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  1. #1
    New Member
    Join Date
    Mar 2014
    Posts
    3
    Location
    Harrah, Oklahoma
    Tractor
    John deere 4430, 4440 & International 1086

    Default 1086 water in oil

    I have a 1086 that was sitting for about 4-6 years but it had a recent overhaul (less than 100 hours). I ran it for probably 20+ hours. I replaced the valve cover gasket and put a new turbo on it and when I started it up after about 30 minutes oil/water mixture was coming out of the blow by tube. I have taken the pan off and pressurized the radiator and cannot find a leak there. So I'm assuming it is not a liner with a hole in it. Anyone know what it could be or what to check?

    Any info would be greatly appreciated! Thanks

  2. #2
    Platinum Member
    Join Date
    Nov 2007
    Posts
    658
    Location
    South Carolina

    Default Re: 1086 water in oil

    Oil cooler can be a issue.
    IHC 424 Diesel
    Ford 917 Flail Mower

  3. #3
    New Member
    Join Date
    Apr 2014
    Posts
    10
    Location
    pineville,la
    Tractor
    international 384

    Default Re: 1086 water in oil

    check the after cooler if it has one

  4. #4
    Super Member
    Join Date
    Apr 2000
    Posts
    6,432
    Location
    central New York
    Tractor
    all makes and models

    Default Re: 1086 water in oil

    There is no after cooler on a 1086. I hate to do this but if the base was off and nothing was leaking off the sleeves then it must be the head gasket or head. The oil cooler runs with more pressure on the oil then water so the oil would be transferring into the coolant.

  5. #5
    Platinum Member
    Join Date
    Nov 2007
    Posts
    658
    Location
    South Carolina

    Default Re: 1086 water in oil

    Quote Originally Posted by art View Post
    The oil cooler runs with more pressure on the oil then water so the oil would be transferring into the coolant.
    Very correct!
    IHC 424 Diesel
    Ford 917 Flail Mower

  6. #6
    Super Member
    Join Date
    Apr 2000
    Posts
    6,432
    Location
    central New York
    Tractor
    all makes and models

    Default Re: 1086 water in oil

    Further reading, it might not have had the blowby if you had drained off the oil pan before starting. What you might be seeing is the condensation from sitting that long that was accumulating in the base.
    On another thought! You have checked to see if the sleeves were leaking and if pressurizing the cooling system you stated nothing was leaking. That is good as we have sometimes seen what we call western rebuilds which is when you have cavitation you pull the cylinders and turn them 180 degree's!

  7. #7
    Gold Member
    Join Date
    May 2014
    Posts
    466
    Location
    Paarl South Africa

    Default Re: 1086 water in oil

    Waterplugs under the tappetcover ? Or the housing between waterpump and engineblock ?

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