Spark plugs torque specs

[BCpathy]

Hello my fellow pathfinders

I bought new spark plugs and am putting them in the coming weekend. Haven't gotten the service manual yet. Could one of you please let me know, what the torque specs for the upcoming job are.
Not sure if I'll take off the intake plenum. Might try without doing so first. But I guess it won't hurt to know the specs for all the screws on that one too.

Thanks in advance

[eieio]

service manual: http://www.thenissanpath.com/filelib/R5 ... ce/fwd.pdf

[BCpathy]

Thank you man. Really much appreciated

[eieio]

Thank you man. Really much appreciated

you're welcome!

[dawgn86]

it is a pain, but can be done without taking off the intake

[smj999smj]

Having to take off the upper plenum would be a good excuse to put in an XTP intake spacer!

http://extremetruckperformance.com/

[hesham1]

I don't mean to take this thread off topic but I wasn't sure this question warranted starting a new topic...

What is the correct NGK spark plug for the 2008 V6 Pathfinder? When I search online I see two or three different kinds. Which is the best? Thanks

[smj999smj]

Up through 2007, the original equipment plug was NGK Laser Platinums #6240 (PLFR5A11). In 2008, they started using NGK OE Laser Iridiums #93759 (DILFR5A11). Both called for 105,000 mile spark plug intervals and both work just fine in any year of the R51 V6 models. Iridium is a denser material than platinum, which is a better conductor, but the OE Laser Iridiums are also more expensive than the Laser Platinums.

[hesham1]

thanks smj, so would you save a few bucks and go with the platinum, or go all out on the laser iridium?

[smj999smj]

It's really up to you, but I replaced the factory Iridiums in my 2008 with the Laser platinums and I didn't notice any difference. I think the 105,00 mile interval is a little conservative on the Iridiums and I could see putting 120,000 miles on them with no problem.

[disallow]

SMJ, since Iridium is more brittle than platinum, is it possible that the time difference between having a good plug and a failed plug is shorter? Whereas failure with a platinum plug would be more gradual?

Just pulled the plugs out of my 99 accord last week. They looked decent, but very worn. These were NGK G-Power Platinums. I bet they were original, and the car has 205k kms on it. (127k mi). The reason I say that is that the timing belt looked like it was original too, so it doesn't look like this car was maintained very well.

[smj999smj]

I'm not sure what you mean by "fail more gradual." To me a "failure" is when the spark plug has a manufacturer defect, as oppose to a plug that is simply worn out because they have been used past its recommended service interval. Having worked 16 years for Nissan as a tech along with a number of years working for other shops, I have replaced an awful lot of NGK spark plugs and have only found one that actually "failed." It was a 95 Maxima and it was misfiring; it turned out the porcelain was cracked. I recall once working on a Mercury Villager with the Nissan VG engine and it had the original 30,000 mile NGK copper plugs in it at 148,000 miles and was still running well, albeit VERY worn (you could tell the original plugs on these as they were imprinted with both "NGK" and "Motorcraft" on them).
NGK makes the AC Delco iridium spark plugs and they have 120,000 mile service intervals on them, which is why I say, based on that fact and seeing what my plugs were like on my 08 Pathy, that they would probably have no problem going 120,000 miles on the NGK OE Laser Iridiums.
NGK G-Platinums, as are Iridium IX plugs, are NGK's economy line of platinum and iridium plugs, respectively, and to my knowledge do not come as original equipment on any vehicle. They are single platinum or iridium plugs that have a service interval of 60,000 miles.

[dawgn86]

I replaced the plugs in my 06 with the ones listed in my owners manual; imagine it was the original ones.

mine had 125k on them, but the PF was still firing up and running good.

[jmooresh]

A note from a mechanic:

Use a magnetic spark plug socket wrench!
And apply anti-seize to the spark plugs.

There have been cases of the new spark plugs being damaged by the foam/rubber spark plug sockets!!!

[smj999smj]

NGK doesn't recommend using anti-seize or any other lubricant to their spark plugs. They are already coated to prevent corrosion and they say that anti-seize will affect the accuracy of when you torque them.