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[DIY] Oil catch tank

Discussion in 'Do-It-Yourself Garage' started by Izso, Jul 13, 2011.

  1. Izso

    Izso Boooooossst
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    I never understood why engine manufacturers routed blow-by gases back into the intake manifold. All the oil vapour (read : Oil) gets trapped there and completely clogs the throttle body and intake manifold causing sluggish performance, inaccurate idling and in some cases engine dying off due to overly low idling.

    In order to counter this problem, some budding aftermarket enthusiast created the Oil Catch Tank (OCT) and connected it to the PCV valve catching all the oil vapour therefore keeping the intake manifold relatively clean.

    [​IMG]
    Picture taken from ZTH sales pages, copyright and all belong to the owner, not me

    So I was thinking, is there a DIY-er way of doing this OCT without spending too much? Yes there was.

    Tools needed :
    1. Iswara Fuel filter
    2. Automotive rubber hose
    3. Clamps

    [​IMG]


    Locate the PCV valve in your car (usually it's a rubber hose going from your cylinder head going into your intake usually before the throttlebody).

    [​IMG]


    Replace this hose with your makeshift OCT and you're pretty much done.

    [​IMG]


    The Iswara fuel filter has paper filters in it which will trap the oil vapour (read : Oil) and collect it in the filter. So be sure to replace the filter once it fills up (eventually). RM6 bucks give or take!

    Enjoy! :biggrin:


    Disclaimer : I've only done this for my Wira, Myvi and Toyota Unser without adverse effects. I do not and will not claim that this works for all car makes and models
     

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    #1 Izso, Jul 13, 2011
    Last edited: Jul 13, 2011
  2. mADmAN

    mADmAN Senior Member
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    i like this... especially the filtering part... this can help ensure that only gasses go back to the intake manifold and not oil that managed to escape the tank....only downside is that its so friggin small...and everytime it fills up u need to buy a new filter. would prefer the type that u can empty out and reuse..

    for the filtering some people use those stainless steel scourer ball (those stainless steel mesh ball thingy used to wash dishes) and unravel them abit and shove them in the OCT. it helps to catch even more oil in the vapor.
     
    #2 mADmAN, Jul 13, 2011
    Last edited by a moderator: Jul 16, 2011
  3. Izso

    Izso Boooooossst
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    Just for the record, I just discovered I connected the OCT to the wrong hose. I used the breather hose instead of the PCV!

    (This is a Myvi btw)

    So if anyone is doing this for their Myvi, please stay tuned. I will make corrections and post up followup pictures soon
     
  4. DanzEterna

    DanzEterna Moderator
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    izso,
    great diy bro...im gonna try it too...
    u think it works for perdana ah?
     
  5. Izso

    Izso Boooooossst
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    Sure can Danz. Just locate the PCV valve pipe which goes from your cylinder head to the intake manifold. Usually there's two, one as a 'breather' and the other is the PCV. You'll wanna hook the OCT to the PCV
     
  6. BoxCarRacer

    BoxCarRacer Senior Member
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    Thanks Izso. Well Done.

    Anyway, the breather is the one before throttle body hile the PCV is the one connected to the intake manifold. Correct?
     
  7. Izso

    Izso Boooooossst
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    That would be correct!
     
  8. kaderAE101

    kaderAE101 5 Year | Silver

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    Hi Bro

    On the average, how many km, does that oil filter last ?
     
  9. Izso

    Izso Boooooossst
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    Um... I change it every 20k km. But even then it's barely 1/4 full
     
  10. pangyau

    pangyau Senior Member
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    Izso,

    Thanks for the good idea.
    The best part is, the OCT you invent doesn't consume much space like other product.
    I wish to try on my 4G63T...
     
  11. Izso

    Izso Boooooossst
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    Ok some updates.

    I realised I connected the OCT to the wrong hose and used the breather hose instead of the PCV. How did I know? Apart from a friend pointing it out, the original hose I pulled out was pretty dry. The PCV hose that I pulled out today was wet and oily. A pretty good indicator of where to connect your OCT.

    I pulled out the OCT, plugged the original hose back and swapped out the PCV hose.

    So here's the updated product :

    You can make out a little bit of oily bits around the green coloured sleeve.
    [​IMG]


    I connected the other end to the bit that goes into the intake manifold.
    [​IMG]


    Cable tied it a bit to keep it firmly in place and I'm done!
    [​IMG]
     
  12. mines998

    mines998 5 Year | Silver

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    I think for NA should be no problem. But for turbo need be careful the back pressure end up yr engine oil needle fly up it give you more problem.

    Anyway the invention look cute.
     
  13. infinity.melvin

    infinity.melvin SlowPoke
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    nice DIY! where to buy those items for DIY though?
    im located at KL/PJ
     
  14. Stasis21

    Stasis21 5 Year | Silver

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    Ohhhh, so that's what the oily hose is in my Kelisa intake. Was wondering what engine oil is doing in the intake... I thought my engine oil leaking :tongue:. I got 1 spare saga filter, gona get some rubber hose and try this out :top: . Thanks for the DIY.
     
  15. radhie

    radhie Senior Member
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    done bfore on my previous car, kelisa,only cost me rm5 for the fuel filter.just find out can diy it on myvi..
    thanks bro!
    will try it out on my myvi..
     
  16. khellvinne

    khellvinne 5 Year | Silver

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    Thanks for the info, now I know why there is a need of oil catch tank. And also can plan for my installation.
     
  17. TitanRev

    TitanRev ModMod
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    madman, sorry. I accidentally click the wrong button on the post...hence the "edited by TitanRev"
     
  18. biz-da-tech

    biz-da-tech Senior Member
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    bro can have the picture of 4g1 series OIL catch tank DIY picture? the noob guide
     
  19. v1ctorong

    v1ctorong Senior Member
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    Hi,

    Really a big thank you. As i am trying to figure out how to get a small size OCT and dang dang, read your post.

    Thanks again, it will be very helpful as i almost need to clean my t.body every 20~30k due to regular high rev.
     
  20. Izso

    Izso Boooooossst
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    Sure. I'll get it documented once I dismantle mine from my 4G15 and reassemble. I'll get it done tomorrow morning.

    ---------- Post added at 11:39 PM ---------- 6 hour anti-bump limit - Previous post was at 11:38 PM ----------

    You can get all of these things from your local friendly spareparts shop.
     

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