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New piston design.?

Discussion in 'Gen 3 Prius Main Forum' started by taxidriver50005, Mar 15, 2019.

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  1. Raytheeagle

    Raytheeagle Senior Member

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    Nope;).

    Since the egr takeoff is still before catalytic converter, you'll get the same buildup:cool:.

    But at least there are videos and plenty of experienced folks available to help(y).
     
    #21 Raytheeagle, Jul 24, 2020
    Last edited: Jul 24, 2020
    Majafamily and Grit like this.
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    ^ I should update this. I've heard the new rings and old pistons (or vice versa) are not compatible. Accordingly, it seems likely what happened was "sometime" through 2014 model year, both the rings and pistons were switched (to the new part numbers), at the same time.
     
    #22 Mendel Leisk, Jul 24, 2020
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  3. johnHRP

    johnHRP Active Member

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    I believe you, even 4th gen Prius with after cat-EGR still have the same issue. In short, any cooled EGR design need regular maintenance in EGR and intake manifold cleaning. It will still be a problem until Toyota come out with something radicals like how Toyota/Lexus used dual-injection (direct and ports) to eliminate common GDI intake valves problems.
     
    #23 johnHRP, Aug 27, 2020
  4. bisco

    bisco cookie crumbler

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    oh no...:unsure:
     
    #24 bisco, Aug 27, 2020
  5. mjoo

    mjoo Senior Member

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    Do you know someone who's torn into a Gen 4 EGR??
     
    #25 mjoo, Aug 27, 2020
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  6. FnRedPrius

    FnRedPrius Active Member

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    I have one in my parts bin, but the donor engine had only 5K on it. It looks the same for the cooling fins and surround tank,
     
    #26 FnRedPrius, Sep 3, 2020
  7. wr69

    wr69 Member

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    #27 wr69, Nov 22, 2021
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