Does my 2008 Cylinder #1 look OK?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by DavidinNevils, Mar 7, 2026 at 6:27 PM.

  1. DavidinNevils

    DavidinNevils Junior Member

    Joined:
    Oct 18, 2021
    27
    2
    0
    Location:
    Georgia
    Vehicle:
    2008 Prius
    Model:
    Two
    I'm not sure what to make of these borescope images.

    Does the cylinder look damaged or OK, please?

    Thanks!
     

    Attached Files:

    #1 DavidinNevils, Mar 7, 2026 at 6:27 PM
  2. Hayslayer

    Hayslayer Active Member

    Joined:
    Nov 6, 2024
    457
    264
    0
    Location:
    USA
    Vehicle:
    2009 Prius
    Model:
    Touring
    Crosshatch is still there, like most. The small vertical lines don't look significant. Why is there moisture (water/coolant?) in the cylinder?

    Is that the right sparkplug or is that a gen 3 plug you're using, it looks like an SC16HR11?

    Gen 2 Denso should be an SK16R11

    I hope like crazy you're not using that gen 3 plug in your gen 2. Holy F.

    SK16R11 gen 2 thread is 14mm and reach is 19mm
    SC16HR11 thread is 12mm and reach is 26.5mm
     
    #2 Hayslayer, Mar 7, 2026 at 6:44 PM
    Last edited: Mar 7, 2026 at 6:53 PM
  3. DavidinNevils

    DavidinNevils Junior Member

    Joined:
    Oct 18, 2021
    27
    2
    0
    Location:
    Georgia
    Vehicle:
    2008 Prius
    Model:
    Two
    Sorry, I'm fussing with two of our 3 Prius's and posted this in the wrong sub-group with the wrong title.

    These pics are from our Gen 3 - 2012.
     
    #3 DavidinNevils, Mar 7, 2026 at 7:31 PM
  4. DavidinNevils

    DavidinNevils Junior Member

    Joined:
    Oct 18, 2021
    27
    2
    0
    Location:
    Georgia
    Vehicle:
    2008 Prius
    Model:
    Two
    Sorry, I mislabeled and mis-posted - it's our 2012. Someone else looked and thought the deposit looked like burned oil.
     
    #4 DavidinNevils, Mar 7, 2026 at 10:19 PM
(You must log in or sign up to post here.)