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2011 Prius startup noise

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Raphael Muscarelle, Oct 5, 2019.

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  1. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    My engine ran great even with blown head gasket.

    Only symptoms we're it was getting hydrolock when it was stoped for more then a couple of minutes.
    I caught it before it ran out of coolant so it never overheated.

    Moral is: don't let it go because things don't fix themselves.
    Posted via the PriusChat mobile app.
     
    #161 Raphael Muscarelle, Oct 28, 2019
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  2. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Can't see timing in that.
    Posted via the PriusChat mobile app.
     
    #162 Raphael Muscarelle, Oct 28, 2019
  3. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    But I got more then age against me.

    In my lower back
    I have generated facets, stenosis, and atrophied muscles surrounded by the L4 L5 and sacrum. Since it all was naturally fused from birth. Unfortunately it all isn't fused anymore.
    Posted via the PriusChat mobile app.
     
    #163 Raphael Muscarelle, Oct 28, 2019
  4. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Oh those images were in disassembly.
    During my timing fix I experimented and turned crank 4 times and chain advanced 3 or so links. Turned it 4 more times advanced again. Yet 4 more turns and advance again.
    When I took it apart for timing fix it was amazingly on the marks at TDC. But crank off 1 tooth.

    Posted via the PriusChat mobile app.
     
    #164 Raphael Muscarelle, Oct 28, 2019
    Last edited: Oct 28, 2019
  5. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Maybe we're prone to let things slide, because organic things, say our bodes, can sometimes fix themselves, heal. But mechanical, not so much...
     
    #165 Mendel Leisk, Oct 28, 2019
  6. ASRDogman

    ASRDogman Senior Member

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    I'm 92, back has always been messed up, joints, eyes, ears, heart, etc.....
    Should have listened to my Dad, he said "don't get old". Too late...

     
    #166 ASRDogman, Oct 28, 2019
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  7. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    92 wow I hope I don't see that.
    Posted via the PriusChat mobile app.
     
    #167 Raphael Muscarelle, Oct 28, 2019
  8. SFO

    SFO Senior Member

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    @bisco once said; "...expect issues to start cropping up, you had a good run." (y)
     
    #168 SFO, Oct 28, 2019
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  9. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Yup they to for instance have more oil pressure now have leak.

    In the area of Oil pressure sensor it was wet when I took it apart but no dripping yet. I replaced pressure sensor but now I have drip. Spent all day trying to track drip down. Gonna try to reseal pressure sensor tomorrow. If that don't work I might try UV dye.
    Posted via the PriusChat mobile app.
     
    #169 Raphael Muscarelle, Oct 29, 2019
  10. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    God couldn't make anything unbreakable neither can humans.

    Posted via the PriusChat mobile app.
     
    #170 Raphael Muscarelle, Oct 29, 2019
  11. douglasjre

    douglasjre Senior Member

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    thank you I was wondering why I was seeing what I was seeing. As an offshoot I'd really like to learn something from this. It sounds like you were successfully able and not collide the pistons with the valves. This would mean to me that they are not interference valves. Is this correct?
     
    #171 douglasjre, Oct 29, 2019
  12. douglasjre

    douglasjre Senior Member

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    FYI me and my friends have a total of 16 Priuses 14 of which are 3rd gen. We have just done our second head gasket. as a test to see if the bolts were loose I tried tighting them first and found they were all about 170 foot pounds. I consider this sufficient evidence to say looseh bolts are not the cause of a leaking head gasket.
     
    #172 douglasjre, Oct 29, 2019
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  13. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    It is an interference engine.

    When I was testing I did learn the intake valves will hit the heads.
    This was a problem with belt driven timing. The teeth would strip off the belt after so long of use. These engines would need timing belt replaced fairly often. Somewhere there is a list of which engines. We were given a list of them in auto school oh so many years ago.

    Unless there is a catastrophic break in chain or severe timing misalignment during install we are good.

    Posted via the PriusChat mobile app.
     
    #173 Raphael Muscarelle, Oct 30, 2019
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  14. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Ok

    Posted via the PriusChat mobile app.
     
    #174 Raphael Muscarelle, Oct 30, 2019
  15. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Ok hope leak is fixed.

    Now that was rookie blunder. I got almost a turn our of the oil sensor.

    Posted via the PriusChat mobile app.
     
    #175 Raphael Muscarelle, Oct 30, 2019
    Last edited: Oct 30, 2019
  16. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Arrg used UV dye still looks like leaking from oil sensor despite ultra blue silicone. Took sensor out cleaned off and used locktiite 242 waiting on dry time.

    I can see how locktiite might work over silicone becouse of how thin it is. When I took out sensor the silicone seemed to stay on outer threads where locktiite should permeate through all the threads

    Posted via the PriusChat mobile app.
     
    #176 Raphael Muscarelle, Nov 1, 2019
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  17. The Critic

    The Critic Resident Critic

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    The oil pressure switch is sealed using thread sealant. Loctite is only used to seal threads to prevent the object from backing out; it is not used to seal for the purpose of preventing leaks.


    iPhone ? Pro
     
    #177 The Critic, Nov 1, 2019
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  18. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    Not according to the manual
    Note attached pdfs

    I think I sent correct ones View attachment 0_Toyota Adhesive & Sealant Cross Ref.pdf View attachment 2010 Toyota Prius Repair Manual - oil pressure switch install.pdf

    Posted via the PriusChat mobile app.
     
    #178 Raphael Muscarelle, Nov 1, 2019
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  19. The Critic

    The Critic Resident Critic

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    That is strange. Every oil pressure switch I have ever installed has been with thread sealant. Never had any leaks either.

    The one on my Prius had been sleeping. When I did the head gasket I resealed with thread sealant. No leaks or seeps in over 14k miles.




    iPhone ? Pro
     
    #179 The Critic, Nov 1, 2019
  20. Raphael Muscarelle

    Raphael Muscarelle Active Member

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    If oil switch was leaking it isn't now.

    But I see the timing cover looks like it's leaking near head gasket

    Posted via the PriusChat mobile app.
     
    #180 Raphael Muscarelle, Nov 1, 2019
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