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Thread: Z20NET - exhaust manifold studs and nuts

  1. #1
    Regular 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

    Default Z20NET - exhaust manifold studs and nuts

    i have some studs work loose on my exhaust manifold. A couple of years ago we had my manifold off when we upgraded to turbo to the 16T, the existing studs and nuts were re-used.

    Can i use some type of high temp red threadlock on them or should i just replace them?

  2. #2
    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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    I just bought two new studs (as spares in case I snap any over the weekend) from Vauxhall, £4+ each!!!
    "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)...

  3. #3
    Regular 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

    Default

    Yeah, i just got off the phone with mine and have ordered a set of 24418771 studs (pack of 10) and the 11516076 M8 Nuts (pack of 10).. They also sell 50ml of the threadlock compound which is a stock item so I will buy one of those as well.. They expect to have them in for saturday morning but I need the engine cold to be able to do this job so may start the strip down on saturday afternoon when they have all left and complete on Sunday ready..

    I could just put some compound on my existing studs, but I have a spare new manifold gasket floating around so may as well change that as well. This is not going to be a fun job to do on my own...

    btw the studs were about 80p each + vat.. and the nuts were half that.. are yours gold plated of something or have been passed through a jungle cats guts like some expensive coffee?

  4. #4
    Ex Vec-C Admin Ian-Highlander's Avatar
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    Vehicle : Insignia Tourer

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    Yeah got to admit I'm concerned he's ordered me the wrong things, I thought they were ridiculously priced at the time. Just threw it in as a last minute thing when I was ordering the gasket and seal kit for the new turbo and a few other bits I'm going to need this weekend.
    "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)...

  5. #5
    Regular 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

    Default

    http://www.opeloem.com/vauxhall/sign...ol_engine.html

    the studs on the manifold to turbo are not separate items for some reason, hopefully you will be ok..

  6. #6
    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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    *crosses fingers*

    Won't be putting the new map on until I'm sure it's all in and done, because if I have to reset it back I'm stuffed as when I re-synched my Maptuner to download the new stage 3 map I think (although haven't checked) that it removed all the old maps I had on it so I won't have the old stage 2 map to put back on again. Previously it's left them all on it but don't think it did this time round.
    "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)...

  7. #7
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    Default

    I don't think your stage 2 will work with the bigger turbo anyway, if it's designed for the Garrett then it'll be too aggressive when coupled with the Mitsi.

  8. #8
    Ex Vec-C Admin Ian-Highlander's Avatar
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    Vehicle : Insignia Tourer

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    Year : 2010

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    Yeah it was more for if I have any major issues fitting the Mitsi and end up having to put the garret back on temporarily lol, but as I say I just won't drop the stage 3 map on until I'm sure everything's fitted and in place.
    "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)...

  9. #9
    Ex Vec-C Admin Ian-Highlander's Avatar
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    Vehicle : Insignia Tourer

    Trim : Elite

    Engine : 2.0 CDTI (160ps)

    Year : 2010

    Default

    It was the manifold to turbo studs he'd ordered in (basically look almost identical to exhaust manifold studs but the short end is even shorter). I said I didn't want them so they've kept them. He looked up the manifold studs, sure enough 88p each at full retail, ridiculous how Vauxhall can charge £4.90 ish for what is basically the same thing even the guy at the dealers couldn't believe it.
    "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)...

  10. #10
    Regular 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

    Default

    I think my manifold gasket is ok but,, I thought thats where my leak was but after whipping the turbo off i found the gasket that sits between it and the manifold is shot to pieces....


    the old and the replacement
    IMG_2537.JPG

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