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Disco 3 engine died

Discussion in 'Land Rover Discovery' started by TheBoab, Aug 7, 2018.

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  1. TheBoab

    TheBoab New Member

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    Hey
    My disco3 engine died (cracked blocks) and I'm getting rid but I've no idea what to ask for it. It's in reasonable good nick (see pic). I live in the Hebridies so costly to deliver to the mainland but have a guy locally who is interested. He knows his stuff and will most likely put a new engine in it. I don't want to rip him off but also don't want to leave myself short. I bought it for £8000 2yrs ago and spent £3500 on repairs and general maintanece. Not that, that matters as I doubt it's worth 10% of that now. Any suggestions would be really helpful. Thanks in advance.
     

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  2. neilly

    neilly Well-Known Member

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    @gstuart , you want some spares?

    Cheers
     
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  3. gstuart

    gstuart D3 Grandad

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    Hi

    Sorry to hear of the bad news

    Do I know exactly what went plse

    Did u have the belts and the modified oil pump casing replaced as 2007 onwards there renowned for failing and taking the engine out

    Normally people break them and can recoup a far amount if money

    If u post over here https://www.disco3.co.uk/forum/, there’s plenty of advice etc and also place to get a price for it
     
  4. gstuart

    gstuart D3 Grandad

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    Being a 2007 sounds like the oil pump casing has failed , they done a modified one , I had all my belts and upgraded oil pump cover done as soon as I got mine

    Can sometimes get away with pair of second hand cyl heads if the pistons are ok
     
  5. Nodge68

    Nodge68 Well-Known Member

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    If the block has cracked, then it's had a crank failure Gary. ;)
    Sadly crank failure is becoming pretty common on the TDV6, even in the 3 Litre now.
     
  6. Nodge68

    Nodge68 Well-Known Member

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    A second hand engine will set the next owner back at least £3,500 plus shipping, plus fitting. Fitting is a 20 to 30 hrs job, depending on who does it and how it's done. So factoring those costs in, will give you an idea of what it's worth to someone prepared to do the work.
    ;)
     
  7. Iancorky

    Iancorky Well-Known Member

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    I'm sure if he knows his stuff as you say, he'll know whats its worth then
     
  8. lynall

    lynall Well-Known Member

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    When I first got my D3 about 3.5 yrs ago all the D4 owners were crowing on about how their D4 v6 were much better, then I noticed about 2.5 ish years ago the 3.0 started to fail the same way and whilst Im sure its not as common as the 2.7 yet its getting there.
     
  9. gstuart

    gstuart D3 Grandad

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    Hi

    Blimey , earliest I’ve read of the crank going was a 2009 , indeed seen the later 3 litre engines also snapping cranks

    Also seems JLR arnt interested either
     
  10. gstuart

    gstuart D3 Grandad

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    These are some of the failures Of the aftermath

    9DF74B34-DBB1-4395-9362-2E578ECE3FB7.jpeg 40951AF9-B20D-4BB9-BFD3-9DAC43E14260.jpeg 1F96E72B-1F8F-4598-84FA-4C10243BD170.png B95A251B-5F36-499C-A75D-0FA0B592D833.jpeg
     
  11. gstuart

    gstuart D3 Grandad

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    Think one guy on the D3 forum , his D4 engine failed at 30,000 miles, had a new engine fitted then that one also failed :eek:
     
  12. Nodge68

    Nodge68 Well-Known Member

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    It isn't an LR engine, so maybe LR can't get replacements from PSA at a sensible price? It's unfortunate that LR chose to use an engine that has questionable reliability. I've read that PAS have out sourced the manufacturer of some components to outside companies, with so so quality control. It looks like some of these components are crank shafts, and some are breaking where they clearly shouldn't. When Rover made engines "in house", crank failure was virtually unheard of.
     
    Last edited: Aug 8, 2018
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  13. johnlad

    johnlad Well-Known Member

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    I believe the crank snapping is the result of the bearing shells spinning and blocking an oil way, resulting in no lubrication to the crank causing it to fail
     
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  14. MJI

    MJI Well-Known Member

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    Good reason to not buy any LR product with the V6 Diesel at the moment.

    As to engines, look at cheap Jaguar S Types.
     
  15. lynall

    lynall Well-Known Member

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    Im not entirely convinced about that, if you think about it the only reason a shell should spin is if it picks up then it will spin and block the oilway.
    I know the 2.7/3.0 dont have location tangs but then neither does the TD5 and many other engines.
     
  16. Nodge68

    Nodge68 Well-Known Member

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    Looking at the huge amounts of information on this, a majority of the cranks I've seen broken like that one above, don't have any evidence of spun bearings. The crank has split right across a journal, which can only be due to fatigue, caused by a manufacturing error, or incorrect damping of torsional vibrations.
     
  17. freelance

    freelance Well-Known Member

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    I think they try and make the blocks too light, so they just don’t have enough metal where it’s needed, nothing to stop it flexing, which is a sure way to snap cranks
     
  18. Nodge68

    Nodge68 Well-Known Member

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    Agreed.
    The bearing tang is there to help alignment in assembly. The bearing is a "crush" fit in the block/rod. It's this "crush" that stops it rotating, not the tang. As you correctly said. Many engines don't have tangs on the bearings and those don't spin bearings on the block or rod.

    There has been a problem with the Ford rods have suffered from crush relaxation for some time. This makes the bigend rattle on the crank pin. These rattling big ends don't break cranks, they just get noisy.

    Sudden crank failure is a design error or manufacturing fault and isn't bearing related.
     
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