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Thread: Vnt exhaust impeller q.

  1. 26th August 2014, 07:58 AM #1
    Vern's Avatar
    Vern
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    Vnt exhaust impeller q.

    Took my rangie for a test run and this awful noise was coming from the turbo.
    So stripped it down (I had put a bearing kit in it ages ago and can't remember if I noticed the issue or not and was going to look into it) and noticed the steel disc that sits behind the exhaust impeller moves all over the place.
    So went through my box of stripped turbo's (2 more the same) and can't seem to find any extra parts that would retain this.
    Is it just sandwiched between the impeller and that cartridge? I wouldn't think so.
    uploadfromtaptalk1409007230639.jpg
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  2. 26th August 2014, 08:10 AM #2
    Dougal
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    Yep. They rattle around on my spare turbos too.
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  3. 26th August 2014, 08:13 AM #3
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    This is extremely noisy.
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  4. 26th August 2014, 08:41 AM #4
    Dougal
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    The two VNT's which are garage ornaments rattle, but I've never heard anything from the GT1646V on the skoda.
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  5. 26th August 2014, 09:21 AM #5
    workingonit
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    Small tack weld?
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  6. 26th August 2014, 09:33 AM #6
    Dougal
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    Quote Originally Posted by workingonit View Post
    Small tack weld?
    Perhaps a small shim, spring or washer instead.
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  7. 26th August 2014, 11:48 AM #7
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    My other vehicles with vnt's don't make noises.
    With a shim, the steel disc would wear as it spins agains the cartridge. A little confusing
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  8. 26th August 2014, 12:24 PM #8
    Dougal
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    Quote Originally Posted by Vern View Post
    My other vehicles with vnt's don't make noises.
    With a shim, the steel disc would wear as it spins agains the cartridge. A little confusing
    The heat shield should be stationary.
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  9. 26th August 2014, 01:17 PM #9
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    Yeah thats what I thought.
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  10. 26th August 2014, 02:28 PM #10
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    But how is it held there??
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