Do you need lubricant for spark plugs?
It’s very important not to over or under tighten spark plugs during installation. … If your engine has the more modern ‘COP’ system (coil-on-plug) then lube the spark plug boot with dielectric grease, this helps prevent misfires and makes removing easier in the future.
Should you use anti-seize on Bosch spark plugs?
For Landfill applications, anti-seize is highly recommended. Bosch recommends Loctite Heavy Duty Metal Free anti-seize part number 51605. When applying anti-seize, only put a small amount at the base of the spark plug as shown.
How tight should I tighten my spark plugs?
Confirm that the thread reach of the spark plug is the right one for your engine. Remove the dirt at the gasket seal of the cylinder head. Tighten the spark plug finger-tight until the gasket reaches the cylinder head, then tighten about ½ – ⅔ turn more with a spark plug wrench.
Can you use wd40 on spark plugs?
Using WD-40 to repel water from spark plugs, distributors, alternators, and batteries is a good way to prevent corrosion and keep moisture away. You can also use it to ease the removal of spark plugs, especially if there is any rust or corrosion.
Do NGK Iridium plugs need to be gapped?
In most cases your Iridium Power plugs do not need to be gapped. … Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center.
What should you not use anti-seize on?
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.
Do I need to disconnect battery to change spark plugs?
It’s also good practice to disconnect the negative terminal of your car battery when working on anything electrical. Be sure to let your car’s engine cool thoroughly before replacing your spark plugs. This will make removal of the plugs and the spark plug wire or ignition coil boot easier.