THE ULTIMATE GUIDE HOW TO
If you do not intend to use spark plugs immediately after chemical treatment, process the metal parts of the product with WD40 and place them in plastic packaging. The fact is that some cleaning chemicals affect, in addition to soot, and on the constituent elements of parts, because of which they can form rust.
Spark plug - consumables, with one-time. If unscrewed, then it is better to screw in the new one already, the sealing ring is not designed for multiple unscrewing / screwing in, it is likely that it will penetrate. But, it’s only my own opinion. In case you interested in other ways to clean your spark plug, here you have it.
Spark Plug Cleaning Techniques
There are four ways to clean spark plugs:
Ultrasonic cleaning involves the removal of deposits on the electrodes by placing the spark plug skirt in a special bath with cleaning fluid, and exposure to it with ultrasound. This method has long been used at service stations for cleaning nozzles. Its efficiency is quite high, but the cost of such services often exceeds the cost of a new set of spark plugs.
Sandblasting equipment is used, the spark plug is fixed on a special bracket, and its working elements are exposed to a jet of air with fine particles of sand or other abrasive substances.
This technique is usually used if almost new spark plugs turned out to be poured during cold start. It is a pity to throw out, so they resort to dry them. There is two ways to do that:
Chemical cleaning is the only correct way to get rid of soot on the electrodes of spark plugs at home. It is absolutely not expensive, neither in time nor within its means. The essence of the method is in the effect of various kinds of chemicals on deposits.