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  1. #11
    PWCToday Guru banjomaniac's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    It's a mix of salt and sand and why is it only in 1 of the ports on the intake? There is some salt and sand in the ski around the engine, I wonder if he flipped it over or flooded it BUT again, why isn't it in all the ports. I gotta feeling I'm going to have to pull the head off.

  2. #12
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Very possibly flipped and flooded.
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  3. #13
    Top Dog west_coaster's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Do a leakdown test before pulling the head, it all 4 are equal and less than say 8-10%, I would leave the head on. I'd take all the intake components off and examine and clean them before firing that motor up. Pull the valve cover off too and look for rust, that will tell you if it was flooded or had water ingestion.

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  4. #14
    PWCToday Guru banjomaniac's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Already had valve cover off looking for anything wrong and possible stuck valve and it looks fine, no rust or debris. I'm going to clean up that sand,salt, corrosion and clean and check the throttle body and intake . I've never worked on one or know much about fuel injection but I'll do some reading and look through the service manual. Thanks for the help.

  5. #15
    PWCToday Guru banjomaniac's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Trying to identify this plastic clip that fell off when I pulled the throttle body off the engine.IMG_20180614_220543296-1152x864.jpg

  6. #16
    PWCToday Guru banjomaniac's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Also I have 2 green pins on the ecm plug and wondered if anyone has cleaned one of these for corrosion? I can probly scrape it carefully but wondered if it's ok to spray electrical cleaner on it, the kind you use on switches or electronic boards?

  7. #17
    PWCToday.com Is My Home Away From Home JR IN JAX's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Use CorrosionX spray [$20 a can] which is good for just about anything you can imagine. You can spray a smartphone circuit board and then operate it under water. It cleans off most of the corrosion.
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  8. #18
    PWCToday Guru banjomaniac's Avatar
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    Re: Pulling apart F12 engine to diagnose internal problems

    Thanks, I'll get some. Got the ski back together. Still just buzzing from the main relay? Checked the grounds, made sure positive battery cable is tight. Switched main relay with the one from my turbo no change? Is there something I'm missing? Gotta go to the Brew fest so back at it tomorrow!
    Last edited by banjomaniac; 06-16-2018 at 07:46 AM.

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