Only for engines with a working volume of 1.3 l (contact ignition system (UKZ)
To adjust the breaker contacts, specialized workshops use a special measuring device. The advantage of this device is the ability to accurately adjust the angle of the closed state even with minor burning of the contact surfaces. To adjust, it is necessary to connect the device according to the instructions. The contacts can also be adjusted by measuring the gap between the contacts with a feeler gauge.
Checking the angle of the closed state of contacts using a device.
Connect the device according to the manufacturer's instructions.
Start the engine at idle speed and read the instrument readings.
The closed state angle should be 52°±6°. If the measured value does not match the specified value, the angle should be adjusted.
Adjusting the angle of the closed state of contacts using a device
Release the latches on the distributor housing and remove the cover.
Place the cover to the side so that any spark that might accidentally occur can be conducted through the ground and not transferred to the housing.
Loosen screw 2 without turning it out.
Set the gearbox to neutral. Engage the handbrake. Turn the engine over with the starter and adjust the closed position angle by moving the support plate.
If the angle of the closed state is too small, it is necessary to reduce the distance between the contact block and the distributor cams. If the angle is large, it is necessary to increase the specified distance.
Once the specified angle has been reached, tighten the fastening screws and check the angle again.
Let the engine idle and check the angle of the closed contacts again.
Adjusting the angle of the closed state of contacts with a feeler gauge
If a special device for adjusting the angle of the closed state of the contacts cannot be used to adjust the maximum contact gap with a feeler gauge, it should nevertheless be checked later with a special device.
Remove the distributor cap. Remove the rotor. Engage fourth gear and move the car on a level surface so that the plastic contact block is at the bottom point between the two cams of the distributor shaft.
Loosen screw 2 in Fig. G-1205 without turning it out.
Measure the gap between the distributor shaft and the plastic block with a feeler gauge. When the gap is adjusted correctly, the feeler gauge should fit tightly.
The gap should be 0.45 mm.
If the gap deviates from the specified value, adjust the closed state angle by moving the breaker support plate until the feeler gauge fits tightly.
After reaching the specified gap, tighten the fastening screw.
Note: Due to the insufficient accuracy of adjustment using a feeler gauge, it is necessary to adjust the angle of the closed state of the contacts using the device.
Install the runner in place. The runner protrusion should fit into the shaft groove.
Replace the cover and close the latch.
Adjust the ignition timing.