Quick questions about replacing spark plugs and wires

[ace33joe]

I am planning to replace spark plugs and wires this weekends, and I have two questions about installing them.

1. Do I have to use anti-seize grease on the thread of the plugs? The service manual say nothing about it, but other car repair manual recommends using it. (Is there any chance that plug threads are pre-lubed?)

2. Do I need to apply silicon dielectric at the end of plug boots to prevent sticking?

Hope I can get some advice. :) Thanks!

[crctslt]

Neither are required.

[KevOVIII]

Using anti-seize on the threads of your plugs is a good idea if you'd like to be able to remove them easier next time.

[earlyapex]

You can do both although I never have in my life.
Make sure you don't cross thread them or tighten them too much, the head is aluminum.

Torque wrench would be nice for extra safety.

[dohcvtec]

I use the antiseize on my plug threads.

[MitsuMan]

it depend on your choice. both of those methods work well and are just for added safty out of the two I'd do the dielctric gel If had to do only one It promotes coog connection and protects against corrosion of the wire terminal makes it easier to reuse wires. the coils have the spring in them, well I've had Ford expeditions that would missfire for no reason and adding the gel really helps make a good connection with that spring thingy

[ace33joe]

Thanks for your advice, guys!

I will see how hard it is to remove stock plugs and wires, and then I will finally decide. :)

[Matz]

2. Do I need to apply silicon dielectric at the end of plug boots to prevent sticking?

Not sure about this one... I can see silicone being good for preventing sticking, but since dielectrics are awful conductors, I can't image putting any of that stuff where the wire is contacting the plug. Can anyone comment on this?

[Dr. Evo]

You generally but it inside the boot but not on the connector, so it keeps water out and allows for easier removal next time, but the wire design on the Evo doesn't seem to promote sticking anyway. I have never really used it. As long as you don't go years without removing the wires you should generally be ok.

[ace33joe]

As Dr.EVO said, dielectric silicon should not be on the conductor itself. :)

[wrx2evo8]

I did my plugs today.. replaced stock ones with NGK BPR7ES. The gap was good out of the box.. at about .027 (checked with thickness guage) I'll take a pic of the old ones later and post.. they had just almost 23k miles on them... I did use anti-sieze on the new guys.. the only thing that concerned me was that i torqued them with my caliberated elbow..nice and snug +alittle.. i think they're supposed to be torqued to like 18ftlb if i remember correctly..
Here's what mine looked like after 23857miles
http://img.groundspeak.com/track/374f1c1f-ebe3-4033-aad2-dcf00af32fd0.jpg
and
http://img.groundspeak.com/track/f2d98f37-17a6-4916-af1d-512852a3508e.jpg
p.s. it was only $1.89 per plug