. The ignition system diagram is shown in the car electrical equipment diagram
A pressure reducing valve is a container separated by a diaphragm on which a valve is attached that closes the fuel drain hole under the action of a spring
The thermal gap between the valves and rocker arms is adjusted when repairing the cylinder head
Also when there is a knocking sound in the area of the valve cover