Discovery 3 Building a mechanically reliable TDv6 Engine





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  1. #1
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    Default Building a mechanically reliable TDv6 Engine

    Dear Fellow online community

    I come to you knowledgeable folks looking for tips & tricks evens some sorcery, on building a mechanically reliable discovery 3 TDV6 Engine

    any info will be deeply appreciated!!

    briefly, this is the 2nd time my engine kicked the bucket. First, the head gasket blow as a result of a cracked plastic thermostat housing, this was back in 2014

    in December last year, the engine seized up. since then it's been parked in a garage waiting for me to start working on it

    I am now in a position to commence work hence the reason for me asking for advice before proceeding

    thanks in advance

  2. #2
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    Default Re: Building a mechanically reliable TDv6 Engine

    Did the crank snap? What caused the second failure?
    Last edited by lizardalpha; 2020/02/17 at 02:12 PM.
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  3. #3
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    Default Re: Building a mechanically reliable TDv6 Engine

    Most important aspect is finding the cause of the initial failure...

    2006 Discovery 3 TDV6.
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  4. #4
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    Default Re: Building a mechanically reliable TDv6 Engine

    I will start stripping this weekend all that I know for sure is that the engine is sized

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    Default Re: Building a mechanically reliable TDv6 Engine

    Unless something has changed, I was under the impression rebuild parts for these motors werenít available, and the only option was a sub assembly from LR. Has this changed? Are parts for this motor available now?

  6. #6
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    Default Re: Building a mechanically reliable TDv6 Engine

    Quote Originally Posted by RPiet View Post
    Unless something has changed, I was under the impression rebuild parts for these motors werenít available, and the only option was a sub assembly from LR. Has this changed? Are parts for this motor available now?
    Different issue than the crank one I believe.
    2004 LR Discovery 2 Td5 GS - Hybrid Turbo, Intercooler, 33's, 2" Lift, V8 TC, Ashcroft CW&P 3.75 + ATB lockers. [GoldiloX]
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    2010 LR Discovery 4 V8 HSE - Lifted with IIDtool, Powered by Petrol and Running on Cooper AT3 LT (new spec) 265/65/18s [Imvubu] - SOLD

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    Default Re: Building a mechanically reliable TDv6 Engine

    Quote Originally Posted by douglash View Post
    Different issue than the crank one I believe.
    OP clearly stated engine is seized.... whether crank or not, itís going to need a bottom end rebuild. Pistons/Rings/bearings etc.

    if itís become possible to rebuild this motor instead of buy a sub assembly from LR, thatís good news

  8. #8
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    Default Re: Building a mechanically reliable TDv6 Engine

    Quote Originally Posted by hound View Post
    Dear Fellow online community

    I come to you knowledgeable folks looking for tips & tricks evens some sorcery, on building a mechanically reliable discovery 3 TDV6 Engine

    any info will be deeply appreciated!!

    briefly, this is the 2nd time my engine kicked the bucket. First, the head gasket blow as a result of a cracked plastic thermostat housing, this was back in 2014

    in December last year, the engine seized up. since then it's been parked in a garage waiting for me to start working on it

    I am now in a position to commence work hence the reason for me asking for advice before proceeding

    thanks in advance
    I know that many manufacturers use plastic thermostat housings but isn't that a recipe for disaster?

    Losing coolant and the consequent overheating kills a lot of engines.

    If you really want to sell an expensive SUV with a plastic thermostat housing , it better be so good nobody will ever have to complain.

    So my advice is: see if there's an aftermarket aluminium stat housing for the TDV6.

    Start with basics.

  9. #9
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    Default Re: Building a mechanically reliable TDv6 Engine

    Quote Originally Posted by tashtego9 View Post
    I know that many manufacturers use plastic thermostat housings but isn't that a recipe for disaster?

    Losing coolant and the consequent overheating kills a lot of engines.

    If you really want to sell an expensive SUV with a plastic thermostat housing , it better be so good nobody will ever have to complain.

    So my advice is: see if there's an aftermarket aluminium stat housing for the TDV6.

    Start with basics.
    Hi Tashtego

    yes that is available from OZ. Not cheap, but seems to be a bullet proof mod.

    https://triumphroverspares.com.au/product/water-outlet/
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    Last edited by hgbosch; 2020/02/18 at 07:52 AM.
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