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Thread: Acceptable Blow By?

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    Basic Member Gearhead442's Avatar

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    Acceptable Blow By?

    I am posting a video of my newly acquired 1999 Dodge Ram 2500. There seems to be some blow-by coming out of the vent tube. Nothing comes out of the dipstick or the oil cap. New to these trucks, and I am concerned with this. Could anyone please tell me if this is acceptable or normal on these trucks? I understand the crankcase has got to vent but didn't think it would be seen this much. Engine has low miles (around 130k).

    https://www.youtube.com/watch?v=CHlmED0VAcU



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    16 Cummins's Avatar

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    Re: Acceptable Blow By?

    Looks normal to me.
    What is the outside temperature during this video?
    If it's cold, it's like blowing hot air out of your mouth.
    Just hot air coming out and not necessarily oil vapor.


  3. Top Of Page | #3
    Old & Grumpy! Polaraco's Avatar

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    Re: Acceptable Blow By?

    Quote Originally Posted by Gearhead442 View Post
    I am posting a video of my newly acquired 1999 Dodge Ram 2500. There seems to be some blow-by coming out of the vent tube. Nothing comes out of the dipstick or the oil cap. New to these trucks, and I am concerned with this. Could anyone please tell me if this is acceptable or normal on these trucks? I understand the crankcase has got to vent, but didn't think it would be seen this much. Engine has low miles (around 130k)
    Looks pretty normal. Is the end of the tube damp with oil? Or is it soaking wet with a bunch of drips

    That low mileage could be against it too with sticky rings.

    At the risk of sounding like an advertisement for these people. . . . I just know their stuff works and works well. Eventually, I hope to have Dave as a sponsoring vendor.

    Run a couple of cans of this through the fuel tank http://www.archoil.com/ar6000-fuel-treatments-2/ This stuff is great at decarbonizing the cylinders.

    Change your oil and add a bottle of this http://www.archoil.com/ar9000-friction-modifiers/

    You don't have too, but a lot of guys are using this http://www.archoil.com/ar6000-fuel-treatments/

    This is the solution they use on the Fords with the bad injectors. Us Cummins guys are blessed with better motors. But even they have their moment. Hopefully, it will free up those rings.

    An engine with low mileage can be as bad as one with super high mileage. In fact, the high mileage engine is less trouble. Take it form a guy that restores cars


    2003- 3500 RWD Automatic.
    S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95,
    50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC

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