Jump to content
SAU Community

Oil In Spark Plug Valley/chamber

jonathon

By jonathon,
in General Maintenance

 Share

Recommended Posts

jonathon Enthusiast

jonathon

Posted
Posted

Hi all, I have had some idling issues in a m35 stagea (vq25det) so I looked at my spark plugs.

I have found oil in the chamber where the coil pack lead runs - and all over the spark plug.

The spark plug was dripping with oil but from what I can see it is from the oil in the chamber as there does not seem to be oil in the piston area.

Any ideas on what's wrong?

Link to comment
https://www.sau.com.au/forums/topic/425649-oil-in-spark-plug-valleychamber/
Share on other sites
scotty nm35 Grand Master

scotty nm35

Posted
Posted

It is quite common to have a slow leak into the plug well, it doesn't affect the engine at all as oil is an insulator. To properly fix the leak you will have to replace the whole rocker cover (around $250) as the seals aren't replaceable, or you can attempt shoving silicone around the plug tube/seal. The rocker gasket will require replacement also while you are there.

This would also explain the oil burning smell when you turn the heater on.

Did you pull a plug? The last set I changed for someone had a 3mm gap. lol.

jonathon Enthusiast

jonathon

Posted
  • Author
Posted

Awesome - thanks for the info. I fortunately don't get any burnt oil smell!

Yeah I pulled a couple of plugs - gap was good - also was nice to see good quality platinum plugs in there as its a bi!&ch to get too!

scotty nm35 Grand Master

scotty nm35

Posted
Posted

When you launch there is only one way for the oil to go, down on to the turbo. (unless you have a DD?)

I find it fairly easy to get to the plugs, you only need to drop the intake/bov pipe...

Get into the Stagea section above ^^ there is plenty of reading for you to do. :)

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

    • Butters
      R34 GTR Speedo Drive , sensor type ?

      By Butters · Posted

      Working through possible solutions of converting my mechanical speedo.    Anyone know what type of speedo sensor the factory r34 gtr getrag has ? what the output is ? I assume its not a VSS and more a voltage like earlier speedo sensors ? Can an ECU read it ?  
    • Duncan
      spot the stagea

      By Duncan · Posted

      roof rail delete used to be a thing, they were made locally for a while too
    • AnimalGarage
      spot the stagea

      By AnimalGarage · Posted

      I can get more photos of it here soon and I plan to make a thread detailing the process. I received the car this way and it sorely needs refinishing. That is probably the most appealing photo of it. Up close it is fading, cracked, and needs to be re-glued. Depending on their condition I'm on the fence between refinishing or making a new set.  Another angle hiding the pimples and razor pumps  
    • AnimalGarage
      Can you mount the ATTESA pump in other locations?

      By AnimalGarage · Posted

      According to this thread the RS4V with build plate RC40 comes with the R200 diff @ 4.083 ratio as well (mine has said RC40 denotation). We may need to check if the axle stubs are the same pattern as well. The auto subframes have longer axles. However I think yours being a later Series 2 as well, we should have the same bolt pattern for the diff stubs. Unless your upgraded rear also has upgraded axles. Either way, I would not be opposed to pulling the covers to check so I can inspect that  fancy rear core  Also I don't have HICAS. I don't believe that should change things but I hope the people here with heaps more experience than me can correct me if I'm wrong   Let me know if you want to attempt to make this work and I can get some pictures of mine from under the car. 
    • joshuaho96
      R34 25GT Engine Light 21

      By joshuaho96 · Posted

      It's not that straightforward. For example I have had this code because my ignitor/power transistor wires were unplugged. It knows something is wrong but has no idea what it means. If you want to actually diagnose this I recommend following the service manual flowchart for code 21. Ohm out the harness, coilpacks, inspect the ECU, etc. And again, it's entirely possible for there to be no problem at all but if you're running a different coilpack it'll trigger the code because it doesn't like what it sees.
×
×
  • Create New...