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  1. #1
    VXRed
    Join Date
    24th August 2016
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    129

    Default Another turbo leaking oil...

    So when I first got the car the turbo was knackered and pissing oil. I was going to do the change myself but 2 of the studs had snapped in the head and I wasn't confident drilling them out so paid a independent Vaux specialist to do it.

    Anyway just over 6,000 miles later I'm smelling oil in the cab again and notice it's damp around the turbo. I recently had a stage 2 remap and have removed both cats from the exhaust. Could this be oil getting past the seals due to low back pressure? I notice more after I have given the car a good pull. Should I try restrictor bolt?

    Can't think why it would fail again so soon? Garage assured me they primed it and I always warm it up and cool down properly 😣


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  2. #2
    Are you VXR enough?
    Join Date
    3rd May 2015
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    971

    Default

    Are you sure it's not the oil return pipe leaking mate ???

  3. #3
    VXRed
    Join Date
    24th August 2016
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    129

    Default

    Yeah I don't think so, it had all new washers and is the new style. No oil at the bottom of the pipe on block and seems to just be damp around the turbo. On the rollers before hitting max revs a bit of smoke out exhaust and also when they let off but then cleared. I had the valve stems done at the same time and they thought that might be oil left in the system from that :/


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  4. #4
    VXR enough Ant21's Avatar
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    29th September 2013
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    1,281

    Default

    Try an oil restrictor.

    I asked Warren about this and he said it's due to the oil pressure pushing it out of the turbo core. Mines a brand new GM turbo too

  5. #5
    VXRed
    Join Date
    24th August 2016
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    Default

    Did that fix yours? I've got a tx autosport one somewhere might try that


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  6. #6
    VXR enough Ant21's Avatar
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    29th September 2013
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    Default

    If I'm honest I've not even tried yet. Mine is hardly leaking at all and plus I don't use it that often

  7. #7
    VXRed
    Join Date
    24th August 2016
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    129

    Default

    Anyone else experienced this after map and full decat? Don't want to waste time on the restrictor bolt if the turbo is knackered. Are there any things to check to confirm? I bought the turbo less than a year ago so should still be in warranty.


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  8. #8
    VXRed blooded Seanwebb68's Avatar
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    31st July 2014
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    363

    Default

    If brought from Vauxhall they are normally covered for a year or 12k miles which ever comes first.


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    Tuned By Rabbid Remaps

  9. #9
    VXRed
    Join Date
    29th February 2016
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    68

    Default

    Quote Originally Posted by mfezzer View Post
    So when I first got the car the turbo was knackered and pissing oil. I was going to do the change myself but 2 of the studs had snapped in the head and I wasn't confident drilling them out so paid a independent Vaux specialist to do it.

    Anyway just over 6,000 miles later I'm smelling oil in the cab again and notice it's damp around the turbo. I recently had a stage 2 remap and have removed both cats from the exhaust. Could this be oil getting past the seals due to low back pressure? I notice more after I have given the car a good pull. Should I try restrictor bolt?

    Can't think why it would fail again so soon? Garage assured me they primed it and I always warm it up and cool down properly 😣


    Sent from my iPhone using Tapatalk
    Dear,
    here some tips may help you:

    -Turbo's lubrication is by gravity, so if you have much oil back pressure from the oil pan, the oil in the turbo's catridge begins to accumulate so you can start to burn oil.
    So make sure this:

    A) verify the oil leve. It must be in the middle, no more nor less.

    B) try to tight the 10mm bolts of the Turbo's housing. You can acces to 3 of the 4 bolt without unmount the turbo.

    C) check the rocket return hoses: If the gases return hose is damaged, you can experiment more pressure in the oil pan and even de pipe damage can be one reason for the oil smell in the interior.

    D) importan too. Check for turbo oil return pipe damages. Any damage implies oil leak and oil burn.

    Also I recomend you this:
    unmount the precat pipe and check out for some oil leak in the turbine housing side or some crack in the manifold housing.

    I hope this help.

    If you oil level is ok and your return hose is in good condition, also the turbo oil return pipe is ok, so just in that case unmount the turbo for a service.

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