Jump to content
SAU Community

Rb25 Leaking Oil In Exhaust Side Of New T04Z

skidsforkids

By skidsforkids,
in General Maintenance

 Share

Recommended Posts

skidsforkids Enthusiast

skidsforkids

Posted
Posted

Ok where do I start...

So I have an r32 with a rb25 in it, end of last year i changed the engine to a new built forged rb25 with a new high mounted garrett gt3076. had all the bolt on mods pretty much everything done apart from cams.

So I did about 5000km on that until i wanted more power so I got a new Garrett T04Z and bolted that on and took it to the tuners via tow truck, they re-did the exhaust to a V-band and gave it a tune untill they found out my bosch 040 was maxing out at 5000rpm. So i went to the tuners and back a few times about a 10min drive, driving very slow and still had to take it back home to do more stuff to it because they were an absolute rip.

The car was running perfect but I didnt boost it to be safe. So I went all out and got a surge tank sorted with dual bosche 044's and a dual feed fuel rail and a new Jim berry full monty clutch. The first time i started the car with the new twin fed rail the car started smoking like hell real white smoke and it also sounded like its running on 5 cylinders. so i was thinking it was just overfueling or a plug came loose on one of the injectors or coilpacks.

Thats when i noticed that it was leaking oil from the bottom of the V-Band (so obviously it had an exhaust leak too) so I was very confused because this turbo is new. So I pulled the V-band off and there was oil in the exhaust. pulled intercooler and intake piping off and there was nothing. So i did a bit of searching and started with the easy stuff.

So Changed the Oil return and made sure it was flowing properly and clear. was running a -4 oil feed using a restrictor so changed that to a -3 and still leaking but i didnt think it would have been this because it would have leaked before. Checked the catch can set up just incase it was blocked and causing crankcase pressure and its clear and working perfectly but didnt think it would have been this either because I had this set up on my old engine and my new one.

Soooooooooo i got no idea now and just missed out on getting it tuned by Anthony Rodriguez so need some advice on what to do next.

Going to try a pressure test this weekend.

So the weird thing is it only started after I changed the fuel rail and added a few more fuel pumps and clutch.... SO pretty lost.

Any help would be great and no haters thanks

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

Is it definately oil?

Is it still missfiring? Reason i ask is a stuck injector can cause excessive white smoke.

Take the turbo off and check the manifold for any signs of oil etc (possible cylinder failed etc)

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

    • Manur33
      Rb25det coil loom wire identification

      By Manur33 · Posted

      Hi, i’m making a rb25det coil loom for Vag short coil. Can anybody tell me which Ecu signal wire belong to coil number 1 and 2,3,4,5,6? The connecting switch in above pic is 8 wire i think white is for +12v and black for earth.
    • davemoto63
      Stagea choice's which model??

      By davemoto63 · Posted

      Was there ever a model of the Stagea m35 that didnt have a badge on the grill? I thought I saw that somewhere, some aero edition or something? I cant find it again? davemoto
    • davemoto63
      Noobie Stagea owner..

      By davemoto63 · Posted

      Its a 2002 vr-x four VQ25DET, silver. Coil overs, lowered, polished alloys and sport exhaust. Bit of a project, was sitting in a shed for a while but runs and drives great.
    • CF.Panda
      R34 25GT Engine Light 21

      By CF.Panda · Posted

      I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
×
×
  • Create New...