Jump to content
SAU Community

Blowing/whistling Noise From Turbo Area Any Ideas

Djdirt

By Djdirt,
in Engines & Forced Induction

 Share

Recommended Posts

Djdirt Apprentice

Djdirt

Posted
Posted

Hey,

My R33 series 1 started making a blowing/whistling noise from around the turbo, it gets louder after the car is warm, sounds like some sort of pressure leak and is constant no matter the revs, when the car turns off the pitch of this sound slowly goes down over about 10-15 seconds until its gone. I am running a 3076gt turbo, avcr, high mount manifold and external wastegate among other mods which probably dont matter for this.

Anyone with any ideas let me know as i couldn't find much similar on these forums, i am guessing in some gasket/exhaust connection but it is hard to track down where its comin from without taking it all off. Also some carbon/black dust around bottom/back of turbo area near the manifold.

Cheers all

NYTSKY Grand Master

NYTSKY

Posted
Posted
Hey,

My R33 series 1 started making a blowing/whistling noise from around the turbo, it gets louder after the car is warm, sounds like some sort of pressure leak and is constant no matter the revs, when the car turns off the pitch of this sound slowly goes down over about 10-15 seconds until its gone. I am running a 3076gt turbo, avcr, high mount manifold and external wastegate among other mods which probably dont matter for this.

Anyone with any ideas let me know as i couldn't find much similar on these forums, i am guessing in some gasket/exhaust connection but it is hard to track down where its comin from without taking it all off. Also some carbon/black dust around bottom/back of turbo area near the manifold.

Cheers all

Bingo! Replace the turbo/manifold gasket.

EDIT: Or exhaust gasket :D

Duncan Grand Master

Duncan

Posted
Posted

the soot suggests a manifold gasket leak, but the fact it whistles after you stop the car suggests bearings are dead in the turbo (keeps making a noise until the bearings stop turning.

at least since it is high mount it is easy to remove

Djdirt Apprentice

Djdirt

Posted
  • Author
Posted
the soot suggests a manifold gasket leak, but the fact it whistles after you stop the car suggests bearings are dead in the turbo (keeps making a noise until the bearings stop turning.

at least since it is high mount it is easy to remove

Is this something that would happen to a newish garrett gt3076r turbo? its only around 10,000kms old? could there be any other cause for that sound like pressure releasing from somewhere else? hope its not the turbo as well as a leak as dont really wanna cough for new turbo or wait for it to be rebuilt.

Cheers

evil_weevil Grand Master

evil_weevil

Posted
Posted

Ive got exact same problem, only just started - but no noise after the car has stopped.

Anyone know how long the job takes if you were to do it yourself?

Pun4N1 Explorer

Pun4N1

Posted
Posted (edited)

mine was doing exactly the same thing, replaced manifold gasket with genuine nissan one $95 new exhaust studs and nuts, Fixed the problem :D i did the job myself it took a while (about 5 hours) because 4 studs broke and one bound up and needed to be drilled and tapped

Edited by Pun4N1
Djdirt Apprentice

Djdirt

Posted
  • Author
Posted
mine was doing exactly the same thing, replaced manifold gasket with genuine nissan one $95 new exhaust studs and nuts, Fixed the problem :D i did the job myself it took a while (about 5 hours) because 4 studs broke and one bound up and needed to be drilled and tapped

was your making the noise after car was turned off?

Pun4N1 Explorer

Pun4N1

Posted
Posted (edited)

my car was not making the noise after it was turned off, does the noise sound like a pressure leak? similar to the noise you get when you blow a gum leaf between your hands? (bushman rubbish there, sorry!) is your car auto by any chance?

Edited by Pun4N1
Pun4N1 Explorer

Pun4N1

Posted
Posted (edited)

i would tend to stick to the exhaust manifold gasket leaking but that would not be leaking once the engine is turned off, you may find instead of the air escaping the system it might be a vacume leak try getting some very soapy water and wetting all the tube connections around about where the noise is coming from if air is escaping there will be bubbles if it is a vucume leak you will hear and see the water being sucked in. i had a VL turbo that was making the noise you describe and it turned out it was head gasket related but it only did it on boost, and again not after the car was off. Another good way to find these noises is with a bit of tube that fits in your ear, (dont cram it in) and move the other end around where flanges and pipe connections are and it will work like a stethiscope. oh another thing a friend had a turbo deisel jakaroo and it was making this noise, it turned out there was a hole in the waste gate acctuator diaphram

Edited by Pun4N1
Djdirt Apprentice

Djdirt

Posted
  • Author
Posted

Cheers,

i will just change the gasket first and see if that fixes the issue, hopefully i dont gotta change/repair turbo, anyone had a garrett BB turbo die after 10 000- 15 000k? nissan just told me $80 but of course theres no stock in hobart as usual, cant get shit here it TAS.

Pun4N1 Explorer

Pun4N1

Posted
Posted (edited)

the ones that came on all skylines are BB garrett turbos so i guess 100,000 k's+ depends on maintaniance. 10,000 k's is a drop in the ocean man if it is brand new and has failed claim it on warranty dude. if you are going to pull your manifold off do hthe head studs too, they have a habbit of being made from cheese apparantly!

Edited by Pun4N1
Djdirt Apprentice

Djdirt

Posted
  • Author
Posted (edited)

just came home from work and more hissing FCK, dosent sound like its comin from turbo, its down lower but still hissing for quite a while after it turns off probably more that 10 secs about 20-25 is there no way this could come from another leak somewhere like BOV ect? dunno i got someone comin tomorrow anyway so i will keep youz posted.

cheers for all the help guys

Dirt

Also if it was turbo spinning after it turned off how long would it stay on?

And anyone know what sort of RPM a turbo spins at idle??

Edited by Djdirt

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

    • TurboTapin
      boost source Size Garrett gt28 gen2

      By TurboTapin · Posted

      You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • QB6SAGR
      Battle of the broken skylines

      By QB6SAGR · Posted

      Damn that was hilarious, and a bit embarrassing for skylines in general 😂 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
    • cosline
      R32 gtr transmission strength, billet plate

      By cosline · Posted

      Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Rezz
      Spotted on the street....

      By Rezz · Posted

      Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
×
×
  • Create New...