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Thread: Signum turbo wastegate help

  1. #1
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    Default Signum turbo wastegate help

    As the title really. Have pre facelift signum 2.0t, garrett turbo I believe. I need to purchase the wastegate diaphragm repair kit but can not find a part number or after market kit anywhere. My local dealer even told me they are no longer available as it is an older car! Would anyone have a part number or link to somewhere I can get hold of this? Any help would be appreciated!

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    Ex Vec-C Admin Ian-Highlander's Avatar
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    Vehicle : Insignia Tourer

    Trim : Elite

    Engine : 2.0 CDTI (160ps)

    Year : 2010

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    @Caveman_nige is probably the best man to ask, he should be along shortly if he gets this notification
    "Doing a good job here is like wetting your pants in a dark suit, you get a warm feeling but nobody else notices"
    Maptun Tuned 2.0T Estate - click HERE for mods list.
    Brentwood 2012: Winner, Saturday Show. Hull 2012: Winner, Best Estate. Hull 2013: Winner, Best Estate & Runner Up, Best I.C.E

    Now Gone, bring on the Insignia (now "Teapot" Tuned)...

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    Thanks, caveman nige has given me good advise in the past, just drawing a blank with this one. Even the name of a parts dealer that knows what there talking about would be a decent start!

  4. #4
    VIP-Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

    Trim : top of the line in both

    Engine : Z18XE,Z19DTH,Z20NET

    Year : 2006

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    http://www.vectra-c.com/forum/showth...ight=diaphragm

    post 8.. @Rebellion had to buy one recently, so he knows where and what part numbers etc.. If he does not pop along you can send him a PM, I am sure he will come back to you with good info.

    HTH
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    Regular Member Handyandy-UK's Avatar
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    Vehicle : BMW 525i

    Trim : SE Touring

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    Quick Google gave me places like this : http://www.turborebuild.co.uk/p/cate...cts+and+parts/

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    Hi, have spoke to rebellion but not sure if he has the part numbers thanks. Anyone else help out?

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    Hi mate, have looked at this site. Am I being thick but I can't seem to find the correct part?! Couldn't see the spring and diaphragm as a kit.

  8. #8
    VIP-Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

    Trim : top of the line in both

    Engine : Z18XE,Z19DTH,Z20NET

    Year : 2006

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    Quote Originally Posted by redryan View Post
    Hi, have spoke to rebellion but not sure if he has the part numbers thanks. Anyone else help out?
    Basically you need to take your turbo off to investigate this problem. You have had this problem for a while now and mentioned it on other threads, i would not have been handle the fault for a single day.

    Have a read of this thread.. http://www.vectra-c.com/forum/showth...ight=diaphragm

    don't bother asking duncan anything though as he does not come on this forum anymore.. Although most of the posts in there are useless and just people blowing sunshine up his rear end, there are some useful bits of info buried in it..

    Its going to cost you whatever it is.. You could just buy a replacement recon turbo and just swap them over so you can trade in the old one etc. personally I would get a bigger better turbo plus lines and a remap.
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    Sorry for the delay, couldn't find the invoice with the part number on it, so resorted to using EPC. You need 55558271 - if you can get it for less than £100, you're doing well, as the full retail price is circa £175.

  10. #10
    Ex Vec-C Admin Ian-Highlander's Avatar
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    Vehicle : Insignia Tourer

    Trim : Elite

    Engine : 2.0 CDTI (160ps)

    Year : 2010

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    Also worth noting that I got the same error on mine and it was actually the wastegate had come loose on the actuator arm (Duncan had his fall off completely on his Garrett 2052). The Garretts seem to be prone to this as they get older.

    Rather than pay all the costs involved to repair/replace it, I just bought the Mitsubishi TD04L14T and the map upgrade. High pressure turbo instead of low pressure and a lot more oomph keeps me smiling every time I get behind the wheel.

    Edit: ahh, that's the thread of Duncan's from a few years back that Nige has linked to in fact.
    "Doing a good job here is like wetting your pants in a dark suit, you get a warm feeling but nobody else notices"
    Maptun Tuned 2.0T Estate - click HERE for mods list.
    Brentwood 2012: Winner, Saturday Show. Hull 2012: Winner, Best Estate. Hull 2013: Winner, Best Estate & Runner Up, Best I.C.E

    Now Gone, bring on the Insignia (now "Teapot" Tuned)...

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