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  1. #1
    New Member 2020racer's Avatar
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    Edmond, OK

    Default Kubota tipped over-Engine locked up

    I tipped over my kubota 5740 on it's left side. I immmediately turned it off. When we got it back upright it would not start. It initially turned over and almost started. But the second time I tried to start it, it wouldn't turn over at all. It acts like the motor is locked up. Any Advice on what to do?

  2. #2
    Elite Member Ductape's Avatar
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    Feb 2006
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    4,852
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    Central New Hampshire
    Tractor
    Kubota B3030HSDC

    Default Re: Kubota tipped over-Engine locked up

    You've got oil in the cylinders. You can wait a long time for it to drip back into the crankcase, or pull the injectors and turn the motor over to clean the cylinders out. Oil doesn't compress, so starting it with oil in the cylinders could cause alot of harm.

  3. #3
    Super Star Member Diamondpilot's Avatar
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    Jan 2007
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    Daleville, IN
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    Jinma 254/284 Ford 861 Powermaster at work

    Default Re: Kubota tipped over-Engine locked up

    Make sure when you pull the injectors you have the fuel cut off before trying to start to prevent pumping fuel all over the place. After you get the oil out you will have to reprime the fuel system.

    Chris

  4. #4
    New Member 2020racer's Avatar
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    Edmond, OK

    Default Re: Kubota tipped over-Engine locked up

    If I wait 24 hours is that long enough? If not, how long should I wait?

  5. #5
    Veteran Member banjodunn's Avatar
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    Oz

    Default Re: Kubota tipped over-Engine locked up

    G'day if you want to be truly sure that the oil is gone pull the injectors there is no way of telling if 24 hr is long enoough time to wait or not. You can wait that long but i would want to turn the eng over by hand rather than by starter at the beginning that way you can feel what is going on. Best of luck with it


    Jon

  6. #6
    Gold Member
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    Jun 2009
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    Sumner county, TN

    Default Re: Kubota tipped over-Engine locked up

    Sounds like the engine may be hydrolocked. Pull the injectors, cut the fuel off, and turn it over until it's clear. Be sure not to stand in around the cylinders, it can make quite the mess.

    It sounds like you tried to start it after uprighting the machine, but without pulling the injectors. It's too late now, but be aware that can do a lot of damage to an engine. You'd be very surprised at how easy it is to bend the piston rods trying to start a hydrolocked engine.

  7. #7
    Elite Member ovrszd's Avatar
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    May 2006
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    4,741
    Location
    Missouri
    Tractor
    Kubota M9540, JD2210

    Default Re: Kubota tipped over-Engine locked up

    Yep, hydrolocked. I hardcore Jeep. I've saw several engines ruined by operators trying to start them after being on their lid. Don't try to start it again until you have vented the cylinders and pumped the oil out by turning it over with the starter while injectors are removed.
    Richard
    Kubota M9540, JD2210

  8. #8
    Veteran Member MJPetersen's Avatar
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    Feb 2007
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    1,255
    Location
    Warsaw, Poland
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    YM 1510-D

    Default Re: Kubota tipped over-Engine locked up

    kubotas do not have compression release levers? I do not know yanmars do and i would just pull the compression release for a few laps, sit for a couple of minutes do it again and then start it. MUCH MUCH easier than pulling injectors.

    I also have seen at least one engine ruined by trying to start it with oil on the top of pistons. When I got there and cleared the oil the damage was already done--it threw a rod in the next couple of days--right through the side of the block.

    You can do it another way if you do not have compression release. Take the valve cover off, turn it over by hand until it gets hard, with a block of wood push down each exhaust valve and try turning it further. You will learn which cylinder is the culprit. Keep turning it by hand until all is clear.

    One warning. If you had it running and then it locked up I am afraid that the damage may already be done. But that sounds like the oil was lying in the intake and was subsequently drawn into the engine. So it would be good to remove the intake to eliminate the source of additional oil.

    Good luck.

    Mike
    "In all your ways acknowledge Him and He will direct your paths." Solomon
    YM1510D, YM 1202 tiller, The following home made tools: Quick Hitch, KK copy dirt scoop, imitation Gannon rollover box blade, Forks on 3pt, a Rear Blade with gauge wheels and a 1.5 yd dump trailer.

  9. #9
    Gold Member TTTTTT's Avatar
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    Mar 2008
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    Bowmanville, Ontario
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    Dong Feng 354 (Oct 2008)

    Default Re: Kubota tipped over-Engine locked up

    Quote Originally Posted by 2020racer View Post
    I tipped over my kubota 5740 on it's left side. I immmediately turned it off. When we got it back upright it would not start. It initially turned over and almost started. But the second time I tried to start it, it wouldn't turn over at all. It acts like the motor is locked up. Any Advice on what to do?

    You should be ok. With help from a dealer I was up and running soon.
    Timely as this past spring I did the same thing and it is fully documented. What other have said is correct.

    The Flip
    http://www.tractorbynet.com/forums/s...-big-flip.html

    Starting After The Flip
    http://www.tractorbynet.com/forums/c...-big-flip.html

    Good Luck!

    Dave
    DF-354 (Oct.2008), Town Sunny 404 Loader,
    Town Sunny 3pt BH -6',
    3pt Log Splitter - 26",
    3pt 12" PHD
    8' Snow Plow Blade adapted to FEL,
    3 pt 7' Rear Blade,
    FEL / 3pt Forks,
    Hydraulic Toplink.
    3pt Hydraulic Crane

  10. #10
    Super Member
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    Apr 2000
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    7,968
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    Shingle Springs California
    Tractor
    New Holland TC40D

    Default Re: Kubota tipped over-Engine locked up

    Some do. My older '85 B8200 does.

    Quote Originally Posted by MJPetersen View Post
    kubotas do not have compression release levers? I do not know yanmars do and i would just pull the compression release for a few laps, sit for a couple of minutes do it again and then start it. MUCH MUCH easier than pulling injectors.
    RobertN in Shingle Springs Calif

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