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  1. #1
    Bronze Member
    Join Date
    Nov 2012
    Posts
    82
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default YM1700 heavy blue grey smoke at crank up steam from air cleaner

    The title says it all. Been using my tractor a good bit the last few weeks. Parked it for a week, cranked it today, got heavy smoke for 5-10mins. Clears up after running. Turn it off, crank it up, heavy smoke. Opened the air cleaner and had steam coming out. Could I be so lucky as to need a head gasket, any thoughts?

  2. #2
    Bronze Member
    Join Date
    Nov 2012
    Posts
    82
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    Guess its odd to reply to my own post but just wanted to add some information. Oil level is good, no problem. Water/ Coolant level was low. Appears to definitely be steam from coolant out of air filter. I mean the coolant has to be going some place.

  3. #3
    Super Member California's Avatar
    Join Date
    Jan 2004
    Posts
    5,685
    Location
    Sonoma County
    Tractor
    Yanmar YM240, YM186D, and another YM186D

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    Sounds like the head gasket to me.

    Be sure to use the compression release EVERY time you begin to crank it to flush water out of the cylinders until you get this resolved! Water is uncompressible and will bend/shatter something.

  4. #4
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,707
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    I agree with California.

  5. #5
    Platinum Member
    Join Date
    Jan 2012
    Posts
    514
    Tractor
    YM2000

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    Keep coolant in it and try not to run it hot. Hopefully it's just slightly warped. If it was mine there already have been a call to Hoye. May be a simple easy fix

  6. #6
    Elite Member Car Doc's Avatar
    Join Date
    Mar 2009
    Posts
    3,246
    Location
    Kansas
    Tractor
    YM3810D Yanmar

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    Yup I agree with California also use the comp release when cranking or else it could be very expensive overhaul instead of a minor HG replacement. good luck
    Yanmar YM3810D, LT duty 3pt hoe, 6' KK2 tiller, 6' KK box blade, 6 1/2' KK disc, 5' Howse bush hog, 5' Howse back blade, 9" Yellow PHD, 3 Husky chain saws 346XP NE, 359, 372XP. 07 HD Heritage Softail, Crack injectors, check compression, take 2 beers and call me. "Hey you didn't build that."

  7. #7
    Bronze Member
    Join Date
    Nov 2012
    Posts
    82
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    Started my tractor this afternoon, exhaust coming out of radiator. Will pull the head this weekend and send it to the shop, checked for cracks, and resurfaced. Seeing how far into the motor I will be does anyone have any suggestions as to what else I should replace. I was thinking definitely new rings.

  8. #8
    Gold Member
    Join Date
    Mar 2005
    Posts
    441
    Location
    Mobile, AL
    Tractor
    Yanmar YM1700

    Default

    I've been down the same road with my YM1700. Unfortunately for me I discovered the real problem too late. To make a long story short I cooked my engine and had to just about go a complete rebuild. I pretty much replaced everything exceot the main bearings. in addition to the rebuild I bought a water pump kit and installed it too. I never did trust the thermo-syphon system here in the Deep South during the summer. U can read some if my old posts about my experiences.

    Head gasket may be all u need. I would have the head pressure tested and magnafluxed at least.
    Yanmar YM1700, rotary cutter, box blade, disc
    __/)

  9. #9
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,707
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    Has your tractor given any indication of oil use or blowby? If not and running strong before the head gasket failure my two cents would be to change the head gasket and keep trucking.

  10. #10
    Bronze Member
    Join Date
    Nov 2012
    Posts
    82
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default Re: YM1700 heavy blue grey smoke at crank up steam from air cleaner

    I would characterize the oil use as minimal, only slight. As far as blowby is concerned its a little heavy, but not as heavy as what I saw on the youtube video I watched.

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