OvalAutos
Member Since: 28 Dec 2018
Location: Cradley Heath
Posts: 382
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Not much call for oil burners in the states, so I don't see why they would get a *special* crank. Joe
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 11th Jan 2020 6:31 pm |
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3disco
Member Since: 23 Sep 2010
Location: devon chardstock
Posts: 504
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I think it may have been a Ford territory could have even be for Australia?
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| 11th Jan 2020 6:35 pm |
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lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
 
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The yanks have some truly awful v8 diesels in their light duty trucks and pick ups, cannot remember their name/make but you name it and it went wrong all the time, made the 2.7/3.0 seem magical in comparison.
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| 11th Jan 2020 6:46 pm |
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3disco
Member Since: 23 Sep 2010
Location: devon chardstock
Posts: 504
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Just found it was for the Ford F-150 in USA and talks about a forged crankshaft are the UK versions forged?
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| 11th Jan 2020 6:50 pm |
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OvalAutos
Member Since: 28 Dec 2018
Location: Cradley Heath
Posts: 382
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Just a little footnote on life expectancy....
Most vehicle manufactures go with 150k/10yrs. They could shorten it by a year or two or lengthen it, but each way would have ramifications. Too short and they would get a reputation as being crap - too long and they would lose money. So it's an average, not a given.
A good JLR example of this is with the auto gearbox. They say the 'box is sealed for life and does not require a fluid change. JLR life is 150k miles, but ZF (the manufacturer of the 'box says to change the fluid every 60k). This is because JLR know the average 'box will last that mileage before failure, but ZF know that the 'box would benefit from a fluid change and we all know that a MegaFlush will do wonders 
Automotive Averages
In general, however, people don't really keep their cars forever. Research by R.L. Polk says that the average age of a modern vehicle is 11.4 years, while the average length of time drivers keep a new vehicle is 71.4 months -- around 6 years.
At the end of the day most cars last past their expected life, with a little TLC and those that don't have probably had a hard life - on average Joe
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| 11th Jan 2020 7:19 pm |
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OvalAutos
Member Since: 28 Dec 2018
Location: Cradley Heath
Posts: 382
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3disco wrote:Just found it was for the Ford F-150 in USA and talks about a forged crankshaft are the UK versions forged?
Cast I'm afraid  Joe
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| 11th Jan 2020 7:23 pm |
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3disco
Member Since: 23 Sep 2010
Location: devon chardstock
Posts: 504
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So possibly the way to go for a longer life?
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| 11th Jan 2020 8:16 pm |
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RogB
Member Since: 15 Jun 2018
Location: Mansfield
Posts: 1650
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40 failures..... how many TDV6/SDV6 in D3/D4/RRS have been sold in UK in total i wonder 
to be fair i don't think 40 is a bad figure, just unlucky if your one of those that suffers crank failure.
but thanks to this thread (and this forum in general) my mind is put a lot more at ease and allows to me to enjoy my D4 even more... i really cant think of anything i could replace it with  2011 D4 XS 305 MY12 - gone but not forgotten
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| 13th Jan 2020 9:21 am |
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M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
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OvalAutos wrote:3disco wrote:Just found it was for the Ford F-150 in USA and talks about a forged crankshaft are the UK versions forged?
Cast I'm afraid
And there was me thinking every crank shaft was forged! 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)
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| 13th Jan 2020 9:33 am |
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darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
  
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The trend for new vehicles is for cast Cranks
Life expectancy these days is a lot lower than in the past as Vehicles are being designed more as a disposable item sold on PCP at a cost therefore all engineering has to be tailored to suit this cost
Cast = Cheaper by a significant percentage - with modern manufacturing it can also mean lighter which has a benefit for the emissions etc Must stop buying shiny toys....
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| 13th Jan 2020 11:37 am |
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darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
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I was lucky enough to have a factory tour at a forging plant in India when I was there last year
https://www.bharatforge.com/facilities/forging
They were producing V16 Locomotive engine cranks on the line I visited to sound was incredible!
Ironically on machinery that had been bought from Sheffield during the recession, shipped over to India and installed by the guidance of the original commissioning engineers - most of whom were in their 70s and 80s Must stop buying shiny toys....
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| 13th Jan 2020 11:46 am |
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darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
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3disco wrote:Just found it was for the Ford F-150 in USA and talks about a forged crankshaft are the UK versions forged?
Would be interesting to see what the process would be to fit one of these new Ford engines into a D3 would be... or if the crank on its own could be utilised as a swap of the original one made from cottage cheese before the failure causes significant damage! Must stop buying shiny toys....
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| 13th Jan 2020 11:51 am |
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M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
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There’s a Canadian chap on the forum who has fitted a Ford Ranger engine to his LR3, could it be the same engine as the F150?
Regarding cast cranks, I did a google search and the info was very interesting. They say the cast steel crank is almost as strong as a forged steel crank. 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)
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| 13th Jan 2020 1:20 pm |
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3disco
Member Since: 23 Sep 2010
Location: devon chardstock
Posts: 504
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It could just be the difference though!
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| 13th Jan 2020 5:01 pm |
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darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
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I think it was mainly due to the reputation of the Lion engine and its associated crank/bearing issues that they had to do something before F150 was offered with it.
This was from Car and Driver (https://www.caranddriver.com/news/a14773081/2018-ford-f-150-diesel-full-details-news/)
Quote:To ensure that the engine has the grit to stand up to the abuse of domestic-pickup-truck owners, Ford began the overhaul at the bottom by fitting the 3.0-liter V-6 with a forged crankshaft, like the one found in the 2.7-liter EcoBoost gasoline engine, complemented by purpose-designed main and rod bearings. A variable-geometry turbocharger takes care of boost, and common-rail direct injection running up to 29,000 psi handles the fuel supply, while dual fuel filters keep the supply clean. Aluminum cylinder heads sit atop a compacted-graphite iron block, and a two-stage oil pump keeps the 6.5-quart oil supply circulating with an eye toward efficiency by reducing parasitic loss. Ford is calling for 150,000-mile service intervals on the timing belt, and the 5.4-gallon exhaust aftertreatment fluid supply should be good for 10,000 miles per fill. Although official numbers haven’t been released, Ford said the turbo-diesel 3.0-liter weighs approximately 620 pounds, which is about 150 pounds heavier than the aluminum-block, twin-turbo 3.5-liter EcoBoost. It will be produced in Ford’s Dagenham Engine Plant in the U.K. alongside the Land Rover engine.
Must stop buying shiny toys....
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| 13th Jan 2020 6:25 pm |
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