Yanmar - How long should it take for oil pressure to come up from a cold start?

Discussion in 'Diesel Engines' started by Frosty, Jul 26, 2009.

  1. Frosty

    Frosty Previous Member

    Yanmar are crap.

    Yeah you heard me,--sue me.

    Yanmar you are crap. 4 years I have had these 6LPs and I can not get a reply to this question. How long should it take for oil pressure to come up from a cold start?

    They also rattle like an old tin can of bolts when I turn them off and have done since they were new.

    I want to sell the boat but the engines will get a bad survey like this and they are nearly new.

    I once heard there was a Yanmar agent in the Marina, I ran and found him , I dragged him over and showed him everything, He said the engine mounts were wrong, he went away. I then got an e mail saying no they were correct,---nothing else ---nothing.

    A simple question, but they wont talk about it because mine take 7-10 seconds,-- tooooooo long!!!!

    Australia told me to get on with my life. Yanmar Europe wont answer thier e mails any more,-- the last which was "you will here from Yanmar Malaysia.

    That was 17July.

    Singapore is the best, they sent me a new turbo that sucked in the air filter rivets!! Yanmar Australia said they are too old for turbo warranty?? 170 hours?

    Unless I live in Sing I will never ever buy another Yanmar. They are just Toyota engines anyway.

    Come on Yanmar communicate with me. you had better because I will get louder, 4 years is enough.

    ANYONE???????????? Come on sue me?????
  2. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    I cannot guarantee a reply, but since they are down the road from me, i'll ask.
  3. marshmat
    Joined: Apr 2005
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    marshmat Senior Member

    Umm... you have a problem with oil pressure on start-up, and they sent you a new turbocharger?
  4. Fanie
    Joined: Oct 2007
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    Location: Colonial "Sick Africa"

    Fanie Fanie

    Selling the boat ? Are you turning into a landlubber or have you another boat in mind ?

    Put the original popeye avatar back. That would get the yanmars sit up ;)

    Why is it the moment a product begins to get a good name they go and bugger it up.
  5. forkliftking
    Joined: Oct 2005
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    Location: usa

    forkliftking Junior Member

    I have a 2004 Komatsu small front loader with a 4 cylinder junk Yanmar engine. We were told that the engine is not made any more and no parts are available. A wholesale dealer in florida sold us a new, different model Yanmar that we adaped to fit. $3850.00. Had to buy the fuel system and other accy. to match. Less then 5 year old engine and you can't get parts. I would not buy ANYTHING powered by Yanmar. Just my 2 cents worth.
  6. Jimbo1490
    Joined: Jun 2005
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    Location: Orlando, FL

    Jimbo1490 Senior Member

    I bet owners of Isuzu and Kubota diesels would beg to differ with you. GM won the 'diesel war' in light trucks by using an Isuzu engine. The Cummins and IH engines used in the Dodge and Ford light trucks respectively (or GM's own diesel engines, for that matter) just don't stack up to the Duramax (Isuzu) engines. I think of Yanmar as a maker of cheap, throwaway air cooled one-lunger diesel used on 'arrow boards' and light towers. Most everything else they sell is re-badges from some other maker like Toyota.

  7. peter radclyffe
    Joined: Mar 2009
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    peter radclyffe Senior Member

    what do you guys think of the 40hp new volvo
  8. hartley
    Joined: Feb 2006
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    hartley Junior Member

    yanmar are crap

    Bad news frosty,I am no yanmar expert ,detroit,perkins are my go ,i suggest you look up ''boat diesel.com, lots of info there on yanmar I used to be member some years ago ,you pay 25 bucks i think and you get the archives I recall lots of trouble with cylinder heads ,valve gear etc ,some talk of class action .it all gets down to the same old story,trying to extract too much hp from base engine design .....cheers hartlley.
  9. mark775

    mark775 Guest

    They do now. Cat is the dumb one with ACERT. Contact Tony Athens, a moderator of boatdiesel, about Yanmars. He will get you straightened out. Those little Yanmar buggers are doing great service on charter boats in Alaska.
  10. Jimbo1490
    Joined: Jun 2005
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    Jimbo1490 Senior Member

    So never even heard of the venerable NPR and NQR series medium (18, 000 lb) truck engines? Isuzu is the best selling medium truck in the world. There's a reason for this and it's the engine.

    And no offense to the fans of Cummins, but they have made a couple of clunkers, too, like the 555's.

  11. Frosty

    Frosty Previous Member

    Disappointed,!!! I opened up this morning hoping to find Yanmar contacting me. But not shocked.

    No Marshmat they did not just send a 3000 dollar turbo because of the oil late alarms, the turbo was damaged by its own filter rivets that fell out. I did adequately explain,-- thought.

    I have to what? ask Boat deiesel and send them money to ask about a Yanmar, why don't Yanmar know.

    They take a Toyota engine then paint it silver ,--very badly,-- then charge you 54,000 australan dollars.

    They told me that my problem is the filter and I should not use after market filters, I use Toyota 30915 30002, they said ah thats your problem , But I said thats what was in the engines when you delivered them.

    Yanmar filters are 48 pounds a pair they paint Toyota filters and sell them as Yanmar. am I lying???

    It is pathetic that one has to do this to get a company to contact.

    The book tells you to change the mixing elbow every year, they are 1000 pounds.

    When the engines are running they are good with good HP but after market assistance is non existence. Any one can be a Yanmar dealer and if you get a difficult question just ignore it.

    I think Yanmar Autralia has mixed the wrong filter blocks with my engines with the outdrive models they have 2 different type cooler take offs.

    Yanmar Europe sent me a picture of a filter block asking if mine was like this ,--i said no , They said oh we dont know this engine. Thats it? never E mailed again.

    Australia told me not to worry as both engines can not have the same problem and to get on with my life.

    Yanmar 6LP are crap just don't buy them
  12. Frosty

    Frosty Previous Member

    I may not have explained the rattle correctly. The rattle is when the engines are stopped,--ie the button is pressed to stop. As the crank bounces between compressions finding a place to stop it rattles.

    I changed a drive plate on one of them but both are identical.

    Surely this cant be normal. It is very loud, and is unacceptable.

    It is not the exhaust.
  13. Frosty

    Frosty Previous Member

    Both engines Identical noise, have done since brand new at zero hours. Thats why Yanmar Australia dismiss it as a problem because you cant get the same prob on both engines in the same boat, well that what they say.

    If it had have been one engine I would have gone for the damper. There is no additional take offs, engines are as delivered.
  14. globaldude
    Joined: Jan 2005
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    Location: Whangarei New Zealand

    globaldude court jester

    I run a small 40hp 4cyl Yanmar in my fishing boat, it runs real sweet uses very little fuel But !
    Sounds like you have identified the filters are too small - or at least the wrong ones. the rattle - no Idea .
    I'd be real pissed if I was you too mate !, the fact that they won't answer says they know about it , but don't want to admit liability -- in my opinion.
    Good on you for rarcking them up it's not good press ! and will no doubt put some off .


    Did you like the little Y ?? :p

  15. Frosty

    Frosty Previous Member

    No they stop immediately but rattle like the exhaust was touching the chassis on a car. Its not an engine malfunction just a rattle and loud.

    Its like (ive thought hard about this) a 10mm spanner in an empty gallon can and someone shakes it when the engine stops. Not acceptable is it?

    Been like that since new.

    Temperatures are perfect, oil pressure at idle is 2.5MPA x 10 not even in the red.

    Could be gearboxes/drive plate, but I changed a drive plate but no difference. At first I though and was convinced the drive plates were loose.

    Could be wrong drive plates,!!! but Sing sent me a new one for that engine and box and to my utmost surprise they sent the identical part.

    Yanmars are Crap take yer money and run. unless you live in Sing I suppose
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