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Thread: HRLP !! Valve Cover Gasket, debris fall inside camshaft housing case

  1. #1
    Join Date
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    2009 BMW 328i E90 N52B30

    HELP !! Under Valve Cover -Debris fell inside camshaft housing case



    While replacing the valve cover Gasket, I decided to clean all the visible oil gunk (excessively huge quantity).

    In doing so, a plastic cap the size of half spraycan sprayer-valve fell towards the bottom of the camshaft housing (the top side of the cylinder head)... into a crevice under the “exhaust camshaft bearing ledge”. (attached pictures)

    The plastic piece is not visible, nor reachable, and no tool fits under there .... except a curled wire... I tried to fish it without success.

    I think that, if the plastic tip gets in the oil flow, it will clog an oil passage (hopefully will make it to the oil filter)
    Worst, it could get trap in any of the cams, or the valve springs, or the Valvetronic excentric shaft, or the steel chain, or in the oil pump, or under a sensor...HAVOC !!!!

    I am thinking in vacuum suction with a Shop-Vac and a mini nozzle, a 1/8” diameter nozzle will not fit into the crevice, but Could stuck-suck the Debris (and some onzes of oil gunk with it)

    Or......It it would be necessary to remove the camshaft OMG !! ....Special Tools; and I gave not such skills.

    In the pictures I placed colored arrows:
    -Black is the “exhaust camshaft bearing ledge” ( the camshaft is inside).
    -Red seems to be a bar paralel to the shafts cam.
    - Yellow is the crevice where the plastic piece fell. Is just on the edge of the bolt of the Cilinder head.

    If somebody has a drawing sketch (front or rear view) of the cilinder head (also called the bottom of the camshaft case); I could better understand the cavity shape to try to fish it with tha vacuum nozzle.


    09C5687A-C527-4A4F-80DA-341971979333.jpeg39A25308-6CF1-436B-865D-BD803417EB35.jpeg99ED6B13-7959-4964-A1D9-F923FA68008F.jpeg9702036E-EDF5-474A-8366-EB0492CCB4B8.jpeg



    https://youtu.be/UXVN-sKC9O8
    https://youtu.be/ShZSY7JnG54
    Last edited by Rlequerica; 01-14-2018 at 04:22 AM.
    Rod Lequerica. - Miami FL
    2009 BMW 328i E90 LCI Sedan Type PH77
    Engine: 6cyl 3lt N52B30A - Auto Trans: GM GA6L45R
    VIN WBAPH775X9NM Plus 5 last serial numbers
    EL_LEQUE_DELAE@YAHOO.COM
    +1 (786) 239 1329)

  2. #2
    Join Date
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    2009 BMW 328i E90 N52B30
    By the way ay how big is my letters font in your browser now?
    I found this picture on the internet of a Cylinder Head, disassembled without the exhaust camshaft bearing ledge, and found that there is no paralel bar in the bottom, it is a part of the casting Signaled with Red Arrow.

    The yellow arrow indicates the crevice, where the plastic piece fell through.
    The Black arrow shows like an under passage, in the opposite side of the crevice.

    It it seems that the part signaled in red is a bridge..... but I am afraid that may be the oil flow passages....if yes.... does it connect with the crankcase ? down under ?
    i hope not.
    And will the oil flow upwards or downward es I the cycle ?

    OMG. ABE740B5-A076-40CE-9183-7FD88D7DAD01.jpeg
    Rod Lequerica. - Miami FL
    2009 BMW 328i E90 LCI Sedan Type PH77
    Engine: 6cyl 3lt N52B30A - Auto Trans: GM GA6L45R
    VIN WBAPH775X9NM Plus 5 last serial numbers
    EL_LEQUE_DELAE@YAHOO.COM
    +1 (786) 239 1329)

  3. #3
    Join Date
    Oct 2017
    Location
    Florida
    Posts
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    My Cars
    2011 BMW 328i
    I have hear horror stories about this from my mechanics. That people have torn apart motors only to find it is in an area where more broken stuff has been living for a long while. technically it wont get to the oil pump if it is to large, if it isn't it will be crushed and oil filter will handle the pieces just as it would for a piece of the gasket. get a new oil filter and change it soon. look for the pieces when you change the filter . shouldn't be a problem
    Last edited by jlevite; 01-14-2018 at 10:08 AM.

  4. #4
    Join Date
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    2009 BMW 328i E90 N52B30

    Debris in engine block oil ducts 2009 328i E90 N52

    Thank you JLevite😊

    As as a background, I started replacing a Valve Cover Gasket.... and found 1/4” oil gunk all over the interior of the camshaft housing, lots and lots of gunk on valvetronic, sensors, chain, springs, CCV valve, Oil Can, Inside oil filter housing, ALL OVER, it had to me removed by hand with artist spatula lots of rags, brushes and kerosene; and I am planing to replace the oil pan gasket under the car.... I expect to find much more gunk down under.

    After all is done, I will change new oil, combined with one liter of transmission oil, to “wash” inside the engine and drive for hundred miles and change oil

    In this scenario that debris, (plastic rubber cap of 1/2” long x 1/4” diameter - Hollow Cylindrical shape) will stuck at every piece of gunk every couple of inches.

    1. Attached a picture of the plastic cap for the brush edge, 1/2” long x 1/4” diameter, hollow flexible ruber.
    2. I think it fell in the oil passage circled In the attached pictures; I am not sure if in that vertical duct the oil flows upward, or downspout to the crank case, hopefully does not clog oil ductwork on the engine block, on the Magnesium Shell / Jacket.
    If somebody could please teach me the oil flow stages, passing through what components?

    If it flows down to the crankcase:

    3. Will it clog the oil pump grill, or its chain, or the pump itself?, is a diaphragm or ventury, or gear pump?, electrical independent? Or mecanic through the serpentine belt?

    4. If it passes the pump, and goes to the filter housing, it could clog any of the 3 orifices shown in the picture.... one of them is 1/4” diameter, and the other has a valve....

    5. Would it worth trying to vacuum suck it?

    6. The option would be remove the cilindervhead (Is it possible without disassembling the camshafts?

    If Oil flows upward on that vertical duct.... that piece could jam a valve guide, a cam, , a rocker arm, the Valvetronic worm... H A V O C.

    What would you do?

    A5366C70-25D3-4D59-9289-41E2E28634EA.jpeg4994510C-5944-4EEC-AA56-91B9A5BF9089.jpeg2DDF2CC7-95F3-4029-93E0-3143210A28D6.jpegC831354D-E049-49EE-80E5-83F063F4B7F7.jpeg
    Attached Images Attached Images
    Last edited by Rlequerica; 01-15-2018 at 01:25 AM. Reason: pictures
    Rod Lequerica. - Miami FL
    2009 BMW 328i E90 LCI Sedan Type PH77
    Engine: 6cyl 3lt N52B30A - Auto Trans: GM GA6L45R
    VIN WBAPH775X9NM Plus 5 last serial numbers
    EL_LEQUE_DELAE@YAHOO.COM
    +1 (786) 239 1329)

  5. #5
    Join Date
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    2009 BMW 328i E90 N52B30
    Following video of the Oil Filter Housing makes me fear a clogged passage with that debris.

    https://m.youtube.com/watch?v=z4PIVyBr05I
    Rod Lequerica. - Miami FL
    2009 BMW 328i E90 LCI Sedan Type PH77
    Engine: 6cyl 3lt N52B30A - Auto Trans: GM GA6L45R
    VIN WBAPH775X9NM Plus 5 last serial numbers
    EL_LEQUE_DELAE@YAHOO.COM
    +1 (786) 239 1329)

  6. #6
    Join Date
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    Location
    Florida
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    2011 BMW 328i
    I am not an expert, but If I remember right it either gets crushed so small nothing gets clogged, or it is absorbed by the oil filter. That is weak plastic that will be crushed and most likely melted. Try vacuuming it out. using some fuel line hose for motorcycle or small engine. tape it to the shop vac and slip it where it went.

  7. #7
    Join Date
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    I found out that that conduct (spout) where the debris did fall, goes directly down to the carter.
    I injected kerosene with a syringe on that spout, to un-glue the debris from the spout full of oil gunk, and push it down, I did an oil change and the debris exit with the oil, and I trapped it in a colander.

    I am so Happy ...not to have to remove the carter nor the cylinders head.
    I was definitely not going to start the engine and allow that debris to stuck in the oil conducts, the oil pump, or the piston or a valve and suffer same havoc than what a piece of gasket crumbles inside the engine.

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