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so I changed my spark plugs...

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Old 07-02-2008, 06:01 AM
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Z_HighSpeed
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Default so I changed my spark plugs...

And they had OIL all over them...

Guess I need to replace my valve cover gasket ?

So what else should I do since I'm going under there anyway...

Plenum spacer? aftermarket valve cover gasket? best spark plugs? etc etc etc ?

looking for ideas...

thanks
Old 07-02-2008, 06:03 AM
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SOLO-350Z
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What side of the spark plug had oil? You only need to replace the O rings around teh spark plug holes and valve cover gasket if the side of the sparkplug that the coil pack attaches too had oil on it. If it is the electrode side, then you have more serious problems like Rings.
Old 07-02-2008, 06:04 AM
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http://www.rockauto.com/catalog/rafr...431964k1021480
Old 07-02-2008, 06:19 AM
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well this was the first time the car had the plugs replaced, it just hit 40k miles, it wasn't on the coil pack side, the other side which screws into the valve cover. but they were filthy and covered with oil...it could have just been 5+years of collection...we will see what happens when I drive around for a bit and check one or two of the plugs on each side to see if its just as bad.

I know I gata get the gasket, seals/rings...what else can I do since I'm under there.
Old 07-02-2008, 06:21 AM
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It's your tube seals on your valve covers which means replacing the valve covers would be the fix...

Some, including myself, have fixed it with RTV but it's at your own risk

It actually seems to be more common than I originally thought.
Old 07-02-2008, 06:22 AM
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change out your cams while ur there and buy the tomei cams fs..

BTW i hope you wiped down all the oil from the coil packs etc.. i found after i wiped them down then next time i checked they were completely dry..
Old 07-02-2008, 06:26 AM
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Originally Posted by Novesh
well this was the first time the car had the plugs replaced, it just hit 40k miles, it wasn't on the coil pack side, the other side which screws into the valve cover. but they were filthy and covered with oil...it could have just been 5+years of collection...we will see what happens when I drive around for a bit and check one or two of the plugs on each side to see if its just as bad.

I know I gata get the gasket, seals/rings...what else can I do since I'm under there.

It is not the Valve Cover gasket or the O rings for the tubes then. They are fine if you had no oil on the side where the coil pack goes. If it was on the conductor side like I said, then you have a serious problem which you can not just fix yourself and has nothing to do with the valve cover gasket or O rings.

Your engine has a problem with the Rings on the Pistons having blow by. You are probably using oil too.
Old 07-02-2008, 06:26 AM
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Originally Posted by blasian
It's your tube seals on your valve covers which means replacing the valve covers would be the fix...

Some, including myself, have fixed it with RTV but it's at your own risk

It actually seems to be more common than I originally thought.
It's not, re-read what he said and my reply.
Old 07-02-2008, 06:27 AM
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I figured it was a common prob most nissan's (i've owned a lot of nissans).

Tomei cams? errr....little too aggressive for a daily, I put some electric lube stuff, mechanic told me to, and I checked it yesterday when I got home, no oil on 3 plugs (didn't check the others).

how about plenum spacer...and aftermarket spark plugs? any good recommendations?
Old 07-02-2008, 06:28 AM
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Originally Posted by Jay'Z
change out your cams while ur there and buy the tomei cams fs..

BTW i hope you wiped down all the oil from the coil packs etc.. i found after i wiped them down then next time i checked they were completely dry..
Hahaha when I looked at everything that had been done to fix the problem I was like... CAMS
Old 07-02-2008, 06:28 AM
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Originally Posted by SOLO-350Z
It is not the Valve Cover gasket or the O rings for the tubes then. They are fine if you had no oil on the side where the coil pack goes. If it was on the conductor side like I said, then you have a serious problem which you can not just fix yourself and has nothing to do with the valve cover gasket or O rings.

Your engine has a problem with the Rings on the Pistons having blow by. You are probably using oil too.

I see what your saying, but the car doesn't burn oil. never has since I've owned it anyway....

Could it just be 5 years worth of collection? I mean the plugs weren't "soaked" with new oil, they were just black with a litttttle bit of oil on them.
Old 07-02-2008, 06:29 AM
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Originally Posted by SOLO-350Z
It's not, re-read what he said and my reply.
I don't see anywhere that says it can't be the tube seals

Like I said, it's a fairly common problem.
Old 07-02-2008, 06:30 AM
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Probably 5 years collection. I never let plugs go more then 30k miles even if they say 100k.

Sounds like you are fine then. No need to replace any gaskets then.
Old 07-02-2008, 06:31 AM
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Originally Posted by Novesh
I see what your saying, but the car doesn't burn oil. never has since I've owned it anyway....

Could it just be 5 years worth of collection? I mean the plugs weren't "soaked" with new oil, they were just black with a litttttle bit of oil on them.
Yeah, there is a gap between the tube seal and top of the valve cover and the oil will slowly overflow onto the coil packs and basically sits there.



This look familiar?

I actually ended up having to replace my gasket anyway.... there was an oil leak on the inner side of the valve cover that you can't see until you take the plenum off.
Old 07-02-2008, 06:31 AM
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Originally Posted by blasian
I don't see anywhere that says it can't be the tube seals

Like I said, it's a fairly common problem.
Hmm re-read his posts AGAIN. He said it wasn't on the side where the coil packs go. So it ISN'T the seals for the tubes. It is the threaded side with the conductor on it which is inside the chamber.
Old 07-02-2008, 06:33 AM
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Originally Posted by blasian
Yeah, there is a gap between the tube seal and top of the valve cover and the oil will slowly overflow onto the coil packs and basically sits there.



This look familiar?

I actually ended up having to replace my gasket anyway.... there was an oil leak on the inner side of the valve cover that you can't see until you take the plenum off.
Again, it isn't the coilpack side.
Old 07-02-2008, 06:33 AM
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@blasian, nah nothing like that...didn't see anything like that at all...like I said, I'm going to do it anyway, Im not paying for it so I am not worried, I just wana know what else I need to get...lol
Old 07-02-2008, 06:34 AM
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Originally Posted by SOLO-350Z
Hmm re-read his posts AGAIN. He said it wasn't on the side where the coil packs go. So it ISN'T the seals for the tubes. It is the threaded side with the conductor on it which is inside the chamber.
Ummm, so did I
Old 07-02-2008, 06:34 AM
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I gata roll to mma practice, I'll take some pix of plugs when i get home, thanks for the help guys

if ya can post up some good places to buy plenum spacer, good plugs, gaskets, etc etc etc, greatly appreciated!!
Old 07-02-2008, 06:35 AM
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Originally Posted by SOLO-350Z
Again, it isn't the coilpack side.
You're so smart


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