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Thread: Excessive white smoke from*crank*case*breather*tube

  1. #1
    Join Date
    Jun 2016
    Location
    United States
    Posts
    25

    Excessive white smoke from*crank*case*breather*tube

    G'day all. Several weeks ago I replaced the head gasket on the 110 county and ever since I have noticed excessive white smoke coming out from the*crank*case*breather*tube. Otherwise the county seems to run fine the truck still seems to run fine. In the past, there has been a little smoke coming out the hose from time to time but now while it is idling, it does it all the time, with it often swirling around the front of the county when idling. Ran a compressi9n check and everything seemed to check out. Did I increase the pressure somewhere when the gasket was replaced? I've seen with other vehicles where a leaky tube drawing from the vacuum can impact this (when the hvac or other also depends on the vacuum), but that shouldn't be the case here. Anyone have experience with this or input to share I would greatly appreciate it as every time I stop I am reminded and worried. Thank you in advance.
    Scratching my teenage itch now that I'm in my midlife crisis...
    '87 110 County 4BD1+T+LP (Godzilla)
    '88 110 Perentie Cargo 4BD1+T+LP (Thing1)
    '91 110 Perentie Cargo 4BD1+T+LP (Thing2)

  2. #2
    Join Date
    Jan 2017
    Location
    Geraldton WA
    Posts
    673
    Is it smoke or is it water vapour ?
    2004 D2 "S" V8 auto, ARB winch bar, Safari snorkel, Kings 1200lb winch, Titan rear drawers, UHF Radio, 9'' spotlights, 28'' lightbar 245/70/16 Yokohama AT's

  3. #3
    Join Date
    Jun 2016
    Location
    United States
    Posts
    25
    The smoke dissipates like water vapor but I do have some residue from oils underneath in the drive.
    Scratching my teenage itch now that I'm in my midlife crisis...
    '87 110 County 4BD1+T+LP (Godzilla)
    '88 110 Perentie Cargo 4BD1+T+LP (Thing1)
    '91 110 Perentie Cargo 4BD1+T+LP (Thing2)

  4. #4
    Join Date
    Jan 1970
    Location
    Central West NSW
    Posts
    19,574
    White from engines usually means steam, which suggests something you did when replacing the head gasket is resulting in a small amount of water leaking via somewhere pretty hot into the crankcase. Wrong head gasket? cracked head? Head gasket not sealing properly due to incorrect tensioning or dirt?

    Anyone got other suggestions?

    Why was the head gasket replaced?
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  5. #5
    Join Date
    Oct 2012
    Location
    FNQ
    Posts
    1,228
    White smoke from diesels can be either unburnt diesel or steam.Unburnt diesel smoke usualy from the exhaust but not always.Our Isuzu truck suddenly started pushing white smoke out the breather at 82000k turned out to be a very small hole in the piston (manafacturing fault) If your problem is steam I would think by now you would have a nice sludgy build up in top of valve cover

    AM

  6. #6
    Join Date
    Jun 2016
    Location
    United States
    Posts
    25
    Thank you all. Pressure test all good and we saw nothing indicating a piston or ring issue, but from the posts above I may need a closer look soon. Just drove 1000km+ on a trip with no noted issues and no dramatic changes in fluids. As for head gasket material, would one material or another, all common, cause an issue and if so, what?
    Scratching my teenage itch now that I'm in my midlife crisis...
    '87 110 County 4BD1+T+LP (Godzilla)
    '88 110 Perentie Cargo 4BD1+T+LP (Thing1)
    '91 110 Perentie Cargo 4BD1+T+LP (Thing2)

  7. #7
    Join Date
    Jun 2006
    Location
    Hay Point
    Posts
    3,539
    It has to be blowby I reckon. They are a breathy motor at the best of times and force a fair bit of oil smoke out the breather. Maybe by changing the head gasket you have now increased the compression slightly and a bit more is leaking past the rings and into the crankcase or else you have been nursing/idling it too much. What sort of condition are your injectors in? Keep an eye on the oil/water levels and give it some hard work and see if there is any improvement. Other alternative is to fit a provent and redirect the fumes from the breather into the intake between the air filter and manifold.
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

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