What's the proper way to grease the plug boots?
Thanks, MB

 

what kind of ignition system? or what year and engine?

 

For spark plug wires just put a dab in the end and install on the spark plug.

For COP boots pull the boot off gently without trashing the spring inside and shoot a bunch in there. Take a small screwdriver and smear it around so it covers the whole inside of the boot. I added another little dab at each end and installed the boot back on the COP.

 

Dielectric means a non conductor of electricity. In the application such as the spark plugs, it is used to seal out moisture/water and to limit corrosion caused by moisture/water. This is why it's used on yer Triton. I put it around the insulator of the plug before slipping the COPS on the plug to limit the grease from being in the circuit of the coil wire and plug. Cleanup is with WD-40.

 

hmm....i didn't use the dielectric grease on my plugs when i changed mine, about a year and a half ago, about 30k miles. and havent had any problems with them..yet

 

Matt, I have a 2004 4.6L

Grizz, you say to get it into the boot, while Labnerd puts a little on the porcelain of the plug....A little confusion here...??

...I think Lab's is the right way....
Maybe some others will chime in...

Is Di-electric grease the same as No-Ox, the anti-oxidation compound us electricians use when working with aluminum wire?
If so, the No-Ox is 10x less expensive.

 

Try a search. I think you will find that most members use "more" rather than "less" as the COP boots are prone to moisture and arcing inside the spark plug hole.

 

I don't think so. No-Ox (I use Penetrox, same thing) is a conductive grease. Penetrox is used on bus bars, aluminum wire connections, and in connections that may be exposed to weather/humidity to prevent oxidation.

Dielectric grease is an insulator, No-Ox and Penetrox are conductors.

That would probably be really bad on COP boots.

 

Labnerd....a follow-up question,
Doesn't the grease get pushed off the porcelain part of the plug by the rubbery "grip" part inside the spark plug socket?

 

It's ok if the grease gets pushed down off the porcelain part of plug by the boot. Just make sure you don't have any grease on the spring connection to the top of the plug. Other than that, smear that grease all over. Hit all the joints where water could penetrate down thru the boot and inside the boot. What I read on here from others and did when I changed my plugs was to squirt a good amount into the boot, spread with a screwdriver then insert the coil & spring. Pull the spring past the end of the boot and clean ALL the grease off the end of the spring then install (use carb cleaner or electronic cleaner to remove all residue). I also put just a little on the outside of end of the boot.
I don't know if the grease is NECESSARY, but with the problems water can cause if it gets into those boots, it's a good practice.