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Should I replace valve covers on my 2011 G37?

Old Mar 14, 2018 | 03:45 PM
  #16  
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In my case, because my mechanic said they needed to be replaced. I would have second-guessed the dealer, but I didn't question my local shop - especially since they know I like to supply my own parts and they aren't making any extra money on replacing the covers vs. just the gaskets.

I mean, they're plastic, so it seems feasible that sometimes when the gasket goes, the cover itself could get compromised.
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Old Mar 14, 2018 | 03:48 PM
  #17  
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u replaced them without asking why? i wouldnt be surprised if ur mech mistakenly thought it was jus like the g35 not knowing they changed it up.
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Old Mar 15, 2018 | 04:43 PM
  #18  
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Well, I doubt he mistakenly related it to a G35 common issue as it's a small town in central ohio and there are maybe 4-5 cars with Nissan VQ engines total driving around, but who knows, maybe I should have dug deeper. I'm not enough of an expert to say how likely it is that a given part will need to be replaced on specific models of any make other than what I've experienced. But like I said, it was a reputable shop that I've had a good relationship for some time, and they had no motivation to lead me astray on the issue.
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Old Mar 15, 2018 | 04:51 PM
  #19  
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that makes me wonder even more then where he got the idea that the covers needed full replacements. like u said small town and not really nissan experts at all. shops make mistakes all the time they cant know everything about every car. even my friends shop that i go to i corrected him a lot of times for specific things about my car. im not mad i cant expect him to know everything about every car he works on. im just glad i know enough to correct things before he waste his time and my money on things i dont need. im not just gonna believe everything a shop tells me unless maybe if its at the dealership but even they get it wrong sometimes
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Old Mar 16, 2018 | 11:40 AM
  #20  
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Originally Posted by saywat?
that makes me wonder even more then where he got the idea that the covers needed full replacements. like u said small town and not really nissan experts at all. shops make mistakes all the time they cant know everything about every car. even my friends shop that i go to i corrected him a lot of times for specific things about my car. im not mad i cant expect him to know everything about every car he works on. im just glad i know enough to correct things before he waste his time and my money on things i dont need. im not just gonna believe everything a shop tells me unless maybe if its at the dealership but even they get it wrong sometimes
^^^well stated and absolutely true.. best way to deal with your car mech(and all of life's things in fact...)
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Old Aug 15, 2018 | 08:04 PM
  #21  
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I didn't want to open a new thread so I hope the op wouldn't mind.

I have leaking valve covers. So I have spoken with an infiniti and Nissan dealer.

Since I am at it I wanted them to change the spark plugs too. Well both of them gave me similar quotes:

Infiniti dealer $950
Nissan dealer $975 ($680 labour $300 parts including spark plugs )

I mean parts are ok (expensive compared to Amazon but ok) but the labor for valve cover leak seems excessive. Not to mention the Infiniti dealer is CHEAPER !!!

I will appreciate any information on this.
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Old Aug 15, 2018 | 08:22 PM
  #22  
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^did u try and read the entire thread? u dont need to replace the entire cover unless its physically damaged
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Old Aug 15, 2018 | 08:35 PM
  #23  
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Originally Posted by saywat?
^did u try and read the entire thread? u dont need to replace the entire cover unless its physically damaged
I read it and that is not the point, I am ok with the price of parts , I think he will just change the gaskets etc not the covers anyways. What I am asking is the labor, even if I don't change the covers they will probably still charge 680 for the labor.
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Old Aug 15, 2018 | 08:59 PM
  #24  
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does it show what theyre charging per hour and how many hrs theyre charging. that would help. i would think no more than 3 hours
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Old Aug 16, 2018 | 12:38 AM
  #25  
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Originally Posted by saywat?
does it show what theyre charging per hour and how many hrs theyre charging. that would help. i would think no more than 3 hours
I also thought it was 3 hours but the manager (after some discussion with his mechanic far away from me decided that the labor is 680$). That is why I was curious about what others were quoted from the dealers.

I wish I had a garage, I could have probably done it myself. Well i may take it to the Infiniti dealer and maybe ask for some discount.
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Old Aug 22, 2018 | 01:34 AM
  #26  
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I think I will try an independent mechanic. Is it possible to tell if you need new covers quickly ? I have a feeling that at 83k miles I don't need new covers but who knows.

Can someone who did this repair help me telling me necessary parts ?

I am planning to get gaskets (should i get OEM or is there a better aftermarket option)?

If the mechanic tells me that the covers has to be replaced then I am planning to order them too.
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Old Aug 22, 2018 | 03:07 PM
  #27  
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Valve covers, being metal, tend to last a long time. Gaskets are usually the source of top-end leaks. Of course, nothing is perfect and a valve cover could have a casting flaw the creates a weak spot that could eventually crack under the thousands of heat cycles it'll see over its lifetime.

Last edited by slartibartfast; Aug 22, 2018 at 03:13 PM.
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Old Aug 22, 2018 | 03:11 PM
  #28  
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Originally Posted by slartibartfast
Valve covers, being metal, tend to last a long time. Gaskets are usually the source of top-end leaks. Of course, nothing is perfect and a valve cover could have a casting flaw the creates a weak spot that could eventually crack under the thousamds of heat cycles it'll see over its lifetime.
im pretty sure our valve covers are plastic
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Old Aug 22, 2018 | 03:13 PM
  #29  
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In that case, I stand by my assertion that the gasket is the likeliest source of top-end oil leaks.
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Old Aug 22, 2018 | 03:28 PM
  #30  
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Should I try to get the OEM gasket set (I think Nissan dealers usually sell them for a total of $50-60) or would an oem substitute like Mahle will work? I am not trying to cheap out on the parts it is just that if I leave it to the mechanic I don't know which one he will use. I can try to bring my own parts but that is usually a hassle with indie's.
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