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Defender td5 10P - no air pressure

Discussion in 'Defender 90 / 110 / 130' started by dinisrosa, Jan 12, 2022.

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  1. Interceptorxj

    Interceptorxj Well-Known Member

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    DON'T just fit a new turbo without checking the oil feed to it. If there is a problem with the oil feed/pressure you will just end up with another seized turbo.
     
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  2. dinisrosa

    dinisrosa Member

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    Hello guys

    Unexpected developments from this!

    So, I've disconected the hoses, got to the front part of the core with fingers and realised that it was indeed stuck, so the Tim's suspicion was correct. But not completely stucked (like a 1/5 of a turn or so).

    I'm not comfortable with turbos (or even engine inside parts), but yesterday I studied the lesson to disassemble and rebuild it with a new core (which was my plan, as soon as I was sure the bearings were gone) that I would order today.

    But when I stripped the turbo, I found something inside it that really shoudn't be there: a blanking plug, or something like that, making it impossible to spin! Please see pics.

    The only way this object had to get there was from the exaust manifold, as it couldn't pass to (or come from) the the other chamber that connects to the exaust.

    So, this was the sound I've heard.

    I ask myself how does that thing got there.. I did took off the manifold when I deleted the EGR due to the usual broken bolt when blanking. But it's very hard to me to believe that it could get in accidentaly, but I want to believe it was the case..

    Also maybe it was already there for some reason and, when the car fell from the lift, the piece moved or something.. I don't know.

    Could that thing came from the inside of the engine??

    Anyway, I gave it a good clean, reassembled it - it spins well with no playing (just the expected little bit) - and fited it on the car. In the moment I the engine started I noticed it was alive again, by the sound that came from the exaust.

    Tested drive it, and I have my td5 back again!

    I'm really happy for this ending (I hope I can call it like that), but, at the same time, worried about the origin of that plug..

    What's your thoughts? Am I missing something?
     

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  3. dinisrosa

    dinisrosa Member

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    Having a look at the diagrams, I can relate it to part 37D2260L but I can't figure out how it got there.
    Plus, no other consequences or symptoms can be seen or noticed at the moment..
     
  4. flat

    flat Well-Known Member

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    Just put the turbo back together and make sure it has oil flow.
    That cap could have fallen in at any point over the last 2 years I guess
     
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  5. Tim4x4

    Tim4x4 Well-Known Member

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    Great result problem identified as flat said could be from anywhere. Check for damage if ok get it back together and enjoy
     
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  6. flat

    flat Well-Known Member

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    And thank god it was a piece of plastic not a metal bolt or nut or something :eek:
     
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  7. dinisrosa

    dinisrosa Member

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    Its not plastic! Its metal, with a pretty thick wall. I believe turbo wouldn’t bend it like that, but reaching a certain temperature, it could get easier to be bended actually..
     
    Last edited: Jan 15, 2022
  8. dinisrosa

    dinisrosa Member

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    Just coming from a drive. Everything seems working fine!
     
  9. potus

    potus Well-Known Member

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    Look's like a core plug?
     
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  10. dinisrosa

    dinisrosa Member

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    It is! Like this one..
     

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  11. flat

    flat Well-Known Member

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    wow sh1t i thought it was plastic! You were lucky it didn’t obliterate your turbo :eek:
     
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  12. Scooby22

    Scooby22 Well-Known Member

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    Did you put the damaged turbine cartridge back in, turbine blades are very finely balanced and any damage will cause serious trouble if you continue to run it like that, I would not risk driving it like that. They can spin at upto 200,000 rpm.
     
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  13. dinisrosa

    dinisrosa Member

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    I did. I gave the cartridge a good clean with pressurized brake cleaner (actually connected to an air compressor) to be sure nothing would stay there.
    There's very obvoius scratches on the exhaust side blades, as image shows, and of course this could cause some amount of unbalance.. Shop mechanics, in their oppinion, told it would work with no problems.
    Holding the cartridge on my hand, I spinned the blades with pressurized air until a very very high rotation, just a bit, and tried to feel something. It spinned smoothly with no vibration I could feel..
    But of course this was NOT a scientific test and there is no way I can be sure it's ok, to the point I'm actually considering installing a new cartridge (a Meat & Doria one, for aprox 140€)... Repair the original one would be way more costly.
    But everything looks to be working normally now, except something I noticed today which I'm not sure it can be related: that "cricket" sound that normally comes from a td5 exhaust without the central silencer (as mine), has increased just a very little bit when in idle and a little bit more metalic too.. Plus, there's an also a very little bit more "roar" I can hear when driving, which I'm gessing it can be related to the fact that I didn't use new seals to the manifold and exhaust flex pipe (I've just cleaned them, but I'll order new ones).
    Could this "cricketier" sound or even the tiny increase of "roar" be related with those scratches and an eventual unbalanced cartridge?
     

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  14. Scooby22

    Scooby22 Well-Known Member

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    They are more than scratches, more like gouges and looks like major damage as far (as turbo blades are concerned), a turbo specialist would throw that cartridge in the scrap bin, you may get away with running it for a while but I would think the bearing will suffer damage before too long. If it were my Defender I would invest in a new cartridge and seals and bearings. It is a mystery where that core plug came from and how it managed to get there, maybe it dropped in the pipe work from your garage when you had it to bits and you never noticed when putting it back together.
     
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  15. Brown

    Brown Well-Known Member Full Member

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    I wouldn't trust that turbo either. It's had a nasty shock, and I wouldn't want to risk it breaking up at speed. For the price of a new one it's not worth the risk. As well as possible further engine damage, there's the possibility that it'll break up when you're doing something where you really need acceleration, like filtering into a stream of faster moving traffic off a motorway slip road with catastrophic consequences.

    Sorry to sound pessimistic but Land Rovers break down quite frequently enough anyway, so I'd try not to make it worse by fitting parts with known faults.
     
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  16. dinisrosa

    dinisrosa Member

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    Good morning

    Actually I recognise there’s a high risk here and I just order a new turbo core yesterday.. I didn’t came so long on this rebuild to now live with this concern on my head.
    If I even balanced my propshafts, it really doesn’t make sense to keep with a very probably unbalanced turbo. l’ll evaluate the possibility of repair it in the future and keep it for spare though, if it worths.

    Thanks again to everyone!
    Dinis
     
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  17. stumpyj

    stumpyj Active Member

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    Hi mate - just make sure u inject oil into the turbo with a syringe before you start up ur Landy! When I rebuilt my TD5 I put a reconditioned turbo on and there was an A4 piece of paper in the box with this written in capitals! Good luck mate
     
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  18. dinisrosa

    dinisrosa Member

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    The one I ‘ve ordered is a brand new one, but even if it doesn’t come with that warning, I’ll do it anyway. It won’t hurt for sure.
    Thanks for the tip!
     
  19. dinisrosa

    dinisrosa Member

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    Hello, guys

    New core fitted. Landy runs just the same way, but the little “roar” has gone (maybe due to the new gaskets) and little extra “cricket” sound too.
    All seems pretty normal now, so, case solved.

    Thanks for your help!
     
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