Verification Requirements
1. The engine must be cold (ambient temperature), the battery is fully charged: voltage >11.5V.
2. Disconnect the contact cable and glow plug bar.
3. Connect a voltage tester or a low wattage light bulb to the positive pole of the battery and in series to each glow plug.
4. If the LED lights up, the spark plug is good.
5. If the LED does not light, the spark plug is defective and needs to be replaced.
Note: The tightening force must not exceed the specified value, otherwise the ring between the heating element and the threaded part of the candle will be overtightened and the candle will fail prematurely. If the tip of the spark plug is burned, see the instructions.
6. Connect the cable terminal to the busbar.
7. Connect the cable to the temperature sensor.
Checking the glow plug relay
8. Turn off the glow relay.
9. Connect a tester or voltmeter to terminal 30 and ground.
10. Turn on the ignition. The LED should flash, otherwise check the battery voltage.
11. Connect a tester or voltmeter to terminal 86 and ground.
12. Turn on the ignition. The LED should flash, otherwise check the voltage of the ignition switch. If the LED is on, check the glow plug wires for a break, if necessary, replace. Otherwise, replace the glow plug relay.
Burnt tip candles
13. A burnt tip is usually the result of injector failure. Such malfunctions affect not only the operation of glow plugs.
14. If a burnt candle is found (see arrow in fig.), It's not enough just to replace it. The injectors should be checked for patency, rattling, opening pressure, tightness.
15. It should be remembered that with a short, fast piston stroke (4-6 strokes/sec) there is no jet, it is sprayed.
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