Spark Plugs & Lubrication: Copper Grease for Improved Conductivity? Tips & Discussions

Question

Hello. If I wrote in the wrong section, I apologize in advance and would like to be transferred. :) Do you use any lubricant when screwing in the candles? does it make sense to use it? I heard somewhere else that I lubricate the tip of the candles with copper grease for better conductivity. What...

bumble · Answer

I never smeared anything. However, if you are concerned that the thread will stick, you can use graphite grease, but at this temperature I do not know if it will do anything.

djramu · Answer

The spark plug thread must make good electrical contact with the engine block. It is one of the spark plug electrodes. I have never encountered a seized spark plug as long as it was tightened properly.

sanfran · Answer

The thread area is sufficient to dissipate heat. The whole problem with candles is the use of the correct tightening torque - specified in the vehicle manual. Typical 28Nm may seem like very little and a higher tightening torque may be used unknowingly. I recommend using a torque wrench.

g107r · Answer

Copper grease combined with an aluminum head can be a bad idea.

MrKillereq · Answer

And with cast iron?

andrzej20001 · Answer

Lubricate nothing, don't make it up. Tighten it and forget it

g107r · Answer

A drop of oil on the thread and screw it. Whether it will unscrew in the future will not depend on whether or not you lubricated it, but on the tightening force and how long it was. From the key you will be unscrewing. And then, look for and develop a topic about oxygen probe grease, candles, some invention based on porcelain - ceramic grease. I do not know anything about copper reacting with cast iron, as with aluminum, but you would have to read it, so as not to make yourself worse than with a dry thread. Fortunately, I do not have to wonder what and with what, for example specifics has arrived, this to this, that to another - higher physical and chemical studies have to be completed, so as not to blend in with advertising leaflets ...

andrzej20001 · Answer

I have been doing this for 30 years with Hook and it was not a coincidence. Open door balancing mixed with egg superiority over hen. Another internet inventions of dilettantes.

g107r · Answer

It's just like with me, once there were so many specifics only ŁT, graphite and oil. You learned to spin, and you could break something, with age it only breaks off on purpose. Now there are five hundred uses for rushes ... Well, there are ... Better to buy decent keys, so as not to be surprised how they will bend, break and break when unscrewing this or that. This can be seen much more often from this position of the internet dilettante

BANANvanDYK · Answer

I guess it depends on the engine or luck. In most cases, a black carbon deposit remains on the thread, which does nothing. In older engines, oil remains on the thread (because the engine is already burning it out or the spark plugs were loose). Sometimes the engine is so clean that the spark plug threads remain perfectly dry. Then it squeaks when unscrewing. Just like in my two-stroke (who would have thought it was so clean). In such cases, it is probably better to coat the thread of the candle with something?

MrKillereq · Answer

There are probably quite a lot of discussions about these candles on foreign forums, but it would take me a long time, anyway, this google translator has a lot to be desired. not something like soap like LT 43, but e.g. graphite, ceramic or what else can be used there.

andrzej20001 · Answer

Take the foot powder

MrKillereq · Answer

You are probably not suitable for a cabaret because I forgot to laugh.

andrzej20001 · Answer

A topic with a lot .. taken it and Christmas comments

Anonymous · Answer

Candle manufacturers advise you to lubricate the candle before screwing it in - but Polish engineering officers know better

sanfran · Answer

Really??? I recommend to download: Spark Plug and Diesel Glow Plug Catalog And there like a bull: I do not need to translate, do I?

Anonymous · Answer

You are brave brave that you went to so much trouble to check what one of the producers writes. Now check out the others as homework.

sanfran · Answer

Would you like Show off your knowledge

Macosmail · Answer

Candle threads are not lubricated, although if you do it, for example with ceramic grease, nothing will happen. On the other hand, the surface of the insulator is lubricated. This prevents sticking and detachment of the coil parts, and also seals and insulates electrically, which is very important. There are misfiring errors (puncture to the head), where the coils are replaced due to the lack of lubricant. Link

Eidems · Answer

Any cheaper replacement is available for this grease? It is quite expensive ...

MrKillereq · Answer

Macosmail and is it possible to use a copper grease? Better in a spray or in a container?

g107r · Answer

As a joke, you can. Copper grease, copper grease ... does it sometimes contain electrically conductive copper?

Eidems · Answer

The eLube company offers dielectric grease, it can be used for candles, cost 27 PLN / 60ml. Copper grease is not suitable for this ...

Macosmail · Answer

The most commonly available silicone grease will be the best.

wojciechjanusz · Answer

All threaded connections of two different metals, especially if one of them is aluminum, should be secured with white ceramic paste. Spark plugs too, many candle manufacturers recommend this. For brass sensors that are screwed into aluminum, this is almost always recommended by car manufacturers. It is similar with glow plugs in diesel engines. In general, in the case of connections of two metals, especially aluminum and brass (copper), there is electrocorrosion, degradation of the threaded connection and its seizure, as a result, when trying to unscrew the thread, the thread breaks. Ceramic paste protects against this quite effectively. The use of copper grease only worsens the situation. Likewise grease or oil. On the other hand, copper grease is perfect for steel / steel and steel / cast iron connections.

Eidems · Answer

It recommends and does not allow the use of any lubricants, it is always better to check it.

mmondik · Answer

This is definitely a bad idea. Please repeat the chemistry. And you should definitely read a lot on the subject. Added after 3 [minutes]: Dude, don't be silly! As a joke, someone told a friend to lubricate the squeaking blocks. You and someone are both very bad people !!!

MrKillereq · Answer

Haha, I've already trained a bit during this time and I know that you can't do it, but I must admit that this story about blocks is good :D In the past and even now, I really am that I wanted to deplete the power of the scooter as much as possible and I was looking for such a cool way to strengthen the spark here haha.

BANANvanDYK · Answer

This is what I am testing on the aforementioned spark plug threads. I'm more interested in how it can handle sticking screws in corrosive aluminum.

Spark Plugs & Lubrication: Copper Grease for Improved Conductivity? Tips & Discussions

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