Adjusting the ignition timing

The ignition timing is adjusted at idle speed. The idle speed and ignition timing values are contained in the sizing and adjustment tables. The gearbox, regardless of design, must be installed in the neutral position. The crankshaft pulley has a notch on the edge, which, when adjusted correctly, should coincide with the mark on the ignition adjustment scale. The adjustment is different on all engines.

Engine 1.6 l

• Warm up the engine to operating temperature and connect the speed meter in accordance with the manufacturer's operating instructions.
• On a gasoline injection engine, disconnect the connector shown in Figure 151 and jumper the terminals "T" And "E1".

• On a carburetor engine, disconnect the vacuum hose from the distributor diaphragm and close the end of the hose accordingly.
• On a carburetor engine with a catalyst, set the octane corrector to the correct position. To do this, remove the cap and set the button on the distributor to the SUPER position (red mark) (pic. 152). Reinstall the cap. When setting the octane rating in this way, use unleaded gasoline with an octane rating of 95 or higher. If the octane number switch is switched to the blue mark (normal gasoline), use unleaded gasoline with an octane rating of 91 or higher.

• Connect the strobe light according to the manufacturer's operating instructions and aim the light beam at the edge of the crankshaft pulley.
• Check with the engine running at idle speed whether the notch on the pulley coincides with the corresponding scale division on the timing cover (Pic. 153).

• On a carburetor engine, connect the vacuum hose to the ignition distributor. Check the ignition timing again. When the vacuum hose is connected, the ignition timing should be 12-18°. The radiator fan should not turn on.
• If adjustments are required, loosen the ignition distributor bolt and turn the distributor.
• Tighten the bolt and check the ignition timing again.
• On an injection engine, remove the jumper and connect the connector.

Engine 2.0 l

• Warm up the engine to operating temperature and connect the speed meter in accordance with the manufacturer's operating instructions.
• As shown in Figure 144, bridge the terminals to complete the circuit.
• Let the engine idle (automatic transmission gear selector in position "N"), connect the strobe in accordance with the manufacturer's operating instructions and direct the light beam to the edge of the crankshaft pulley, as shown in Figure 153. If the mark is difficult to see, draw a line with chalk on the cut, and check the ignition timing again.
• If the ignition timing does not correspond to the values given in the table of sizes and adjustments, loosen the two screws of the ignition distributor and turn the distributor. By lightly tapping the handle of the screwdriver, you can turn the distributor in small portions.
• Tighten the ignition distributor and check the ignition timing again as described above.
• Remove the jumper from the terminals "E1" And "T" and close the lid.
• Start the engine again and check the ignition timing again. It should now be 14-19°before TDC. The radiator fan should not turn on. With the catalyst installed, the ignition timing should be 13-22°. Both values are given for the engine running at idle speed.