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Thread: 3.6 TDI V8 engine overheated best option rebuild or (try) to find replacement engine

  1. #1
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    3.6 TDI V8 engine overheated best option rebuild or (try) to find replacement engine

    Hi
    the 230km old 3.6 8 has overheated and now has exhaust gas in the coolant and pressurizing the coolant overflow bottle. No oil in coolant or coolant in the oil.
    Engine starts and idles smoothly, just cant drive it far!
    Local Landrover garages not keen on the repair and recommended replacing the engine, however cant find one for love or money.
    Has anybody gone down the rebuild route with one of these engines?
    Cheers
    Justin
    New Zealand

  2. #2
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    Quote Originally Posted by justinthorpe View Post
    Hi
    the 230km old 3.6 8 has overheated and now has exhaust gas in the coolant and pressurizing the coolant overflow bottle. No oil in coolant or coolant in the oil.
    Engine starts and idles smoothly, just cant drive it far!
    Local Landrover garages not keen on the repair and recommended replacing the engine, however cant find one for love or money.
    Has anybody gone down the rebuild route with one of these engines?
    Cheers
    Justin
    New Zealand
    I know nothing of this motor, but on most motors those symptoms are likely to mean at least a blown head gasket.

    Next is a blown head gasket and cracked/warped heads.

    Finally, both of those and some sort of bottom end problem.

    I'd be pulling the heads myself and taking a look, it will be a lot cheaper to repair if it's only head gaskets, you could take the heads to get tested, then go from there.

    Of course i do all my own work, so labour may get you on the repair vs replacement scenario.

  3. #3
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    It will be a body off job to remove the heads from the 3.6 in the L320. A brother recently removed the body from his to fix a leaking exhaust manifold gasket.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  4. #4
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    Quote Originally Posted by justinthorpe View Post
    however cant find one for love or money.
    very popular engine and not as common compared with the problems associated in the other variants, worth investigating a repair.

    how come body off ? because of turbos ?

    Im very interested in the cooking event, as ive installed an engine temp alarm on my old d2, but wasnt sure if needed on tdv8. I would have expected the car would give a warning if getting too hot.

    Was there any warning, can you please give a run down on the event and what you were aware was happening at the time and how it all came about ??

  5. #5
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    Body off because of no access to the exhaust manifold nuts.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  6. #6
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    Such a pita and shame, hopefully never have to do it though I've seen its not as scary or big job as one might think it's mainly that you need a hoist, though that hasn't stopped me from trying to dream up ways to do it without one...

  7. #7
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    Unhappy

    Quote Originally Posted by haydent View Post
    very popular engine and not as common compared with the problems associated in the other variants, worth investigating a repair.

    how come body off ? because of turbos ?

    Im very interested in the cooking event, as ive installed an engine temp alarm on my old d2, but wasnt sure if needed on tdv8. I would have expected the car would give a warning if getting too hot.

    Was there any warning, can you please give a run down on the event and what you were aware was happening at the time and how it all came about ??
    Hi
    My wife was towing a horse float with horse and all the associated gear, probably towing around 2.5-2.7 Tons.
    Driving through road works, going up hill going 20-25km/hr when vehicle lost power monetarily, then approx 300m again lost power but temp gauge had shot up and red warning light came on in the tem gauge. Had to drive a further 300m (very slowly) before she was able to pull off the road safely,
    I came out with my trusty 380000km D2 V8, swapped tow vehicles and so wife, trailer and horse carried on.
    The coolant bottle was empty, so refilled and bled the system and thought if was going to be ok. I started to drive back home and went for about 8km, started heading up hill and did the same thing so stopped and got a tow home.
    Had the coolant system tested and exhaust gas was identified in the coolant.....

    Found a second hand engine, the quote I got was for $21000 to swap the second hand engine in and the engine supplier wants the old engine in exchange as well. The engine by its self was $12075 rest mics gaskets etc and labour which is $7900.

    Safe to say I am not going ahead with this, ca buy a perfectly (touch wood) running L320 / L322 for less then this.

    I think I will have a go at this, just need to work out how to lift the body safely as I don't have a list at home.

    The 3.6TDI towed the horse trailer like it was not even there,

  8. #8
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    Quote Originally Posted by justinthorpe View Post
    Hi
    My wife was towing a horse float with horse and all the associated gear, probably towing around 2.5-2.7 Tons.
    Driving through road works, going up hill going 20-25km/hr when vehicle lost power monetarily, then approx 300m again lost power but temp gauge had shot up and red warning light came on in the tem gauge. Had to drive a further 300m (very slowly) before she was able to pull off the road safely,
    I came out with my trusty 380000km D2 V8, swapped tow vehicles and so wife, trailer and horse carried on.
    The coolant bottle was empty, so refilled and bled the system and thought if was going to be ok. I started to drive back home and went for about 8km, started heading up hill and did the same thing so stopped and got a tow home.
    Had the coolant system tested and exhaust gas was identified in the coolant.....

    Found a second hand engine, the quote I got was for $21000 to swap the second hand engine in and the engine supplier wants the old engine in exchange as well. The engine by its self was $12075 rest mics gaskets etc and labour which is $7900.

    Safe to say I am not going ahead with this, ca buy a perfectly (touch wood) running L320 / L322 for less then this.

    I think I will have a go at this, just need to work out how to lift the body safely as I don't have a list at home.

    The 3.6TDI towed the horse trailer like it was not even there,
    its quite the dilemma, if only there was an easier way,

    but you know I found out lifts are surprisingly not that expensive (and even cheaper used) when my neighbour installed one himself in his shed, (though you got to have suitable thickness slab or footings.

    defs not worth paying that for an engine only and all that labour, better off buying another, and just parting out the old one.

    what year is yours ?

    Quite sobering that there wasnt better warning, maybe it was sudden coolant loss or boiling from lack of coolant that triggered overheat.

    Did you find any coolant leak when you filled it back up ? Maybe it already had a head/gasket leak that was causing it to consume coolant. Did you ever check it and notice it was low ? as mine never changes.

  9. #9
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    actually you possibly could get away with putting a hoist on standard slab as you arent lifting a 3 ton car with it, just the cab...

  10. #10
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    You don't want a post to fall over. The leverage on the footing of the body up in the air, not just the weight needs to be considered.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

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