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Vent connection question

Discussion in 'Gen 4 Prius Technical Discussion' started by Rubdubb, Jul 3, 2019.

  1. Rubdubb

    Rubdubb Junior Member

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    On the Gen 4 engine valve cover, passenger side of the engine, there is a hose barb on top of the valve cover. Can someone tell me where this connects? It has to just be vented back to the intake but I have no clue where.

    I'm doing a Gen 3 to Gen 4 engine swap and this isn't on the Gen 3. It's my last challenge to overcome.
     
    #1 Rubdubb, Jul 3, 2019
  2. CooCooCaChoo

    CooCooCaChoo Active Member

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    Its probably the PCV. That usually goes back into the intake after the air filter box. Somewhere...
     
    #2 CooCooCaChoo, Jul 4, 2019
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  3. Mendel Leisk

    Mendel Leisk Senior Member

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    #3 Mendel Leisk, Jul 4, 2019
  4. Rubdubb

    Rubdubb Junior Member

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    Not that one actually, the one I am referring to be doesn't seem to do anything with. If you watch from 16:00 on you'll see the small open barb sticking straight up on the left.
    I did watch his videos before going this route but I took an entire (easier) approach to the swap. By that I mean I pulled the engine with everything still on it except the water pump. So much easier to swap all the manifolds and components that way. I also routed a few things differently, for example I tapped the radiator pipe and installed a hose barb so it functions identical to stock rather than tying in to another line. But I never wouldn't have attempted this without those fantastic videos to assure me it would work.
     
    #4 Rubdubb, Jul 5, 2019
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  5. Mendel Leisk

    Mendel Leisk Senior Member

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    Ok, I see, the vertical spigot at the passenger side end of the valve cover.

    Did you check if it actually is a pass-through hole there, in that spigot? I'm just wondering: could it be an attachment point for the ornamental cover?
     
    #5 Mendel Leisk, Jul 5, 2019
    Last edited: Jul 5, 2019
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  6. Tande

    Tande Active Member

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    Bingo! .....we have a winner! ......
     
    #6 Tande, Jul 6, 2019
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  7. Mendel Leisk

    Mendel Leisk Senior Member

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    Ah good, you checked yours?
     
    #7 Mendel Leisk, Jul 6, 2019
  8. Tande

    Tande Active Member

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    Yup!.......changing oil today & I thought....."Guess I'll See If I Can Figure/Out What These Guys Are Talking About"......
     
    #8 Tande, Jul 6, 2019
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  9. Rubdubb

    Rubdubb Junior Member

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    Now see... This is funny... I successfully retrofit an engine to fit where it wasn't meant to but I need help figuring out that what looks like a hose connection is really just a cover mount... Awesome
    Thanks guys for the help and the laugh (at myself)
     
    #9 Rubdubb, Jul 8, 2019
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