350Z / G35 Aluminum Valve Cover Installation/ Replacement | AnthonyJ350

In this video we install a set of aluminum valve covers on a Nissan 350Z. We show you the key areas to focus on in order to get the factory valve covers out and the new ones in.
We install a set of Mitzone valve covers which are identical to the Concept Z versions. New gaskets were also used for the installation.
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I am a Mobile Electronics Certified Professional 12 Volt Installer (MECP Certified), Business Management Graduate (KPU), with a Professional Driver's License and a genuine automotive enthusiast who loves working on vehicles and I want to share my experiences with you. The goal is to help other people who can hopefully learn from my unique outlook towards vehicles, experiences and working practices.
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350Z / G35 Aluminum Valve Cover Installation/ Replacement | AnthonyJ350
• 350Z / G35 Aluminum Va...
ANTHONYJ350
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[@vq.krisss]

I did these 3 weeks ago and cars been running so much better as the previous ones were leaking from the rear side of the passenger valve cover.

[@AnthonyJ350]

Nice! Which brand did you put in?

[@vq.krisss]

@@AnthonyJ350I actually used the Mitzone brand but after a few weeks, I have a mysterious leak and have bought valve cover gaskets to use OEM from Z1

[@AnthonyJ350]

@@vq.krisss Are you going to use OEM gaskets with the Mitzone valve covers?

[@vq.krisss]

@@AnthonyJ350Yes, I believe it should fit better, hopefully with slight adjustments and cleaning I can find out if it's the valve cover or some place else

[@AnthonyJ350]

@@vq.krisss Did you put rtv to hold the gasket in place during installation?

[@ozelot250]

My own original valve covers just started leaking after 21 years. Pretty impressive that they last that long without leaking.

[@AnthonyJ350]

That is pretty good actually! What are you going to replace them with?

[@mikeyg8133]

Mine just went its an 03

[@ozelot250]

@@AnthonyJ350I haven’t decided. I was thinking of just sticking with OEM

[@AnthonyJ350]

@@ozelot250 cool!

[@K.media-now]

The only tip I would say, is maybe use blue thread locker when putting the valve covers back on because mine became very loose within a month period of doing this

[@AnthonyJ350]

Thanks for sharing!

[@DAVORIMAGE]

I noticed the valve seals (O-rings) for Driver side are bigger than the Psngr side. If taken out, you can easily get confused and mix up a incorrect seal install causing a future oil pool leak around the spark plug. The bigger seals have 4 small dots behind around the ring. Best to mark the seals with a silver sharpie.

[@AnthonyJ350]

I see what you mean, the outside diameters are different. I wonder why they do that. Good call

[@angelmartinez6637]

how long after the original install did you need to replace the o rings?

[@DAVORIMAGE]

@@angelmartinez6637 they could last probably another 98,000 miles or more untill u start seeing oil pools around ur spark plugs. You gotta remember its the long term heat that makes the rubber bristle.

[@BrAnarkey]

Is it still holding up well?

[@AnthonyJ350]

Yup, it's working well.

[@BrAnarkey]

Thanks. I just ordered mine. The fasteners where you recommended putting thread lock blue are pretty snug on mine already.

[@deanknight7133]

What the spark plug seal replacement part number

[@AnthonyJ350]

It's available on rockauto.com now

[@ItsMEmrMonCOOKIE]

Hey Anthony love your videos! I also bought these and did them maybe about 3-4 months back. I checked everything also did loctite on all the bolts on the inside, I'd watch the spark plug tubes makes sure they don't leak. Mine recently started, I'm wondering if it is just cheap seals, I'll probably end up taking them off and replacing the spark plug seals soon. I know Nissan makes OEM replacement spark plug seals, I think one of the Infiniti's with the same engine had aluminum valve covers where you can replace all the seals. I'll probably end up getting those seals.

[@AnthonyJ350]

Thanks so much for sharing! That's a good idea, I'll try buying the OEM ones as well and put then in. I still need to install the set on my car

[@AnthonyJ350]

I did put dielectric grease on these before we installed it to help the seal go over the spark plug tube easily.

[@ItsMEmrMonCOOKIE]

@@AnthonyJ350 Thats a smart idea, I bet just a little bit of motor oil would help too. also did you ever figure out what that clanking sound was? was it the main tensioner for the timing chain?

[@AnthonyJ350]

@@ItsMEmrMonCOOKIE Mine was the vvt solenoid

[@ItsMEmrMonCOOKIE]

@@AnthonyJ350 Did it go away right away or did it take time?

[@tainocolon5572]

I just purchased the aluminum version from Miliparts. The paint well I was impressed with the quality. Is the PVC removable?

[@AnthonyJ350]

PVC is replaceable

[@tainocolon5572]

@AnthonyJ350 I tried using a wrench, but all I managed to do was scuff the corners. I need to use a shallow socket.

[@ChristianHidalgo-i8o]

did u reuse the gaskets for your plenum?

[@AnthonyJ350]

I ordered new ones.

[@Visca_Motion_Pictures]

Should torque the plenum bolts in the same order as the owners Manuel. Looks sweet

[@AnthonyJ350]

Followed Motordyne's instructions

[@norio4x]

what is the part number for the replacement spark plug tube seal gaskets ?

[@AnthonyJ350]

They're available now on Rock Auto when you search them.

[@norio4x]

@@AnthonyJ350 can you provide a link boss

[@AnthonyJ350]

@@norio4x www.rockauto.com/en/catalog/nissan,2006,350z,3.5l+v6,1433005,ignition,spark+plug+tube+seal,7220

[@norio4x]

@@AnthonyJ350 what brand are you running tho boss the apex? i seen another called victor something also

[@AnthonyJ350]

@@norio4x We ran the ones that came with the valve cover.

[@Thats_X_]

Did you guy use oem bolts to secure the mitzone valve cover down to the head? Or it’s mandatory to use the supplied bolts that came with mitzone valve covers?

[@AnthonyJ350]

We used the supplied hardware.

[@Thats_X_]

@ appreciate it. I went ahead and ordered the mitzone valve covers.

[@AnthonyJ350]

@Thats_X_ Cool!

[@Samualninja]

Have you done a temperature difference between these and OEM?

[@AnthonyJ350]

No, I assume they would contain more heat being aluminum. I had mine powder coated.

[@tainocolon5572]

I still have my OEM VC on my Rev UP I currently have the Audi R8 plug conversion. Will this new metal version work with the Audi plugs?

[@AnthonyJ350]

The new valve covers are identical to factory so your adaptor should still bolt in. It looks like they copied the original and made a mold for cast aluminum.

[@michaelpowell4719]

Preparing to do this myself, question. At 6:43 you previously cleaned the mating surface of the cams themselves, do I reapply new gasketmaker all the way around the sameway? I know that you put them on the new covers so they dont just flop out when you try putting them on there. Please and thanks.

[@AnthonyJ350]

Gasket maker in the corners with the new rubber gasket. We didn't on this job and it has been fine.

[@michaelpowell4719]

@@AnthonyJ350 Thanks! So only on corners of the valve covers, gotcha.

[@AnthonyJ350]

@@michaelpowell4719 correct

[@alexcheetah79]

you forgot to mention the you need to apply gasket marker in a couple of the corners.

[@AnthonyJ350]

Thanks for the feedback!

[@autograph415]

is that all thats needed is what comes with the kit in your link? also how long of a job overall was it?

[@AnthonyJ350]

Yup. Took us 6 hours (we were also filming).

[@daveyofyeshua]

*Lovely video, nicely put. Did you need to modify anything on the ally valve covers to get them to fit nice?

[@AnthonyJ350]

Not, just take them apart, clean them and thread lock the screws back in. Fitment was the same as stock. No reported issues still.

[@adammullins1862]

Hey man do these fit on the hr or just the de ive been looking but can’t seem to find ones that’s say there for hr only de

[@AnthonyJ350]

From what I understand, there is no aluminum solution for the HR yet.

[@theholt2ic219]

Did your OEM pcv valve fit fine? I tried reusing mine and it won’t thread in right

[@AnthonyJ350]

It should. It didn't come with a new one?

[@ShadowInterference]

What size screw driver did you use on the screws for the baffles?

[@AnthonyJ350]

It was a small torx.

[@alexcorral855]

mmh not shure if i missed it but i have a pair of czp valve covers and now i need to put them on. maybe i missed it but why did you go from czp valve covers to the red ones which are basically the same?

[@AnthonyJ350]

This is Raul's car and he purchased the Mitzone, I have a set from CZP that I still need to have powder coated.

[@350zlife5]

How’s the valve cover working for you ? Did you keep their gaskets or got another pair ? I heard they have iffy gaskets

[@AnthonyJ350]

We used the provided gaskets. Raul said they've been fine so far.

[@DAVORIMAGE]

Get the oem Nissan or Ishino Stone gaskets...

[@T4sho3]

I see you switched the pcv valve, is it necessary or does the one that it comes with work?

[@AnthonyJ350]

The one it comes with should be fine. The PCV was recently changed on this car so we decided to reuse it.

[@DAVORIMAGE]

Best to use a oem pcv or one from Autozone. The one it came are reallllly cheap and will smoke.

[@AceDumev]

So rtv only on the cover side in the corners? No rtv on the engine side surface? How long did you let the rtv set befor installing the covers ?

[@AnthonyJ350]

24 hours. You can put rtv on the corners of the cylinder head and let it sit for a few minutes. This car we didn't, but it hasn't had any leaks. And right now we travels 500-800KM per week.

[@AceDumev]

@@AnthonyJ350 thank you for the reply. Wow 24 hours befor install? I was thinking 5 mins then install lol. I think I'm gunna wait 5 mins then install and wait a full 24hours befor fire up

[@AnthonyJ350]

@@AceDumev Ya you want the RTV to act like glue so it stays in place as you install the valve cover.

[@AceDumev]

​@@AnthonyJ350 just got mine today and both pcv holes on the driver side cover are blocked and will require drilling out. And the plastic baffles are not great some damage from the screws. Did you inspect the pcv holes to make sure none were blocked ?

[@AnthonyJ350]

@@AceDumev Did you get Concept Z or Mitzone?

[@инвесторвничего]

I advise you to remove the plastic fitting on the nozzle

[@AnthonyJ350]

Thanks for the comment

[@andyxedos1]

Wish these were available in the Uk!

[@AnthonyJ350]

You can't get it from Concept Z or Amazon there?

[@unknowntuber9331]

you can order it to the UK mate

[@koi124]

Is threadlocker blue enough for the fasteners? Was thinking about using red because I don't want any of them eventually becoming loose.

[@AnthonyJ350]

You might not be able to take them out after.

[@koi124]

@@AnthonyJ350 Would you recommend sticking with blue?

[@AnthonyJ350]

@@koi124 Yes I would. Let it set overnight before running the engine

[@davidfrank6666]

if u use red a torch is needed to remove them!

[@adin8905]

Serious question how important is the torque wrench on the valve covers? Cause I rly wanna do this to my g cause mine are leaking bad and I just got a cd009 transmission put in it don’t want engine problems now

[@AnthonyJ350]

Very important

[@richardfisher34]

Do you know if these fit an vq35HR , I’ve been only seeing DE ones , idk if it matters or not

[@AnthonyJ350]

I think it's only available for DE applications at the moment.

[@user-fx1cm3bu7y]

how to tighten the cover NM ?

[@AnthonyJ350]

We did inch/ pounds. With a torque wrench.

[@FairRhey]

I would do this but I wouldn’t know which bolt would go where lol

[@AnthonyJ350]

Always work within your limits. Your trusted mechanic can perform the job for you.

[@ninobulfa]

After installing this over a month ago it started smelling like burnt plastic. Could it be from the plastic that you have to loctite the screws? Will the smell go away at some point?

[@AnthonyJ350]

It still smell like burnt plastic? Check your wiring and make sure it's ot resting on something hot.

[@LibertyGunsBeerTrump]

Did you ever get this figured out?

[@davidfrank6666]

i can not believe u did not paint the intake while u had it off!

[@AnthonyJ350]

You don't follow me on Instagram do you? This wasn't my car. I had my intake off, ported and polished the runners and had everything Cerakoted.

[@AnthonyJ350]

Here's my car, and you can see, everything is painted. I also had my Valve Covers powder coated for durability kzbin.info8qfqCw73Mr8?feature=share

[@Akanematcha]

Do you put any type of silicone for this job???

[@AnthonyJ350]

No silicone

[@yiannismcguire9118]

How's it going @AnthonyJ350?! By any chance can you elaborate if you used any gasket markers when seating the valve covers onto the heads. My worry is that over time the gasket will become brittle and bypass oil from this area if not sealed with a secondary support.

[@AnthonyJ350]

@@yiannismcguire9118 We only used gasket maker to hold the gasket to the cover during installation. You can add gasket maker to the corners to help it seal more.

[@yiannismcguire9118]

Thank you!

[@michaelenochs4033]

Hey, I want to replace my Valve Covers. Are the Concept Z products really that much better than Amazon? The valve covers I have on now are probably 3 years old and I'm seeing leaks in the front passenger and rear drivers. These were Amazon plastic style with the brass wire mounting inserts and the last time I worked on my car, i pulled one of those inserts out. It just has me questioning an upgrade. What is your experience with heat problems or anything I should know? 2003 G35 Coupe 6MT and I've replaced so much stuff already. I do like the idea of changing the spark plug tube seals.

[@AnthonyJ350]

We compare the 2 here kzbin.info/www/bejne/iKeupoWQr69mppY

[@illusionz6326]

Where did you get the aluminum covers

[@AnthonyJ350]

Concept Z

[@phillipe4742]

Are the OE covers plastic?

[@AnthonyJ350]

Yes they are.

[@junseoul5033]

Anybody know the nissan part number for the spark plug seals? Or the yr model of the car that uses the oem seals? Thanks in advance!

[@AnthonyJ350]

There's a left and a right side. Concept Z has them on their website.

[@turbo740]

Are there any available for the HR engine?

[@AnthonyJ350]

From what I gather not yet. I would check the years on Concept Z and Amazon for the Mitzone version.

[@K.media-now]

Z1 said HRs have replaceable plug seals

[@turbo740]

@@K.media-now I'm pretty sure they aren't replaceable, unless you mod them. I know the VHR are replaceable.

[@reesieap9676]

I have the same valve I put on my G35 sedan 2006 and it's now misfiring

[@AnthonyJ350]

Is there oil in one of the spark plug tubes?

[@2xSleepy]

iv done these aswell ther easy and good to

[@AnthonyJ350]

Yes, we're very please with the fitment.

[@axxelbanda46]

Can anybody tell me how well these amazon ones hold up in the long term? I do atleast an hour of highway driving for work and sometimes a couple of pulls😅

[@AnthonyJ350]

So far they work great on our vehicles.

[@VladNi-x3e]

Where do u get this valve cover ?

[@AnthonyJ350]

Amazone or Concept Z

[@DAVORIMAGE]

Following this video, I will step up the VC set a bit further. 1: Powder Coating it for a harder shell color layer. 2: Ishino Stone Japan gaskets & oem pcv 3: Replacing ALL aluminum bolts w steel ones or bttr. 4. Extra sealant on the corners of the valves, where its notorious for leaking at. TIP: If you still see white smoke or smell it inside the cabin. Check the lower exhaust manifolds (Headers) and wipe off any past oil residue around them since it gets hot and probably burning up the old oil leak problem you just solved.

[@AnthonyJ350]

Thanks for sharing!

[@URBANENGINEER]

Blue loctite on the baffle bolts too*

[@URBANENGINEER]

Also, one of my pcv outlet holes was blocked by the extra casting material! Pcv couldn’t work if I didn’t drill it out. It was paper thin, but needed.

[@hernanmurillo8925]

Are the seals serviceable ?

[@AnthonyJ350]

Yup, you'll have to remove the covers, remove the inner tray and you can pop in new seals. Concept Z has them on their websitem

[@hernanmurillo8925]

@@AnthonyJ350 how do you remove the tray? I'm gonna buy the seals from Nissan

[@AnthonyJ350]

@@hernanmurillo8925 Held in bu screws. This video shows their design kzbin.info/www/bejne/b3aWfmCujbJ5jsU

[@hernanmurillo8925]

@@AnthonyJ350 thank you

[@AnthonyJ350]

@@hernanmurillo8925 You're welcome

[@stealthg35infiniti94]

Very good instruction on installation. Did you put sealant on the sharp bends like the factory does? I have been told if you don't, you will probably experience oil leaks around that area.

[@AnthonyJ350]

We actually didn't and are monitoring the covers to see what happens.

[@legollama88]

@@AnthonyJ350has there been any leaks?

[@AnthonyJ350]

@@legollama88 No, so far so good

[@DavMendez]

Thanks

[@AnthonyJ350]

Thank you for watching!

[@dvyle24]

Where are you located

[@AnthonyJ350]

BC Canada

[@reddeder-xr7eu]

on many u2 videos for 350z they are adding gasket maker on the alum surface at the corners prior to installing the new valve cover and gasket...is this 100% necessary for a recreational car ...not a perfectionist or OCD ...

[@AnthonyJ350]

It's not a bad idea to as a precaution.

[@vickarious808]

morale of the story remove everything no bolts just pull the plenum 4head

[@AnthonyJ350]

Thanks for watching

[@Rah_888]

Did you ever find out what was living in your engine 🤔??

[@AnthonyJ350]

Not my engine, but most likely a rodent.

[@DAVORIMAGE]

If its Cold, small rodents tend to stay warm inside the engine thru middle opening and chew up the knock sensor wires...

[@Rah_888]

@@DAVORIMAGE why do they chew the wires?

[@Rah_888]

@@AnthonyJ350 that sucks 😞

[@DAVORIMAGE]

@@Rah_888 they chew anything in there way ;)

[@2xSleepy]

dam seen this on 47 secs lol

[@AnthonyJ350]

Thanks for watching!