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Thread: 200tdi Turbo diagnosis

  1. #1
    AndrewGJones Guest

    200tdi Turbo diagnosis

    Hi,

    Diagnosing why my 200 tdi still seems to be overfueling (black smoke) and making a weird sound on boost; I think I'm getting closer.

    vanes pitted on leading edge;
    resize 10.2.4 (1).jpg
    another shot;
    resize 10.2.4 (2).jpg
    hole under screw ring clamp;
    resize 10.2.4 (3).jpg
    again;
    resize 10.2.4 (4).jpg

    ther is about 1.5 mm play in the turbo shaft side to side, no evidence of it hitting the casing though. back and forth it a bit more, maybe 2mm (all guessed) .

    My guess is it ingested bits of rubber and I'm looking at a turbo rebuild.

    I had hoped it was the dodgy crank breather set up that was filling the air filter with oil, but I've re positioned that after the filter now and it has a new air filter (obviously) but still the same sound and black smoke. It is manageable smoke and isn't at embarrassing levels (a few revs and being easy on the go pedal reduce most of it)

    Are these turbos recondition-able?

  2. #2
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    Interested to read replies on this one. Your vanes look only slightly worse than mine last time I looked at them. I remember reading that there should be no end float on the shaft so if you have 2mm I'm guessing rebuild or replacement.

    They are serviceable I remember seeing a service kit for sale somewhere. Although to service it you mights need specialist tools. Will see what others suggest, I'm off to wiggle mine for play.

  3. #3
    AndrewGJones Guest
    yeah, I think bolt fixing infront of the vanes looks like a specialist tool jobby to start with.


    I think the sound I'm hearing when it spools up is vibrations from the play and the vanes not having a clean edge. considering they would be moving at supersonic speeds on boost, I would think the airflow is getting pretty butchered by the leading edge damage. It would explain it struggling to breath and the over fueling.

    I'm just hoping that being it's first Oz summer it hasn't seen any over heating from the rich mix it has been running back in England.

  4. #4
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    If your tracking down smoke it could be a combo of issues. Getting the injectors tested shouldn't cost anything.

  5. #5
    AndrewGJones Guest
    I also found a post saying that the intercooler should be cleaned out every 100K kms, so the list goes on...

    The annoying bit is that it is supposedly a 'new' turbo fitted only 25000 miles ago. At the same time the service history says reconditioned injectors were fitted, which sound funny as I didn't think the injectors on these could be reconditioned?

  6. #6
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    It's a recent purchase to worth a good check over, clean and tidy up regardless of service history. Best way to get to know it.

    The injectors can be rebuilt but yours may have just been cleaned. Seeing as it takes a few minutes to take them off and a few minutes for the diesel shop to test them its worth doing IMO. Clean intercooler worth it also, if it is full of oil, you certainly have turbo issues.

  7. #7
    AndrewGJones Guest
    rebuild thread I found elsewhere;

    Jackual's 200TDi turbo rebuild guide - Land Rover Zone

    vs new turbo

    Land Rover Defender 200Tdi Turbocharger / Turbo Kit | eBay

    if I can get it done in the 6 hours the bloke in the first thread did, I'm still not ahead because I need a new impeller as well

    something like this;

    Turbocharger Rebuild parts spares - Aftermarket Garrett GT25 Compressor Wheel

    it may just pay to get a whole new one. As reading else where there are other things (cracked casings etc) to look out for.

    The other thing that comes to mind is when I get the EGT gauge, I may as well pull the turbo off completely and assess it properly then. I've got a few weeks up my sleave before I no longer have my work ute to get around in, so may as well pull the radiator and intercooler, do the timing belt etc

    still deciding if this is fun or not...
    Last edited by AndrewGJones; 10th February 2013 at 12:43 PM. Reason: more rambling

  8. #8
    AndrewGJones Guest
    The sums look something like this;

    rebuild kit $300
    compressor blade $160
    my time -priceless!
    balancing $100 (I'm in perth, could be twice that!)
    possibly finding it has other problems from the vibrations (bearing housing worn, etc, cracks near waste gate (apprantly something to look for, and I haven't even seen the exhaust side yet)

    could end up being worth just dropping the money and getting the new one.

    won't know i guess until I pull it all apart.

  9. #9
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    You can get a new Garrett cartridge off the bay, or obtain a new TD04 MHI turbo that is a lot more efficient for not much more.
    I bought a new Td04 cartridge for the neighbours Trytoo 18 months ago, (roughly $400)
    It was a straight plug and play scenario into the old housings.

    I'll see if I can find the correct TD04 model # for the Tdi or JC may have the numbers floating around.

  10. #10
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    Quote Originally Posted by AndrewGJones View Post
    rebuild thread I found elsewhere;

    still deciding if this is fun or not...
    Endless fun

    If your turbo is truly shagged and in two weeks it becomes your daily drive then I would be tempted to order a new one in too. Whilst you wait for delivery you can do the timing belt, clean up the IC, have a good hunt around, service her up. To pay someone else to do all that work would probably be as much as a new turbo!? When the turbo arrives just swap it on and away you go. Much less stress.

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