Do not use anti-seize or lubricant on
Just about every spark plug manufacturer will recommend against putting any lubrication on spark plugs. NGK spark plugs, AC Delco, Champion, Bosch, Denso, and more all say to avoid it.
NGK does not recommend the application of lubricant such as copper grease to spark plug threads as the result is a reduction of frictional forces at the thread faces. This will render the torque readings inaccurate and over tightening could occur by up to 20 percent!
Do not use anti-seize as a lubricant such as on caliper slide pins or on threads for a bushing press or any mechanical assembly that requires a lubricant. Do not use anti-seize on exposed threads because the compound can attract contaminants that may contribute to thread damage when the fastener is removed.
Anti-seize can not be applied on already damaged or cross threaded threads of bolts. The threads need to be chased, re-tapped or repaired before applying anti-seize. Don't use anti-seize on exposed threads as it may attracts contaminates that may contribute to thread damage.
Lubricate Spark Plugs & Other Parts
For part of your car repair and maintenance, you can use WD-40 to remove carbon residue, and keep moisture away from spark plugs and spark plug wires.
Dielectric grease is a simple compound of oil and silica filler that's very hydrophobic and is excellent at sealing out moisture and preventing corrosion.
Using anti-seize on spark plugs installed in aluminum cylinder heads was very common as the steel shells would seize in the aluminum. No longer necessary as modern spark plug coatings work as a releasing agent and should be installed dry.
As much as 90 percent of the torque applied to a fastener is used to overcome the friction of the interfacing surfaces. When applying an anti-seize to your components, the torque value to achieve the same clamp load will be lower.
Yup, grease won't hurt anything if you use them on a few bolts. May not be the optimal thing but it's a bicycle after all. Don't use anti-seize in bearings. You can unstick a stubborn fastener that has LocTite with a lil heat from a heat gun.
If antiseize compounds come in contact with the core nose of the plugs, it can lead to a misfire condition. Antiseize compounds can also have a torque multiplying effect when installing plugs. This can lead to thread distortion and thread galling, resulting in cylinder head damage.
Typically, copper-type anti-seize has a higher temperature tolerance than aluminium - about 1000 degrees C for copper and 850 for aluminium.
It is mandatory to maintain a balanced spark gap between the two electrodes. A short gap can weaken the spark plug and a wider gap might prevent the spark from firing at all or may misfire at high speeds. Before creating a balanced gap between the electrodes, refer to the user's manual for a balanced figure.
A wet spark plug can be the result of the engine flooding. Flooding is what happens when you try to start the engine several times without it firing up. You can clean the spark plugs or you can just wait for them to dry out.
Because it's fast-drying and leaves no sticky residue, WD-40 Specialist Contact Cleaner is great for use on circuit boards, switches, spark plugs, and tape heads, removing any oil, dirt, dust or flux residue that cause current leakage and component failure, and protecting against condensation in damp conditions.
Grease. Lubricating Oil. Soft soap/White petroleum jelly/Vaseline.
Anti-seize acts as a (poor) lubricant, so you will overtorque the plugs as you tighten them. Overtorquing can lead to distortion of the plugs and possibly to damage of the cylinder head's internal threads.
Copper-Based Anti-Seize Lubricant
Its applications are suited for general purpose use for assemblies such as brake caliper bleed plugs, pipeline fasteners, spark plugs, conveyor bushings, wenches, keyways, gears and more. It is versatile as it is compatible with all types of metals.
Utilizing the correct and best anti seize compound for exhaust manifold bolts can be an excellent way to prevent seizing, galling, and corrosion in areas that are regularly exposed to high temperatures.
Never-Seez Regular Grade Lubricating Compound is a superior, anti-seize and extreme-pressure lubricant formulated to protect metal parts against rust, corrosion and seizure. Copper and graphite particles in special grease protect parts even in high-heat, high-pressure and corrosive environments.