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  1. #1
    I'm new here, please be nice XOPCX's Avatar
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    Astra j OPC gearbox

    Hey guys,

    My OPC has started to make a whine notice in 1st and second gear and have a clunk at take off sometimes and when going over bumps. It's only done 3,300km and had the clunk since I got it but the whine is new. Help please Click here to enlarge


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  2. #2
    I'm new here, please be nice XOPCX's Avatar
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    Astra j OPC gearbox

    Or Is this normal and it's just taken me a while to notice?

  3. #3
    OpelAus Forum Regular
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    its cactus, take it back to the dealer ASAP

  4. #4
    OpelAus Enthusiast nigelh's Avatar
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    Nothing unusual about a small amount of gear whine. One thing you might want to consider is adding a bit more oil to the gearbox because from the factory they only come with 1.8L, when I first got mine I added 1L then when I drained it on the 6 month service I filled it with 3L.

    The clunk don't know maybe a engine mount or something is a bit loose. Maybe check all the engine mounts and suspension bolts and make sure there tight. I did this with mine when I first got it, didn't find any loose but worth checking anyway

  5. #5
    I'm new here, please be nice XOPCX's Avatar
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    Thanks heaps. I'll add some more oil tomorrow Click here to enlarge


    Scorpion turbo back non res
    RSS springs
    RSS cold air induction kit

  6. #6
    OpelAus Forum Regular corsa b combat's Avatar
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    Since you have an aftermarket exhaust,did you check if it is secured properly?Could be the reason why it makes a cluck noise when going over bumps.
    2013 Magma red Corsa OPC, stage 1 software, Dbilas flowmaster, custom 2 pod centre vent gauges.TRC front splitter 3" Dbilas exhaust Racing version,Dbilas uprated FMIC.

  7. #7
    I'm new here, please be nice XOPCX's Avatar
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    Nah coming from engine. Been like it since new


    Scorpion turbo back non res
    RSS springs
    RSS cold air induction kit

  8. #8
    I'm new here, please be nice XOPCX's Avatar
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    Hey where is the trans plug to check oil level? Can't seem to find it?


    Scorpion turbo back non res
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    RSS cold air induction kit

  9. #9
    OpelAus Forum Regular corsa b combat's Avatar
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    I dont think the f40 came with a level indicator.
    2013 Magma red Corsa OPC, stage 1 software, Dbilas flowmaster, custom 2 pod centre vent gauges.TRC front splitter 3" Dbilas exhaust Racing version,Dbilas uprated FMIC.

  10. #10
    I'm new here, please be nice XOPCX's Avatar
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    It dosent. I called regal. FML. I'll drain it tomorrow. I was advised it takes 2.5l


    Scorpion turbo back non res
    RSS springs
    RSS cold air induction kit

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