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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Sharan (from 1995 to 2000, the year of issue)

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Volkswagen Sharan
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Volkswagen
Sharan
Introduction
VR6 engine
The two-liter engine (ADY)
Engine oil
Cooling
A fuel injection system VR6 engine
The system Simos injection 2.0-liter engine
The ignition system
General description and operation of the ignition system
The main system components plug
Precautions during repair work on the ignition system
Carrying out repairs and maintenance of the ignition system
The ignition distributor 2.0-liter engine
Adjust the ignition timing 2.0-liter engine
Spark plug
The appearance of the spark plug
Coupling
Manual 5-speed gearbox
The drive shafts
Power steering
Front suspension
Rear suspension
Brakes
Electrical
Diesel engine
The lubrication system of the diesel engine
The cooling system of the diesel engine
The power supply system of the diesel engine and turbocharger
Map service.
Applications
Wiring
 


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Spark plug






Spark plugs have a thread diameter of 14 mm. The manufacturer recommends a certain spark, but it is also possible to use candles and other manufacturers with the corresponding calorific value.
The distance between the electrodes of the spark plugs are presented in table adjustments and control.
Before you turn out the candles clean wells in which there are candles that after removing the candles in their holes to prevent dirt from entering. To remove the spark should only be used specifically for this purpose the key and HV wires from spark plugs to the VR6 engine can be removed only by special tool.
When working with the spark plugs, observe the following rules:
- When removing the HV wire from the spark plug, do not pull the cord but only the tip of the wire BH;
- After removing the candles put them in a series of cylinders;
- If, when removed, some baked onto the candle, do not use force, because you can strip the threads in the made of a light alloy cylinder head. In this case, as an exception, try to remove the candle, warming the engine up to operating temperature, observing precautions;
- Before installing new spark should wait until the engine cools down. Otherwise, the thread is tightened too much (due to thermal expansion of the material of the cylinder head);
- The spark plug should be tightened to 30 N ?· m (2.0-liter) or 25 Nm (engine VR6);
- If there is no torque wrench, then tighten a new spark plug wrench without effort so that the O-ring village into place, and then tighten it another 90 ?° spark plug wrench. If you install the old spark, then tighten them still around 15 ?°.
The maintenance schedule of the company ?«Volkswagen?» prescribes the replacement of spark plugs every 60 000 km or every 3 years. Even if the spark plugs are working without problems, they still should be replaced at the recommended intervals.
Adjusting the gap between the electrodes of the plug

The gap between the center and ground electrodes of the spark plug. The probe must be inserted into the gap between the electrodes
Fig. 224. The gap between the center and ground electrodes of the spark plug. The probe must be inserted into the gap between the electrodes





Before installing a spark plug, check and adjust the gap between the central and side electrodes (Fig. 224).
This operation must necessarily be carried out before winter operation of the vehicle. The clearance between the spark electrodes should be between 0.7-0.9 mm.
The operation of this gap is growing because of natural wear contact material. The increase in the gap leads to increased breakdown voltage, which is a violation of sparking and increased fuel consumption.
Check the gap between the electrodes should be with a round probe. Flat probe ignores the heterogeneity of electrode wear and can give a big mistake in the measurement gap.

Adjust the gap with a special tool
Fig. 225. Adjust the gap with a special tool





Increase or decrease the gap between the electrodes can only podgibaniem side electrode with a special tool (Fig. 225). To do this, put a hook on the side of the electrode tool and gently bend or straighten it.




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The appearance of the spark plug

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