Jump to content
SAU Community

Burning (oil?) Smell Through Ac

simply_mighty

By simply_mighty,
in Four Door Family & Wagoneers

 Share

Recommended Posts

simply_mighty Enthusiast

simply_mighty

Posted
Posted (edited)

Hi guys,

I recently purchased my M35 250T RS privately and am based in Canberra.

Today while driving home from work I noticed a distinct burning-oil-type smell coming from the AC vents that disappeared when the AC was turned off. Additionally, when I pulled over and opened the bonnet I could see a faint smoke (if you will) coming from the passenger side near the dipstick. The car was only recently serviced on Tuesday last week and the previous owner has not had any trouble with the car in such a way before.

I had a quick look underneath and there is a bit of oil residue/seepage near the turbo (Passenger side). I haven't noticed a decrease in boost pressure and engine temps are fine (as far as stocko guages can tell me). From work colleagues who have been car pooling with me at the time and on earlier dates; they say they've noticed it very briefly when driving around but thought it was the vehicles that were in front of us at the time.

The main thing is, my partner's car is in strife and we're due a baby any day now so I want to know what this is so I can rectify it ASAP, so I ask what are possible options for this?

P.S - LONG time reader, first time poster :P

Sean

Edited by simply_mighty
Link to comment
https://www.sau.com.au/forums/topic/337066-burning-oil-smell-through-ac/
Share on other sites
iamhe77 Grand Master

iamhe77

Posted
Posted

As chook said, check the oil level... but you should know that a common complaint with the VQ25det is that the passenger side bank will leak oil from under the cam cover. It may be leaking and dripping onto the turbo which could explain the smoke. "Simple" solution is to have the gasket under the cam cover replaced.

If the previous owner went nuts with the degreaser, might that actually be what you are smelling?

alu-siv_stagea Community Regular

alu-siv_stagea

Posted
Posted

perhaps some oil leaked out of the oil filter at time of service and dripped down around the gearbox i noticed it a couple of times when i did servicing on my series two, and its the same story a burning smell through the vents and minor smoke from under the bonnet.

scotty nm35 Grand Master

scotty nm35

Posted
Posted
So the general consensus is that it is a relatively easy fix?

Where would I go about sourcing a gasket if need be?

Sean

Nissan, I think it was around $70 unless that was an imported price. It isnt the same as the 350z so I will have to get the part no. for you.

Not a big job, just be careful with the rear section, its hard to keep the rubber gasket in the groove due to the heater pipes. You will need to remove the top part of the plenum first though.

iamhe77 Grand Master

iamhe77

Posted
Posted (edited)
So the general consensus is that it is a relatively easy fix?

Where would I go about sourcing a gasket if need be?

Sean

Nissan

Part #13270-AL612 :dry:

Should be around $20 and will have to come from Japan (10 day lead time)

Edited by iamhe77
iamhe77 Grand Master

iamhe77

Posted
Posted
Cheers iamhe77 - is that for both or just the one bank? I assume just the one bank although I may as well do both while I'm there

Sean

Just the passenger side bank mate.

If the driver's side bank isn't leaking, don't bother replacing it... Reason being that there are built in seals in the cam covers which stop oil from going into the spark plug holes. These seals can break.

So if it ain't broke, don't fix it in this instance :D

If the seal is busted, you will have to buy a new cam cover... and they go for around $300 each :dry:

matty_M35 Collaborator

matty_M35

Posted
Posted

just did my one the other week had the same smell you speak of!! check with a torch at the rear of the passenger cam seal you will prob see a liitle seepage.. replacing is a little bit of a bitch due to the space you have to work with.. and bit and pieces you need to move.. if you have a uni-joint socket adapter it will be your best friend for removing all the cam cover bolts.. and be sure to be careful not to damage the sparkplug valley seals. (i applied some dirko to one of mine as the spark plug was swimming in oil)

the part cost me $27 from col crawford nissan brookvale 2 days but thats coz it came from WA.

all this is pending thats the problem.. goodluck!!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      Unpeeling the Orange

      By Dose Pipe Sutututu · Posted

      Please use a modern ECU. PowerFC with the Nintendo Gameboy controller is horrible. It's not 2005 anymore.
    • Kapr
      ECU sees many times the speed than speedo does (R34 swap)

      By Kapr · Posted

      The car/ECU will have all the sensor that it needs and expect to have. I think i do not have to explain to you how the Link is way better specialy if you have swapped engine   I just do not want to deal with any "problems" cuz i have only Nistune which i learned is not that great and in my case cant even deal with that speed problem (Link can) And of course it will be way more easier to tune and diagnose and safe. And for the ECU/speed problem...i dont know.
    • wizlb
      Who has a Infiniti Q60, Q50 (V37)?

      By wizlb · Posted

      Per Mark Roberts of Sonictune: Mark Robert Author At this time, no. No ETA either 2016-17 models. You will be able to purchase and install a 2018.5+ TCU though   TCU purchasing and pricing info! As we near the release of TCU tuning, I am going to answer some questions I get asked often.   What do I need for TCU tuning? At this time, you will need a 2018.5+ TCU to be able to tune. If you have a 2016-to early 2018, you will need to replace your TCU with the newer version. One good way to know if your TCU is good is if you have auto upshift in manual mode in 1st gear around 6500 rpms. If your manual 1st gear goes to 7k rpm and will hit the rev limiter unless you shift, you have the older TCU.   Why do I need to buy another ecu license/phone flash if I already have it on my ECU tune? The TCU is its own computer module. It is completely separate from the ECU. Because of this, you will be required to purchase a TCU license and, if your tuner has it, the phone flash license required to tune it via phone/bluetooth.   Do I need TCU tuning? TCU tuning is NOT required. However, the faster your setup, the more it will assist in track and dragy time consistency.   If I’m ECU tuned by (tuner A) can I get my TCU tuned by (Tuner ? Yes, since it’s a different module and a completely separate flash, you can have two different tuners. However, it is highly recommend that you have both tuned by the same tuner. For me, my TCU tuning will directly complement my ECU tuning style and features and running my ECU and another TCU or vice versa MIGHT cause some issues. At this time and for the foreseeable future, I will only be tuning my current ECU tuned customers TCUs.     I have a SYVECS AWD controller. Do I still need it? Yes! The AWD controllers main job is to control your AWD system. However, with TCU tuning, you will no longer need the auto-shift function as that will be done through the TCU. The AWD controller will still be very beneficial for racers looking to maximize traction on the launch.     Shift schedule changes: holding gears longer at lower pedal input as well as max shift rpm changes. Please note, the new ECU race rom coming out will address 90% of the shitty drivability issues these cars have through custom maps from myself and Racebox—as well as others I am sure.   Increase shift speeds: as seen in the videos I’ve been posting, the TCU shifts much faster once tuned.   Increased shift pressures: as also seen in the videos, much firmer full throttle shifts.      
    • wizlb
      Who has a Infiniti Q60, Q50 (V37)?

      By wizlb · Posted

      Per Mark Roberts of Sonictune:     Mark Robert Author At this time, no. No ETA either 2016-17 models. You will be able to purchase and install a 2018.5+ TCU though   TCU purchasing and pricing info! As we near the release of TCU tuning, I am going to answer some questions I get asked often.   What do I need for TCU tuning? At this time, you will need a 2018.5+ TCU to be able to tune. If you have a 2016-to early 2018, you will need to replace your TCU with the newer version. One good way to know if your TCU is good is if you have auto upshift in manual mode in 1st gear around 6500 rpms. If your manual 1st gear goes to 7k rpm and will hit the rev limiter unless you shift, you have the older TCU.   Why do I need to buy another ecu license/phone flash if I already have it on my ECU tune? The TCU is its own computer module. It is completely separate from the ECU. Because of this, you will be required to purchase a TCU license and, if your tuner has it, the phone flash license required to tune it via phone/bluetooth.   Do I need TCU tuning? TCU tuning is NOT required. However, the faster your setup, the more it will assist in track and dragy time consistency.   If I’m ECU tuned by (tuner A) can I get my TCU tuned by (Tuner ? Yes, since it’s a different module and a completely separate flash, you can have two different tuners. However, it is highly recommend that you have both tuned by the same tuner. For me, my TCU tuning will directly complement my ECU tuning style and features and running my ECU and another TCU or vice versa MIGHT cause some issues. At this time and for the foreseeable future, I will only be tuning my current ECU tuned customers TCUs.     I have a SYVECS AWD controller. Do I still need it? Yes! The AWD controllers main job is to control your AWD system. However, with TCU tuning, you will no longer need the auto-shift function as that will be done through the TCU. The AWD controller will still be very beneficial for racers looking to maximize traction on the launch.     Shift schedule changes: holding gears longer at lower pedal input as well as max shift rpm changes. Please note, the new ECU race rom coming out will address 90% of the shitty drivability issues these cars have through custom maps from myself and Racebox—as well as others I am sure.   Increase shift speeds: as seen in the videos I’ve been posting, the TCU shifts much faster once tuned.   Increased shift pressures: as also seen in the videos, much firmer full throttle shifts.      
    • The Bogan
      NC MX5

      By The Bogan · Posted

      The fancy pants red shock tower brace is finally incoming from MX5 Mania, getting it shipped from 'Merica has been a long and problematic process, and GWR, the 'Merican supplier will not ship directly to consumers outside of the US, Mania basically had to order a heap of them, the colour choice was silver, or red, and we all know anything red adds 5 killerwasps of dynotorques..... Whilst it does fit over a 2.5, and I've seen a few photos and videos of it being installed and fitting, google also says it might get real close to the FAB9 intake front runner, people in the US says it does fit with the FAB9 intake, except for one person who said it slightly touched.......so there is that.....LOL..... As it seems that I am the first in AU to have this combination of parts there's no local knowledge about fitment, so I'm just a willing guinea pig in this endeavour, I'll cross my fingers and toes and hope for the best In other news, I ordered stuff from China  on the same day I ordered the 23° silicone bend from Victoria, the stuff from China arrived a day ago, the 23° silicone bend is still travelling around Australia thanks to Australia Post, and "may" be here next week
×
×
  • Create New...