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Another blowby question. 850 1994

posted by  someone claiming to be Steven M on  Tue Jun 28 04:18 CST 2011 [RELATED]

hi all,.

I have searched the forum and don't know what to do. I have an 850 2.5L non turbo, 177000km. Now it has blowby and if you hold the engine at 5500rpm, oil actually squirts out of the hose that comes from the black box underneath the intake manifold. So i'm assuming it is not blocked. Now is the box supposed to keep the oil in? Also, it leaks alot from the front seal of the crankshaft pulley but only after 5mins from startup. Strange! Can anyone point me in the right direction. Thanks

Steve








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    Another blowby question. 850 1994

    posted by  KlausC on  Tue Jun 28 11:11 CST 2011
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    Your PCV is totally clogged causing increased crankcase pressure, which is then blowing the seals out.

    No, oil should NEVER come out of the hose. That is a vacuum line.

    Have you replaced the oil separator box previously? Or the hoses?

    Klaus
    --
    Always willing to listen, just not able to take direction.








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      Another blowby question. 850 1994

      posted by  someone claiming to be Steven M on  Wed Jun 29 16:44 CST 2011 [RELATED]

      No I have not replaced anything, will I need to remove the intake manifold to get to the box?







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        Another blowby question. 850 1994

        posted by  KlausC on  Wed Jun 29 17:08 CST 2011
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Fri Oct 24 10:15 CST 2014
        [RELATED]

        Yes, if you replace the separator box, the intake manifold must be liftted up. You can keep the injectors in place to save time, just by lifting the manifold and letting it rest on the top of the engine.

        But, first: Check the PCV valve. If there is a screen in there, throw it away. Then checck the lines going to the PCV for blockage, if blocked use a wire to try to ream them out a little.

        The oil level is not above the full mark, correct?

        Klaus
        --
        Always willing to listen, just not able to take direction.







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