VQ35DE Valve Cover and Gasket Replacement How-to
Well, finally got this done last weekend. First noticed oil in my spark plug chamber, #5, closest one to the driver's side, rear. Was fairly straight-forward, just use common sense.
I used this write-up for the IM removal, Greg's How-To. I have added a write-up from this point forward. I realize once you pull off the IM that the valve cover removal is pretty easy, but I hadn't seen a write-up for the valve cover change and thought I would make one up for people who are a little more apprehensive about their first time or just simply want a guide. Valve Cover and Valve Cover Gasket Replacement I have hi-res pics available for anyone that wants more detail. Just let me know. All products were purchased from Dave B. No problems and great service. FYI, the new valve cover comes with a PCV valve. Additionally, I did order the 2004 valve cover and gasket, much cheaper. :doublethu |
I did this a while ago as well. Piece of cake and like you mentioned, the IM is not as bad as people make it sound.
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No, I have done the IM twice now and it is pretty cake.
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i wonder if doing this will help the people who have oil burning issues?
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Damm i thought i was the only ona that had this.
I got the same thing on the cylinder closest to the firewall and the throttle body. Plan to do it sometime this month. Am I causing more damage by putting it off? |
Originally Posted by maxspeed96CT
Damm i thought i was the only ona that had this.
I got the same thing on the cylinder closest to the firewall and the throttle body. Plan to do it sometime this month. Am I causing more damage by putting it off? I don't think anyone has a firm idea if putting it off will do more damage. I put mine off for a year after I changed the plugs. Who knows how long it was going on before then. |
i got both my valve covers changed under warranty for my oil burning issue...didnt help.
good write-up and great pics |
well it wouldn't, would it? That's not the problem. And as long as the oil doesn't have water in it, it won't do any damage to the coil.
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Great write up.
I was looking into getting the parts but on the website theres the right and left. Which one did you get? Part #? Also did you do the rear or just the front? |
Originally Posted by inspiredbykev
Great write up.
I was looking into getting the parts but on the website theres the right and left. Which one did you get? Part #? Also did you do the rear or just the front? |
Originally Posted by inspiredbykev
Great write up.
I was looking into getting the parts but on the website theres the right and left. Which one did you get? Part #? Also did you do the rear or just the front? |
Nice write up.
I inspired you? :noes: |
Originally Posted by Kevlo911
Nice write up.
I inspired you? :noes: What?? |
Originally Posted by inspiredbykev
Great write up.
I was looking into getting the parts but on the website theres the right and left. Which one did you get? Part #? Also did you do the rear or just the front? |
Originally Posted by Epacy
If you do the rear, remember you don't have to be a PCV valve.
You mean BUY right? |
Originally Posted by realtor
You mean BUY right?
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Bump because I noticed this about 2 months ago but never had a chance to do anything:
http://i11.photobucket.com/albums/a1...isc/Oil002.jpg http://i11.photobucket.com/albums/a1...isc/Oil003.jpg Pretty sure that is oil buildup under my front valve cover. Seems that most of you are having issues with the rear valve cover. Anyway, new valve covers will be ordered shortly from Dave B. I need to clean that engine bay up at some point I guess, lol. |
It's probably time for me to do something too. I haven't touched it except to change to 1 step colder plugs. How many miles do you currently have now, Joel? I'm sitting at 103,xxx. blah.....
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Originally Posted by Deckdout2
(Post 6318769)
It's probably time for me to do something too. I haven't touched it except to change to 1 step colder plugs. How many miles do you currently have now, Joel? I'm sitting at 103,xxx. blah.....
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so puppetmaster, since that oil buildup on the front of your engine is probably coming from your front valve cover, will those of us whose rear valve cover is leaking notice a buildup on the rear of the engine?
1 more question... the rear valve cover refers to the cover over the rear bank of cylinders, and the front valve cover is over the front bank of cylinders right? |
Originally Posted by Puppetmaster
(Post 6318770)
I'm at 60,04X as of this morning. :D
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ive seen more problems with rears than fronts in all years of maximas.
why is that? |
Originally Posted by zelot
(Post 6319298)
ive seen more problems with rears than fronts in all years of maximas.
why is that? |
Originally Posted by zelot
(Post 6319298)
ive seen more problems with rears than fronts in all years of maximas.
why is that? |
I have the same issue. When I pulled the IM to do the spacers and plugs, the right, rear spark plug chamber was full of oil. I suspected the valve cover but didn't replace it. :banghead:
Looks like I need to pull the IM again. |
good info man. When i pulled the spark plugs out just to see 2 4 and 5 were soaked w/ oil. I'll be changing both of my valve covers preety soon.
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Very good write up. My 99 is starting to leak just around that area. How did yo u know it was the cover and not just the gasket?
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just found out that my both valve cover are leaking.
time for some dirty work. lol |
Just did my rear valve cover last year. One note, there is no need to use a bead of sealer on the head. The new valve cover comes with a rubber gasket that should be seated directly on the head.
The only place you will need sealer will be on the passenger side, on either side of the crank. There is a sharp corner that requires a pea sized drop of gasket sealer in both corners. |
Originally Posted by 2002 Maxima SE
(Post 6338835)
Just did my rear valve cover last year. One note, there is no need to use a bead of sealer on the head. The new valve cover comes with a rubber gasket that should be seated directly on the head.
The only place you will need sealer will be on the passenger side, on either side of the crank. There is a sharp corner that requires a pea sized drop of gasket sealer in both corners. |
Originally Posted by 2002 Maxima SE
(Post 6338835)
Just did my rear valve cover last year. One note, there is no need to use a bead of sealer on the head. The new valve cover comes with a rubber gasket that should be seated directly on the head.
The only place you will need sealer will be on the passenger side, on either side of the crank. There is a sharp corner that requires a pea sized drop of gasket sealer in both corners. Not that hard, just a little scary knowing if you drop anything in the intake manifold the engine could be toast. it took me the better part of a day but I wasn't in a rush and also did the intake spacers. I also did a little cleaning and polishing of the IM while I could get at everything :D Side note - why are epacy's internal's a different color than mine? Eppacy's http://memimage.cardomain.com/member...1_242_full.jpg Mine http://lh6.ggpht.com/JimShepardson/S...jpg?imgmax=800 Shiny new valve cover http://lh5.ggpht.com/JimShepardson/S...jpg?imgmax=800 |
Have you been doing Auto-Rx?
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No, I have been using mobil1 synthetic since I had the car (~2 years), no other additives.
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so has anybody noticed decreased oil burning with a new valve cover or 2?
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Originally Posted by wyche89
(Post 6389647)
so has anybody noticed decreased oil burning with a new valve cover or 2?
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Originally Posted by Anachronism
(Post 6389604)
No, I have been using mobil1 synthetic since I had the car (~2 years), no other additives.
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I did the 04 valve cover fix and still burn oil.
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Originally Posted by 2002 Maxima SE
(Post 6389854)
My internals look just like yours (even down to the two discolored rings). I've been using synthetic (Mobil and GC) since 10k miles. Epacy's are due to varnish from dino oil.
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Originally Posted by Anachronism
(Post 6389924)
:thumbsup: Thanks, so is varnish bad?
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i apologize for the bump, but i ran into a small issue while replacing my valve covers... i over-torqued one of the bolts on the rear valve cover, and it separated.. is it terrible that the one bolt is missing? and how do i fix it? can i just drill a hole into the broken off bolt to make some new threads, then put a new bolt in there?
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