Oil Catch Can, Eliminate that knock!

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by danlatu, May 22, 2017.

  1. ASRDogman

    ASRDogman Senior Member

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    It's not legal do this, in all states.


     
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  2. Dilbone

    Dilbone Junior Member

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    I've been known to touch a suspected coolant leak to my tongue to confirm many a time. I just spit, rinse, and spit some more. A taste of residue does nothing...I'm not doing shots of it lol

    I may have to take the cooler to the diy car wash and give it a good blast to help it along.

    SM-G981V ?
     
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  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Just for the record: it’s not even legal to do a closed oil catch can, one that delivers to the intake manifold. But that is pig headed regs, probably better for the environment.
     
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  4. Dilbone

    Dilbone Junior Member

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    Finally pulled the head. None of the pistons nor valves look like they've been steam cleaned although #3 the valves and head are wet. This was definitely caught really early. I just changed the oil last month and it wasn't milky in the least. It is now, so this was definitely a recent onset.

    Has anyone pulled pistons at this point to replace the rings? I'm thinking about it. 20201229_190120.jpg 20201229_191018.jpg

    SM-G981V ?
     
  5. mjoo

    mjoo Senior Member

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    I think you have to split the engine before you can reach the crank.

    moto g power ?
     
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  6. ASRDogman

    ASRDogman Senior Member

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    Glad you caught it early! The head is probably fine.
    Make sure you replace the valve guide seals....

    To remove the piston, you have to remove the oil pan.
    To remove the oil pan, you need to remove the engine.
    Since the head is removed, it should be too much harder to remove the block.

     
  7. Dilbone

    Dilbone Junior Member

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    I hadn't looked too closely under the car to see if the pan can drop with the block in the vehicle, but I've replaced both rods and mains as well as rings with the block still in the car on more than one vehicle

    SM-G981V ?
     
  8. ASRDogman

    ASRDogman Senior Member

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    You were able to remove the oil pan on the Gen3 engine?
    From what I read, to access some of the bolts you have to pull the engine.


     
  9. Dilbone

    Dilbone Junior Member

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    No, not a gen 3 prius...multiple other vehicles. I've only owned this since July and haven't had the godforsaken splash guard off to see if the oil pan is large enough to be able to get to everything from the bottom.

    SM-G981V ?
     
  10. mjoo

    mjoo Senior Member

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    There's an upper oil pan and lower oil pan. Both block access to the crank.

    engine parts diagram

    moto g power ?
     
    #1930 mjoo, Dec 29, 2020
    Last edited: Dec 29, 2020
  11. Mendel Leisk

    Mendel Leisk Senior Member

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    Pretty sure @mjoo is right; there’s a split line halfway down the block. You don’t touch the oil pan; just separate the two halves of the block.

    I’m totally an armchair mechanic, but pretty sure on this lol.
     
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  12. RightOnTime

    RightOnTime Senior Member

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  13. ASRDogman

    ASRDogman Senior Member

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    You sent an article about Toyota's instructions for replacing the pistons and rings.
    In it it said to remove the engine. Looking at it, it seemed you could NOT get the oil pan,
    or the lower part of the block removed with the engine IN the car.

    For most car engines that I've worked on all you have to do is pull the oil pan and you can get
    to the rod bolts. But according to the article you sent, you cannot do that on the Gen3 Prius engine.

    Since I haven't done this, I do not know....

     
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  14. Dilbone

    Dilbone Junior Member

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    Good to know fellas. I've got the Beck/Arnley head gasket set and bolts on the way.

    SM-G981V ?
     
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  15. Dilbone

    Dilbone Junior Member

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    Gasket pics Photo_2020-12-30_10-23-55_AM.jpg

    SM-G981V ?
     
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  16. Mendel Leisk

    Mendel Leisk Senior Member

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    If I'm not mistaken cyl 4 is towards bottom of pic? Between 3 and 4 looks most washed out?
     
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  17. tvpierce

    tvpierce Senior Member

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    Might want to consider an OEM Toyota filter kit. If you look online, I think you'll find it's not much more expensive if at all. I'm not sure I'd want all the work that's going into this to be riding on the quality of Beck/Arnley parts.
     
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  18. Mendel Leisk

    Mendel Leisk Senior Member

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    Part numbers in attachment. Screen grab:

    upload_2020-12-30_8-39-46.png
     

    Attached Files:

  19. Dilbone

    Dilbone Junior Member

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    Damn, already ordered from RA late last night maybe I can still cancel.

    They're that bad?

    SM-G981V ?
     
  20. ASRDogman

    ASRDogman Senior Member

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    Take a wire brush to it, then spray both sides with that "flex tape" spray and you'll be fine! :whistle:

     
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