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2012 Prius V Timing Chain Replacement

Discussion in 'Prius v Technical Discussion' started by Adam DeVries, Jun 6, 2018.

  1. Adam DeVries

    Adam DeVries New Member

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    Anderson, IN
    Vehicle:
    2012 Prius v wagon
    Model:
    Four Touring
    I have a 2012 Prius V that blew a head gasket. I replace the head gasket but I did not mark the timing gears. Does anyone know what all of the marks mean on the exhaust gear and which of the two lines on the intake gear I should use?
     

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    #1 Adam DeVries, Jun 6, 2018
  2. tvpierce

    tvpierce Senior Member

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    Location:
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    Vehicle:
    2013 Prius v wagon
    Model:
    Five
    I just Googled "3rd gen prius timing chain alignment".

    This video shows pretty well:
     
    #2 tvpierce, Jun 8, 2018
    Mendel Leisk and Raytheeagle like this.
  3. Adam DeVries

    Adam DeVries New Member

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    2012 Prius v wagon
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    Four Touring
    Thanks. I watched that video but mine does not look like that. I have two slots on my intake cam gear. and no dot. I ended up using the one on the CCW side of the intake gear. It runs but it is giving me the P3190 error now. I see it could be the cam or crank position sensor. Maybe it is sensing that something is a little off. Amy help would be appreciated.


    Here is a video. It would not turn over in this position. When I put in to the slot on the left (Intake gear) it runs but I have the check engine light.
     
    #3 Adam DeVries, Jun 9, 2018
  4. Dxta

    Dxta Senior Member

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    II
    InShot_20170124_055244.jpg IMG_20170209_130055_068.jpg InShot_20170118_193013.jpg InShot_20170124_055244.jpg IMG_20170209_130055_068.jpg InShot_20170118_193013.jpg I can't remember if your engine is a 1.8L or not. But I guess it should be a 1.8l.

    If you can't get the marks to use, in such situations, this is what I normally would do:

    1. Remove the chain again, after removing the chain tensioner.
    But ensure you turn the crankshaft pulley to its TDC.

    2. Turn both the intake and exhaust camshafts, so that the loops (nose) on the #1camshafts are facing outward horizontally.
    At this position, turn the "bucket" like stuff covering the valves. I think its called the bucket bearings or so. They should feel free to rotate, and not ha e any resistance. If there are resistance as you try turning the bearings, then the camshafts are still not properly set.

    4. When done, assembly the timing chain cover, etc, and cover the valve cover, then start the car for some few minutes to observe how it works. This saves you the rigours of going to remove everything, if for instance there was a mistake from you.

    PS: Always get a spill catch mat to place under where the timing chain cover is located under the car. That would prevent engine oil spills.

    Pictures below were for a corolla 1.8L I rebuilt the engine last year.
     
    #4 Dxta, Jun 18, 2018
  5. Adam DeVries

    Adam DeVries New Member

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    Four Touring
    thanks for the message. My engine does not look like yours. My cam gears do not have the same marks as yours.
     
    #5 Adam DeVries, Jun 27, 2018
  6. farmecologist

    farmecologist Senior Member

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    Fascinating stuff here. So the Prius v (wagon) has different engine components? If so that is a very interesting observation. I was under the impression that the v (wagon) engine is exactly the same as the Gen3 Liftback.
     
    #6 farmecologist, Jun 27, 2018
  7. Dxta

    Dxta Senior Member

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    Yeah, I didn't say they look like yours. Tgatvwas from a corolla, and its for illustrative purposes
     
    #7 Dxta, Jun 27, 2018
  8. Adam DeVries

    Adam DeVries New Member

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    Four Touring
    I bought an engine out of a Prius v. I'll compare it to what i have to see if the timing is not set correctly. If I have the timing set correctly I will start troubleshooting the P3190 code. It doesn't look fun.
     
    #8 Adam DeVries, Jul 14, 2018
    Last edited by a moderator: Jul 14, 2018
  9. Abdelhamid

    Abdelhamid New Member

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    2010 Prius
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    I have toyota prius 2010, I replace the head gasket but I did not mark the timing gears. I didn't mark or blocked Cam tree .Does anyone can tell me how to assemble the chain?
     
    #9 Abdelhamid, May 3, 2020
  10. Prius V Dude

    Prius V Dude New Member

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    Vehicle:
    2012 Prius v wagon
    Model:
    Five
    Can anyone tell me if I should take the crankshaft pulley off to get to the timing chain cover? Does anyone have any tips on replacing the head gasket for my 2012 Prius V. Also I am in the U.S. and I believe the prius V is different in Europe. Thanks in advance.
     

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    #10 Prius V Dude, Dec 23, 2020
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