Disconnect the wire from the negative terminal of the battery

Loosen the clamps and disconnect hoses 1 and 2 from regulator 5.

Disconnect the block with wires from connector 4 of the regulator.

Replacing the idle speed control ZMZ-406

Unscrew the two mounting bolts 3 and remove the regulator.

Remove regulator 5 from clamp 6.

Install the new idle air control in reverse order.

Checking the secondary air regulator

Turn off the ignition and remove the negative terminal from the battery.

Replacing the idle speed control ZMZ-406

Using an awl or a thin screwdriver, unclip the block clamp and disconnect the regulator connector.

Replacing the idle speed control ZMZ-406

Using an ohmmeter, we measure the resistance of the two windings of the regulator, for which we connect one probe of the device to the central terminal, and the other, alternately to the outer terminals.

In a working regulator, the resistance of each winding should be in the range of 10–14 Ohms.

Replacing the idle speed control ZMZ-406

Having removed the regulator from the engine, we put a piece of PVC tube onto the central terminal and insert the end of the bare wire into it.

Replacing the idle speed control ZMZ-406

Connect the central terminal with the positive of the battery, the negative - alternately with the outer ones.

In one case the damper should open completely, in the other it should close

If this does not happen, lightly shake the regulator to ensure that the valve is not stuck.

We replace the faulty regulator.

Removing the secondary air regulator

Replacing the idle speed control ZMZ-406

We loosen the clamp with a screwdriver

Replacing the idle speed control ZMZ-406

Remove the air supply hose.

Replacing the idle speed control ZMZ-406

Use a screwdriver to loosen the lower hose clamp.

Replacing the idle speed control ZMZ-406

Using a 10mm wrench, unscrew the two bolts securing the regulator to the intake system receiver.

Replacing the idle speed control ZMZ-406

Remove the regulator assembly with the bracket by removing the lower pipe of the regulator from the hose.

Replacing the idle speed control ZMZ-406

Remove the steel clamp and rubber tube from the regulator.

Replacing the idle speed control ZMZ-406

Install the regulator in reverse order

During installation, we are guided by the diameter of the regulator pipes - the supply pipe is larger and should be located on top

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 "