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Thread: Servo pushing oil through turbo

  1. #1
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    Vehicle : Vectra

    Trim : Edition 100

    Engine : 2.0T

    Year : 04

    Default Servo pushing oil through turbo

    Hi all,

    Got a bit of an oil problem. lately ive noticed im getting blue smoke through the exhaust. So, I took of the inlet pipe and found oil inside it and also in the turbo inlet. I checked all the pipes i could and found all where dry apart from the T junction coming out the vacum. I cleaned it up but it keeps coming back. Today whilst driving home, i noticed a lot of smoke when i braked to a stop. Could it be something in the vacum leaking oil into the breather, then when I brake, it gets pushed down a breather (pressure from the servo pipe to T junction vacum pipe) and then into one of the 2 small breathers on the inlet pipe. My guess is a fault in the vacum????

    The has been gradually been getting worse

    Also, after driving for an hour or so when the engine gets warmed up, the car seems to loose all the power when setting off from a standstill. it takes alot of clutch work to get going. Ive just replaced both boost sensors but not had chance for this to see if this the problem. Maybe this could be related the above problem??

    Any help would be greatfully appreciated

    Regards

    Jim

  2. #2
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    Default

    Firstly, I'm not a mechanic, so my experience is limited to the 1.9cdti mostly as I've had more than my fair share of trouble with them. So excuse any flawed ideas below, but thought I would give you a few ideas to go on...
    Not sure what engine you have, but oil into/around the turbo inlet could be faulty turbo seals allowing oil into the intake system. May not explain the oil in your vacuum line though.
    On the 1.9cdti engine - not sure about others - the vacuum pump is situated on the end of the cam shaft and if the seals from this leak then you could end up with oil in your vacuum pipes.
    Lastly, are you sure that you don't have a breather pipe from the camshaft cover back into the air intake just prior to the turbo? This could be a sign of high pressure in the cam casing forcing oil back through the breather. A compression/leak test may help diagnose this sort of problem if there is a leak from the cylinders (piston rings, valves etc...).
    Hopefully someone with a bit more experience can help more. Good luck!

  3. #3
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    Vehicle : Vectra

    Trim : Edition 100

    Engine : 2.0T

    Year : 04

    Default

    Engine is z20net

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    Trim : Design

    Engine : 1.9CDTi

    Year : 2005

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    Default

    Take a couple of vacuum pipes completely off and blow through them. If you get oil dripping out then it sounds like a knackered vacuum pump. From your profile it says you have an edition 100 which will be the 2.0 turbo. Only know where the vacuum pump is on the 1.9 CDTi so can't help you with a location.

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    Vehicle : Vectra

    Trim : Edition 100

    Engine : 2.0T

    Year : 04

    Default

    Ive checked all the hoses and the only oil i found was at the vacum connection. all other pipes were dry and clear.

    Ive been reading a few other threads and found that the vacum o ring can perish, which coincidentally the vacum was removed recently when the cam chain was replaced.

    Tomorow ill strip it down to check the vacum and o ring.

    Anyone got a part number for the o ring?

    Regards

    Jim

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    Vehicle : Vectra

    Trim : Edition 100

    Engine : 2.0T

    Year : 04

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    Does the vac pump have any other o ring apart from the one in the pic?


  7. #7
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    Quote Originally Posted by cont1204 View Post
    Take a couple of vacuum pipes completely off and blow through them. If you get oil dripping out then it sounds like a knackered vacuum pump. From your profile it says you have an edition 100 which will be the 2.0 turbo. Only know where the vacuum pump is on the 1.9 CDTi so can't help you with a location.
    Wheres this vac pump? I like to learn as i go! :-)

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    Vehicle : Vectra

    Trim : Edition 100

    Engine : 2.0T

    Year : 04


  9. #9
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    Default

    Again, I don't know anything about your engine or vacuum pump, but the large shaped seal must only be for leakage to the outside world - i.e. won't leak into you vacuum pipes. I would have thought that there must be internal seals that perish.

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    Vehicle : Vectra

    Trim : Edition 100

    Engine : 2.0T

    Year : 04

    Default

    Ive removed, stripped and cleaned the vac pump. inside theres no seals, the oil should flow back through a hole into the engine. Hopefully claning it out may have unblocked the hole and the oil will not be forced through the breather. ill give it a week or so to see how it goes. If it carries on ill replace the vac pump.

    Thanks for your input

    Jim

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