 printable version
Spark plug
| Fig. 133. The control electrode gap of the spark plug by means of plate-caliber
|
| Fig. 134. Bending of the outer electrode with a special tool
|
Thread diameter 14 mm spark plugs. It is desirable to use recommended by the manufacturer suppositories, if necessary can be applied to the corresponding spark suitable heat range of other manufacturers. Since the construction of spark changes frequently, then, before you buy a new set, you should always contact the service center of Volkswagen, to learn the latest information on the admission of products for sale. Electrode gap (Fig. 133) candles see. In the appendix "Technical data and characteristics". To control the electrode gap of spark their manufacturers offer special probes. Select the desired plate size and insert it between the electrodes. If the distance does not meet the required, the use shown in Fig. 134 tool for bending the outer electrode. To do this, insert the hook into the electrode and gently bend it. Electrode gap should be brought to an appropriate value. When setting up the gap can not touch the central electrode as it can crack the porcelain insulator. Before you turn out the candles, you should check whether there is any foreign object into the receiving pocket. In case of contact with candles nest washers, screws, stones or other objects they can destroy valves, valve seats and cylinder head at the first start of the engine. In appearance the candle can be concluded about their suitability for further use of the injection system, the state of the fuel mixture and engine (pistons, piston rings, etc.).
| 
