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Thread: Why do 2.7 cranks break?

  1. #1
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    Why do 2.7 cranks break?

    It certainly appears to be a minimalist design, possibly taken too far.

    If you don't like trucks, stop buying stuff.
    http://www.aulro.com/afvb/signaturepics/sigpic20865_1.gif

  2. #2
    Join Date
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    *Unless things are very different in the U.K most failed engines don't actually break the crankshaft. (i would have thought heat stress in Australia is far harder on engines)
    *Out of over 30 engine replacements now I have had 2 that broke the crankshaft.
    *I have had some incredibly damaged engines, where conrods have melted, conrods punched through the block, conrods that have jammed between the crankshaft and the block, conrods and crankshafts that had turned blue, none bar 2 have broken the crankshaft.

    *The V6 split crank design has always been rubbish, search and you will find that broken crankshafts on V6 engines is certainly not a unique thing to Land Rovers.
    Regards
    Daz


  3. #3
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    Quote Originally Posted by DazzaTD5 View Post
    *Unless things are very different in the U.K most failed engines don't actually break the crankshaft. (i would have thought heat stress in Australia is far harder on engines)
    *Out of over 30 engine replacements now I have had 2 that broke the crankshaft.
    *I have had some incredibly damaged engines, where conrods have melted, conrods punched through the block, conrods that have jammed between the crankshaft and the block, conrods and crankshafts that had turned blue, none bar 2 have broken the crankshaft.

    *The V6 split crank design has always been rubbish, search and you will find that broken crankshafts on V6 engines is certainly not a unique thing to Land Rovers.
    Have you have any that were rebuildable in same block with new parts or were all of these were throw away?

  4. #4
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    Quote Originally Posted by PerthDisco View Post
    Have you have any that were rebuildable in same block with new parts or were all of these were throw away?
    Not too many that I remember, the big issue is...
    *Labour cost to rebuild one.
    *Find me a good engine rebuilder in Perth.

    *I used to use M & D Engineering they were rebuilding Land Rover engines when I was in high school (closed up shop).

    P.S and find me a customer that is willing to spend the dollars to rebuild an engine rather than fit a Territory engine, tow in drive out everything done for $10K.
    One day there will be no good engines and a rebuild will be the only option.
    Regards
    Daz


  5. #5
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    I reckon its cause of the heat treating, may explain why some are immune and some get it.
    Totally anecdotal of course, but our family D4 2.7 has 200,000km and hasn't broken it. I tow the race car with it often and give it the beans with no remorse, i.e. absolute full throttle for 5+ minutes at a time up big highway hills. Yet another fella had his break when he was a marker car for an oversize truck, doing 40kmh with it basically idling.

  6. #6
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    Quote Originally Posted by econti View Post
    I reckon its cause of the heat treating, may explain why some are immune and some get it.
    That was the original Landrover response/excuse, but if that was true they would have stopped lunching bottom ends after they found/rectified the issue with the supply chain.

  7. #7
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    Quote Originally Posted by econti View Post
    I reckon its cause of the heat treating, may explain why some are immune and some get it.
    Totally anecdotal of course, but our family D4 2.7 has 200,000km and hasn't broken it. I tow the race car with it often and give it the beans with no remorse, i.e. absolute full throttle for 5+ minutes at a time up big highway hills. Yet another fella had his break when he was a marker car for an oversize truck, doing 40kmh with it basically idling.
    I've never seen a failed D4 2.7, just like in a Ford Territory unheard of. I have customers that have clocked up past 350K and going strong.
    Regards
    Daz


  8. #8
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    Also the guy in the video reckons service good or bad has nothing to do with it.
    I think thats bull though, Ive got customers with D4 3.0lt with over 200K that have had good servicing and going faultless. I mean good as in every 10K servicing.
    Regards
    Daz


  9. #9
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    Quote Originally Posted by DazzaTD5 View Post
    Also the guy in the video reckons service good or bad has nothing to do with it.
    I think thats bull though, Ive got customers with D4 3.0lt with over 200K that have had good servicing and going faultless. I mean good as in every 10K servicing.
    Given (and I know of quite a few) D4s were sold with servicing package included in some corporate deal these over serviced 3.0s will be unicorns after they switched from 6 months or 15k kms in the D3 days.

  10. #10
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    Not sure if the 2009 D4 TDV6 is any different to the 2008 D3 TDV6, but i know someone who has 2009 D4 with +330k on it that has done many of the major offroad treks in the country towing a camper trailer , guessing +1000kg.

    Would be interested to know if his engine is any different to my 2008 D3. The reason i bring this up is it seems that its commonly said the D4 doesnt seem to suffer the fate of the D3 engines.

    On a side note, i travel about 2000ks a week in a road train servicing roadhouses, cattle stations and a few towns and mine sites up and down the stuart hwy from darwin , and several months ago we had the caravan/ camper invasion from every state in the country, to the point where even the roadside stops were overflowing by 3pm. the amount of cars townig vans or trailers , or just loaded with tents or swags on the roof was amazing. I seen my fair share of L/R's and R/R's in the mix, more than i have ever seen up here before.

    I have only seen 1 L/R either broken down or on a tilt tray, and that was a defender , the model with the hump in the bonnet.
    I have personally bought back from several different towns or roadhouses 6 or 7 Toyota's mainly prado's plus a couple of hilux's , 1 pajero and a triton, plus a couple of holden something or anothers.

    My point is , all makes have problems , especially when travelling long distances and throw in towing a van/camper as well

    Bulletman

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