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DIY: Replace Valve Cover Gaskets

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Old Aug 5, 2013 | 07:35 AM
  #61  
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the spark plug tube o rings on the 350z are not replaceable. I don't know what that kit is for.
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Old Aug 5, 2013 | 08:06 AM
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Originally Posted by Touge Z
the spark plug tube o rings on the 350z are not replaceable. I don't know what that kit is for.
How can you say they are not replaceable if R&D used "unknown" grommets to replace the ones on the valve covers? Maybe nissan calls them non replaceable but its not like they are physically bonded to the cover...

From what I can see (which is why I posted a pic) that particular set from that company comes with a grommet set. So if R&Ds instructions called for drilling a hole in the baffle to fit a larger grommet, I will probably do more searching and pick up that B/A kit and see if the grommets fit. All I know is there is no way in F#@$@ hell I am paying 500 bucks because a 2 dollar part failed....
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Old Aug 18, 2013 | 12:11 PM
  #63  
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Well I fail at life. Lol so I'm changing my vcg today, and I saw how different the stock spark plug gaskets are. They differ by about 1 mm from the one I got for the "vq35de". So I put the old seal back and sealedit with vrt gray. Looks awesome but lets see if it will hold, that was leaking anyway so I don't think it couldbe wworse. I will be getting a used valve cover and swap it out if this leaks. I also saw my valve civer breather tube was broken, so I'm going to replace mine, maybe AutoZone has hoses.
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Old Aug 18, 2013 | 03:54 PM
  #64  
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don't know why you went through all that trouble when clearly they're not replaceable.
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Old Aug 18, 2013 | 04:34 PM
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It wasn't that much trouble TougeZ, I needed to change the cover gaskets anyhow, so it only took maybe 20 more minutes to open the hole and remove/ inspect the leaking seal. The seal I bought matched 80% but it was about 1 mm short on outside lip diameter so it did not fit exactly. So I took the old seal and sealed it in the valv cover with rvt. The worse that could happen is the seal leaks, which just means I have to do the work again, which to me isn't that big of a deal. I made a video of my work and I will be making a thread tomorrow for it. I am sure it will help someone. Also now that I took the measurements of my seal I can go ahead and find an exact one, becauseif R&D can sell them from nissan, I can find em.
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Old Aug 18, 2013 | 04:57 PM
  #66  
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Please link us to the work/vid/info when it's up, we appreciate it.
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Old Aug 18, 2013 | 05:02 PM
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You bet! I will compile it tomorrow
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Old Aug 19, 2013 | 04:04 PM
  #68  
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GUYS! The thread is up! the video is rather long so it might take a while for youtube to process it! hopefully they wont block it for some background music LOL

https://my350z.com/forum/maintenance...r-gaskets.html
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Old Sep 7, 2013 | 05:35 PM
  #69  
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Just an update. I do not have a trace of oil in my spark plug tubes since I did the permatex fix; it's been about 5k miles.

If you don't have leaking at the valve cover itself, this is the way to go IMO.
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Old Sep 8, 2013 | 01:11 AM
  #70  
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More people should do the permatex way if you just have a spark plug tube leak. It's much easier than valve covers. If done right, it's actually a permanent fix.
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Old Sep 8, 2013 | 06:36 PM
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Update, I took a look at the valve cover today. NO OIL in the tube with the RVT sealer (Gray) been driving around 500 miles for the last couple weeks on it
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Old Sep 8, 2013 | 07:17 PM
  #72  
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Good to hear go7roo7. The only hard part applying the rtv is the little space you have to work with.
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Old Sep 8, 2013 | 07:22 PM
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It's not really that bad, after I opened up the hole using the hole saw, I generously applied the rtv to the inner \/ part of the seal and the inside of the seal seat on the valve cover. I pressed it in place then added some more rtv on the outside. Then I left it out to air dry for 24 hours. If properly cleaned and degreased, there is no reason for it to leak. Plus it beats swapping covers.
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Old Mar 17, 2014 | 11:55 AM
  #74  
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You guys use loctite on valve covers bolts? Blue or red, if so?

Thanks
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Old Mar 17, 2014 | 12:29 PM
  #75  
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Originally Posted by eZg
You guys use loctite on valve covers bolts? Blue or red, if so?

Thanks
That's a negative Ghost Rider.
FSM doest call for it, and personally I would not risk stripping the bolts ( or damaging the threads on the head) to apply loctite. BUT! if I had to use it, I would use BLUE, never Red.
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Old Mar 17, 2014 | 12:53 PM
  #76  
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Thanks....I wish I had the patience to watch your video...but didn't. Forgot locktite AND fricking RTV in front corners.

Going to try it and see.

Thanks for your response.
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Old Mar 17, 2014 | 01:00 PM
  #77  
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Originally Posted by eZg
Thanks....I wish I had the patience to watch your video...but didn't. Forgot locktite AND fricking RTV in front corners.

Going to try it and see.

Thanks for your response.
No prob . I have had people tell me my videos are too long, but honestly I would rather explain things in detail, instead of having people complain that I did not mention it, or that I was not clear.
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Old Apr 12, 2014 | 04:41 PM
  #78  
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ok so I did my valve cover gaskets today and my sparkplugs because I didn't know when the last time they where changed. While doing this I did pull off both cam actuators. Car ran perfect before doing this
Im now pulling codes
p0300 Random Multiple Cylinder Misfire
P0011 cam position actuator a-bunk 1 timing over-adv
P0021 cam position actuator a-bunk 2 timing over-adv

Any Thoughts?
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Old Apr 13, 2014 | 07:57 AM
  #79  
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Originally Posted by lilgsxr1000
ok so I did my valve cover gaskets today and my sparkplugs because I didn't know when the last time they where changed. While doing this I did pull off both cam actuators. Car ran perfect before doing this
Im now pulling codes
p0300 Random Multiple Cylinder Misfire
P0011 cam position actuator a-bunk 1 timing over-adv
P0021 cam position actuator a-bunk 2 timing over-adv

Any Thoughts?
Did you buy pregapped spark plugs? Did you check the gap before installation? Did you use a torque wrench?
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Old Apr 13, 2014 | 11:30 AM
  #80  
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Ironic. I just did my other valve cover gakset bank 2. I used some tinyRtv under and over on the actual gasket bc I was getting a leak. Mine are L-FB rebuilt covers w brand new gaskets. Didnt read entire thread but I would def add a little rvt or gasket stuff to be safe as you're in there unless you wanna dig back into it like I did.
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