Cummins vs Yanmar

Discussion in 'Diesel Engines' started by vjb, Jun 4, 2006.

  1. FAST FRED
    Joined: Oct 2002
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    Location: Conn in summers , Ortona FL in winter , with big d

    FAST FRED Senior Member

    "The Yanmar 6LP is a Toyota 1HD engine from the Landcruiser."

    If true, that is GREAT news , Yanmar is almost as insane as Volvo in pricing parts , somthing an auto dealer could never get away with.

    Our preference for 100-200hp or so for fish boats is the International DT 466.

    Same engine has been made for almost 3 decades in power levels from 125 to 300hp.

    Almost free at Truck junk yards as class 5 trucks are seldom if ever rebuilt after an accident , so a "new" truck with engine is really cheap.Std SAE bellhousing so fitting a rebuilt marine tranny is a bolt on.

    We chose Kubota down for the small stuff , lawn tractor dealers cant get the INSANE prices the marine folks seem to think is their due.

    FAST FRED
     
  2. zorton01
    Joined: Jun 2006
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    Location: Spain

    zorton01 Junior Member

    In my opinion,

    I heard before that some people prefered Yanmar because it was more modern than Cummins. But Cummins offers the option of electronic control (shift and throttle), + other integrated systems like automathic engine syncro, and more data engine, as instant consumption, vessel range, depth, rudder position, temp, etc. This is not the case of Yanmar, that only offers the traditional engines with analog instrumentation, and the posibbility of installing a semielectric control for shift and throttle (electric control action, but mechanical shift and throttle action at gear and engine). It´s not an electronic engine like Volvo or Cummins.
    You haven´t consider the Volvo or Cummins option. The D9 is not in the range we are talking about, you should think on a D6-370. Firts of all, it delivers 11 Hp more than Yanmar (at the same fuel temp). For me, the 6lya is not on the same level competition as QSB or D6. There are big differences between this two engines and Yanmar. QSB an D6 delivers more power, better torque at low revs. Yanmar delivers more smoke, and i´m not able to appreciate noise differences between them . D6 is common-rail inyected (less comsumption and smooth running). D6 is based on the EVC (CAN-bus tech). Wire installation is easier (one easy plug wire going from controls and panel to the engine). Cummins and Volvo can be installed multistation, not Yanmar.
    The decision for me would depend on the quality of the engine service aftersale, not forgetting the performances. I would chice between Cummins or Volvo depending of the aftersale service in my port

    QSB 5,9 6LYA D6-370
    CILINDERS 6 6 6
    DISPLACEMENT 5,9 5,1 5,5
    RPM 3000 3300 3500
    CRANKSHAFT POWER 380 359 370
    WEIGHT 612 610 KG 677kG
    FUEL SYSTEM DI DI COMMON-RAIL
    CONSUMPTION *76l/h * 81l/h * 73l/h

    *FUEL TEMP 40ºC
     
  3. StianM
    Joined: May 2006
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    Location: Norway

    StianM Senior Member

    Moust valves have lifters that will brake so the other components will not suffer. Aluminium has the advantage that it's easy to weld compared to cast iron so I suspect that steyr bring damaged monoblocks in for welding and machining and than ready to go.

    All new european car's and some american has b elt drive, but how often do you hear about it snap?
    The diference betwen chain/gear drive is that a belt has to be replaced once in a while. The reabilety is the same after my exsperience.
     
  4. Frosty

    Frosty Previous Member

    What ,--- the Yanmar 6LP is a Toyota is news? I have posted this before ,-- Yes gentlemen it is Toyota. I have had this confirmed from the 'Yanmar help' forum based in the UK. Both the 250HP engine and the 4 valve 300HP configeration is Toyota. It may have escaped your attention but this engine the 1hd is a very powerfull diesel engine and obviously impressed Yanmar too.
     
  5. Ari
    Joined: Jan 2006
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    Location: Port Dickson, Malaysia

    Ari Patience s/o Genius

    Thank you again..now I know how to cut my cost..Base on my experience with Yanmar engine..I.am really impressed..but Yanmar price is a bit stiff..used Toyota Land cruiser or trucks engine is easier to find(imported from Japan).
     
  6. Frosty

    Frosty Previous Member

    Ari,-- The Yanmar 6Lp is a converted truck motor but thats a very cruel descrption of it. The base engine is the Toyota but I hasten to add that yanmar put a lot of other bits on as well making a very capable marine engine.
    But yes parts would be available at half the price at the Toyota dealer. I will certainly not be ashamed of myself for doing so. Incidentaly I had an issue with oil pressure when I first bought these engines, they had hardly 20 hours on them. It was more of a concern than in Issue really . However Yanmar Australia who supplied the engines said that I must use genuine Yanmar parts or the warranty may not be honoured. They suggested that my concern over the late oil pressure could be caused by after market oil filters and insited that i use only Yanmar filters. The thing was that the engines came deliverd in the crate with toyota filters on them. I informed them of this,-- it went very quite for a while and then they replied saying that ,--well errm they are Toyota engines and may well have had the Toyota filters on.
    Stamped on the back of the front cover by the raw water pump is very clearly stamped for the world to see ----TOYOTA

    The Yanmar dealer for Malaysia is a compny called CLLS

    Ari --are you based at Admiral Marina ?
     
  7. Ari
    Joined: Jan 2006
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    Location: Port Dickson, Malaysia

    Ari Patience s/o Genius

    Admiral Marina is about 10 minutes leisurely drive from my house.My family used to spend our evenings there..lotsa boats..very comfortable place.. get to know some of the sailors that sail and circumnavigate..had you been here before Jack ?
     
  8. Frosty

    Frosty Previous Member

    Yes I have, I usually stop over at Port Dickson and then a leasurely sail round the corner to Klang. Is the immigration office still behind the Indian curry house?
    I always sail close to the light house "cape Ricarda" or something I forget,-- But what a fabulous light house that is.
     
  9. Ari
    Joined: Jan 2006
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    Location: Port Dickson, Malaysia

    Ari Patience s/o Genius

    My dear friend if you know where it is behind that curry house ..than you really know the place..! That light house called Cape Rachado..probably named after some Portuegese big shot who set up the light house there.The current in that region is very swift especially when it is change of tide - high to low or low to high..grave to a few Junk and Galleon..and those treasure hunters..bottom fishing there is fantastic..especially when one used handline..350lb strenght..the biggest congegation of brain coral..very steep rock wall..the channel is about 250 feet deep at some point and only inches..when out of it..I had stranded on those rocks one night with my brand new(5 hours) 24 footer fast fishing boat equip with 40 horses Mercury..lucky the fibreglass hull is strong enough..limp back home on the 6hp spare Suzuki..!Next trip around..feel free to inform me if you plan to stop by..
     
  10. Vega
    Joined: Apr 2005
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    Location: Portugal

    Vega Senior Member

    You are right...and you are wrong.

    You are right because it is a Portuguese name and you are wrong because it is not named "after some Portuguese big shot". Portuguese were sailors and there are a lot of places around the world named by us, mainly places that are easily identified at that had worked as reference points. Many times the name is a sort of description of the place (for useful proposes) and that is the case. Rachado means : " almost split in two, but not completely", like the ***, Ari:p
     
  11. Frosty

    Frosty Previous Member

    Vega, You are right and you are wrong too!!

    That fabulous light house that your ancestors were resonsable for is an absalutely beautifull majestic building on the top of a cliff. Now cliffs are not common in this part,-- why just 40 miles up further north you have mangrove swamps and 1 fathom bank. Any way this cliff and the surounding area does not have any thing as far as I can see that could be construed as splitting in two. Unless its because the light house is half way up the straights ( a wild guess)
    Now I am not one to be a spelling guru here but an *** Sir is the animal that jesus rides about on. The arse is the big thing in the back of a fat ladies pants. But I think I know what you mean.
     
  12. Vega
    Joined: Apr 2005
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    Location: Portugal

    Vega Senior Member

    Hey jack I don't speack English very well, but take a look here:

    *** :slang for "backside," first attested 1860 in nautical slang:p

    http://www.etymonline.com/index.php?term=***

    They certainly did not make the lighthouse, they just give the name to the cape.

    In old Portuguese " racha de Vento" means strong gusty wind. So Cap Rachado can also mean Gusty cape. It makes more sense like that?
     
  13. Frosty

    Frosty Previous Member

    Any one who participates in a forum in a language that is not there mother tounge has my utmost respect. Jees I couldnt do that ,--not even to save my life.
    Looks like I am right and wrong too then!! But I am not surprised-- the wife says I am wrong all the time,--Sigh
     
  14. Ari
    Joined: Jan 2006
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    Location: Port Dickson, Malaysia

    Ari Patience s/o Genius

    What ever it is..no problem..wether it is meant to be cape de Rachardo or racha de vento..both can be right..! it do really split the shore and create two big half moon bay with the thin cape protruding out about 3 kilometres from the shore..back side shape..talk about the wind..this is the "Sumatra" strong area..those who sail the straits of Malacca..understand this very well..At the times Portuguese conquer Malacca, the cape area which is Linggi is part of Malacca territory. Until today the cape still belongs to Melaka but the shore is Linggi which is part of Negeri Sembilan..my state.:)
     

  15. Ari
    Joined: Jan 2006
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    Location: Port Dickson, Malaysia

    Ari Patience s/o Genius

    Don't worry too much Jack the wife said that on purpose..so you will always refer everything to her..since she is the 'the right one'..! how do I know..? more or less same experience Jack..!:D
     
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