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Urgent timing help needed.

Discussion in 'Gen 2 Prius Main Forum' started by Prius92, Nov 16, 2024 at 2:14 PM.

  1. Prius92

    Prius92 Active Member

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    Engine was installed in time.
    No slack in timing chain.

    But here is what I discovered...

    [​IMG]

    Piston #1 is set to TDC, cam marks and chain line up.

    The pulley shows two holes up and down, and 3 for timing.

    [​IMG]


    But the book shows the alignment of the outer 3 holes and the inner 2 holes in different positions. This is a brand new OEM damper pulley.

    [​IMG]

    My 2 inner holes are pointing up and down, like they should, but the outer 3 holes are not.
     
  2. Hayslayer

    Hayslayer New Member

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    The damper on your car and the one in the drawing are not the same. The drawing has the "3 marks" on the right side of the hole, your damper has them on the left. There's nothing you can do to make your damper match the drawing, unless it's reversible and also has marks on the inside.
     
  3. Prius92

    Prius92 Active Member

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    Looking at other used dampers, a lot of them don't match up, some are WAY OFF. Which is really odd because those outer marks are supposed to be for setting the timing in inspection from what I showed from the book.
     
  4. Hayslayer

    Hayslayer New Member

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    My damper doesn't even have the "3 marks", only has the 2 holes
     
  5. Brian1954

    Brian1954 Senior Member

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    The three drill points are not for timing. I am guessing that they are for balancing the pulley. The timing mark is the notch on the outside diameter of the pulley, as should in the zoomed in circle in the right side of the diagram that you posted.
     
  6. Prius92

    Prius92 Active Member

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    Well it appears to be in time then. I have no clue what else it could be other than a bad cam phaser?
     
  7. Brian1954

    Brian1954 Senior Member

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    It is very hard to see the notch in the OD of the pulley in your picture, but it does not seem to be at TDC. Can you post a new picture taken more at the top of the pulley showing the notch?
     
  8. Tombukt2

    Tombukt2 Senior Member

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    That's correct those marks are for balancing the pulley they have nothing to do with anything to set timing engine or anything those three dots could be anywhere on the pulley If you get an aluminum light white one it won't have any at all I don't think they make them for the one NZ. But they do for other vehicles and I have them on some vehicles. All your concerned about is the notches that are ground on the very outer part of the v and of course whatever timing marks are on the chain and are on the sprocket looks like you're good to go You should be running and driving not worrying for the most part everything looks pretty spot-on.