Does anybody know the name and part number for the Upper Plenum of the air intake. I'm going to change my plugs but I'm not sure that the gasket I have is the right one. (The guy at the parts counter wasn't too sure since they haven't done a spark plug change on a 3.5 Liter yet.)

I've got part 14032-8J105 Gasket-Adapter

Is it right? 2002 by the way

 

what do you need the gasket for changing the plugs?

 

The gasket can be reused over and over again unless you bend it up.

 

Why are you changing the plugs already?

Unless you've got nitrous, I doubt they need to be changed.

 

Oh yeah. That's a yes with the Nitrous. I'm asking about the gasket because it's usually good practice to change out gaskets anytime you remove one. The gaskets compress and deform so per chance you don't install everything exactly (and I mean with no measureable difference) you'll get a leak. And a leak on your intake manifold can spell disaster.

 

Call a Nissan dealer.

 

They were the ones behind the parts counter.

 

Good question, I have the same problem, was trying to change plus to iridium, but my shop say they need gasket, but none of the nissan guys know which gasket, cause they NEVER changed plugs on a 2k2+ before....and besides, it was such a PITA that they will not do it unless I was charged for 4-5 hours labor.

Please tell me if anyone successfully changed the plugs!
Peace!

 

4 to5 hours??? Holy crap thats a ripoff!!!! I bet I can do the whole dang job in under 30 mins.

 

I have had my upper intake off at least ten times and I am still using the gasket it came with. As I said earlier if you don't crease the gasket it will work just fine. NO LEAKS. Besides, the upper to lower gasket is made of steel with a rubber sealant.

 

Thanks everyone. I guess I'll just try to change the plugs and re-use the existing gasket. At that point I can also see if the one they gave me is right. Otherwise I can ride my motorcycle a while if things don't work out.

 

Well dude, you seem like the man to talk to, so mind giving details roughly on how to change the last two plugs by ripping the upper intake??
cheers

 

Remove the airbox and intake tubes from the throttle body. unbolt the small brackets the left side of the manifold (YOUR right when facing). 10mm socket

Remove the plug from the TB and the wire clip on it's bottom bracket without cutting it or unbolting the bracket.

Remove the vacuum line from just behind the TB which you can see from the front.

Remove two larger vacuum lines from the right side/back of the intake manifold (YOUR Left when facing).

Remove the wire bracket from the same location that has two plugs on it. 10mm socket.

Remove the two 12mm bolts from the back of the elbow that connect it to the support bracket. These are NOT the ones that connect it to the plenum and are not visible. If you can see bolts you're probably not dealing at the right ones. You can reach them with a 0º box end wrench, or a socket wrench. I prefer a box end ratchet. Find them by holding your hand near the middle of the elbow athen slide down to the bottom where you cannot see. Get to them from the left side of the car (Your right when facing).

Remove the two 12mm nuts from each side of the intake manifold. Then remove the three 12mm bolts from the front of the intake manifold.

There is no need to separate the elbow from the upper manifold. That is a complete waste of time and a PITA to reassemble if the manifold it still on the car.

Total:

1 Small Vacuum line
2 Larger Vacum lines
5 10mm bolts holding the airbox
3 10mm bolts holding brackets
2 12mm nuts
5 12mm bolts



I am pretty sure I didn't leave anything out but this is entirely from memory and my brain barely has enough power in the morning to drive me to work.

 

F-that! I'm never changing my plugs.

 

You the man........
but Damn...will print it out and figure it out, pretty nasty if you ask me. U must be very experience with this..

Thanks again mate.

 

Its easy to change te plugs. Its really not difficult. Simple take a few clips and bolts off. Once you get under the hood, you will understand it for yourself