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Thread: DIY - AVCS Filter Removal

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    TSOC bugeye Mafia Chung's Avatar
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    DIY - AVCS Filter Removal

    well, for those who want to remove this, it's fairly simple. Just remember that the OCV housing is cast iron, and torque ratings should be researched and used.[will add later] Excessive force will result in damage to your ocv and yourself.

    remove anything that will impede your working space,
    remove green shield. 12 socket / spanner required.
    RHS...
    P1010013_1.jpg
    a 17 socket with extension should be used, to loosen the bolt on the OCV. turn anticlockwise to loosen



    do not remove fully the bolt with the socket. There are two copper washers that may fall out, locations being on top and bottom of the bolt. Hold gently and remove. The filter may be inside!!! be careful not to let it fall out if it comes.
    P1010011_1.jpg
    Using a tweezer or any suitable tool, grasp the filter gently and lift out of the OCV.
    RHS...

    P1010004_1.jpg
    P1010009_1.jpg

    P1010007_1.jpg
    P1010006_1.jpg
    P1010008_1.jpg



    so now that we have taken out one side, we can put back the AVCS bolt.
    RHS...

    P1010005_1.jpg
    P1010004_1.jpg
    P1010002_1.jpg

    Put back on the shield..
    P1010010_1.jpg
    P1010003_1.jpg
    P1010001_1.jpg

    Mount back all parts that u removed to make space available.

    The left side of my car was a tighter squeeze, but the procedure was exactly the same.
    LHS...
    P1010014_1.jpg
    P1010015_1.jpg
    Last edited by Chung; 10-05-2011 at 09:37 PM.
    Cheap and fast won't be reliable. Cheap and reliable won't be fast. Reliable and fast won't be cheap.

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    TSOC bugeye Mafia Chung's Avatar
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    Re: AVCS Filter Removal

    procured from scoobymods.

    tsb 20-97-05 2.jpg

    tsb 20-97-05 1.jpg
    Last edited by Chung; 10-05-2011 at 09:38 PM.
    Cheap and fast won't be reliable. Cheap and reliable won't be fast. Reliable and fast won't be cheap.

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    Re: AVCS Filter Removal

    Nicely done.

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    Re: AVCS Filter Removal

    what's the purpose of the avcs filter?

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    Re: AVCS Filter Removal

    it would have been there to filter any debris that goes from the engine into the OCV, but it has a tendency to collapse, and one side cogs more than the other, causing timing ti go up slower on one side, and come down slower on the clogged side as in Trinidocs's case for eg. withn my case, it it did not have anything on it, but when i removed it, acceleration was smoother.

    this is only for the JDM cars equipped with active valve control.
    Cheap and fast won't be reliable. Cheap and reliable won't be fast. Reliable and fast won't be cheap.

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    Re: AVCS Filter Removal

    is active valve control something like vvt?

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    Re: AVCS Filter Removal

    something like it, but avcs acts throughout the rpm range, min to max as rpm increases.
    Cheap and fast won't be reliable. Cheap and reliable won't be fast. Reliable and fast won't be cheap.

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    Re: AVCS Filter Removal

    wish my car had that

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    Re: AVCS Filter Removal

    Quote Originally Posted by Chung
    withn my case, it it did not have anything on it, but when i removed it, acceleration was smoother.
    nice DIY Chung!

    but let me ask dood... didn't you also pull and clean the MAF sensor when you yanked the AVCS filter?? i'd been hoping to clean the filter at oil drains only, and to not completely remove... should i reconsider this??

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    Re: AVCS Filter Removal

    You could just clean them and replace. When I did mine one was crushed (careless mechanic) so I removed them completely and from what I've read is no problem. I also removed the filter to the turbo oil feed line but some turbos actually require the slight oil restriction that the filter provides.

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