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  1. #1
    Sawtooth763
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    Milky/Oil film in Intake

    On a 2004 MSX 110

    I have milky/oil film & small deposits on the inside of the intake manifold.

    Looking for help on what can be the casue of this.


  2. #2
    Kosh's Avatar
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    Hi Mark,

    Do you have the intake manifold off the craft? if not where are you seeing these deposits?

    Should be dry in there. Are you storing it with the seat ajar and the hull dry? condensation is a killer over time.

    Cheers

    Photos??

  3. #3
    Sawtooth763
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    Milky/Oil

    Click image for larger version. 

Name:	Intake_2.jpg 
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ID:	220466Click image for larger version. 

Name:	Oil Tank Test.jpg 
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ID:	220467

    This pic is the milky oil I'm seeing in the intake manifiold.

    Am also testing the oil tank and so far she's holding steady, will check it in the morning. One thing for sure, the baffle is loose in the bottom.

    Any ideas what is causing the milky oil.

    Thanks

  4. #4
    Sawtooth763
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    Milky Oil

    Hi Kosh,

    Do you have the intake manifold off the craft?
    The motor is out of the ski on a engine stand. Manifold is only held on with a few screws for now.

    where are you seeing these deposits?
    All over the inside of the manifiold. The tube from the turbo is clean, no oil.

    Should be dry in there.
    Agreed, this is driving me crazy on how it's getting in here. Also seeing oil on the tip of the sensor that is on the intake, see pic.

    Are you storing it with the seat ajar and the hull dry?
    Has been stored with seat on before my time, for a long time, but I am keeping seat off as much as possible now.

    Cheers


    Photos??Click image for larger version. 

Name:	Intake Manifold Sensor.jpg 
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ID:	220472

  5. #5
    Sawtooth763
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    Milky Oil

    Opp's

    While I was moving the engine in my garage I grabbed the bottom of the air intake and found a fair amount of oil film on the bottom of the air intake. This caused me to give another look at the turbo tubes, rubbed my finger inside it and found a slight film of oil. There is a fair amount of oil in the grove of the air intake, see pic. My guess is the oil is Click image for larger version. 

Name:	Air Intake.jpg 
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ID:	220477 from the oil separator, but still can't figure out how the water is getting into the oil.

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by MarkMikenis View Post
    ...testing the oil tank and so far she's holding steady, will check it in the morning...
    I love the test rig

  7. #7
    Kosh's Avatar
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    I see that ugly deposit, there is a depression in that part of the manifold where it has pooled. Given no oil in the other induction tracts my guess is that it is a build up of blow-by vapor from the oil reservoir tank.The cyclone is supposed to remove the oil but if it has been over filled it will not cope.

    The moisture could have come from a rollover? or condensation. With water in the hull (hard to get it all out) the seat on in the right conditions will cause condensation in all the wrong places

    You also have the inter cooler acting like an air conditioning condenser feeding moisture in (assuming high humidity here)

    If it were mine I would take move the breather to a catch tank (the ones I've seen just tie the hose up at the back) clean out the intake manifold and enjoy.

    IMO Another good mod is to put a proper air cleaner on it, I used a Yamaha sho mounted higher in the craft this also has the benefit of keeping the inlet a bit drier

    Hope this helps

  8. #8
    Sawtooth763
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    Quote Originally Posted by K447 View Post
    I love the test rig
    It fricken works, pretty cool ha

  9. #9
    Kosh's Avatar
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    Hi Mark, pictures of air cleaner mod and baffle plate in the oil reservoir

    I did have a cheap pod filter but the Yamaha one was cheaper when I needed to replace (lots of unloved genuine items removed)

    Cheers
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	MSX 150 Air Filter Mod 29.01.2010 004.jpg 
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ID:	220666  

  10. #10
    Sawtooth763
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    Air Cleaner

    Very Cool, great idea.

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