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  1. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

  2. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Also fuel delivery is one of my suspicions… changed fuel and replaced fuel filter. Ran some sea foam to hopefully clean out injectors. Holding out for hope it’s not fuel pump
  3. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Here’s some video… at idle, 1400 and 2000 rpm
  4. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Don’t have smart craft gauges. RPM fluctuates btwn 900-1000 at idle
  5. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Anything is possible, how could I test this?
  6. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Appreciate the intel & response. Ya, the shaking in neutral was why I originally moved on from some kind of prop issue, but the higher revs & lower power due to ventilation issues around prop that others described with the prop bore sleeve is very similar to the experience in performance I'm...
  7. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Yes, possibly. I pulled & inspected all the spark plugs and checked compression in all cylinders... everything from that perspective seems good. Dont have a timing light, is there a simple way to check timing?
  8. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Thanks for your response. No I am referring to the bore sleeve which is a white plastic piece that seems to be evident in every Merc under 150hp, apparently fairly common this part breaks and when it does causes ventilation of prop. video here Pulled the prop on my 200hp and this piece was not...
  9. EagleMtn

    Should there be a Sleeve Propeller Bore on 200HP Merc 3.4L V6

    Having issues with intermittent engine vibration on 2019 Mercury 200HP 3.4L V6. 76 hours on the engine. This is a new problem that occurred at WOT. Initially I figured I hit something and damaged the prop, but can't see any external damage and engine has a vibration while idling in neutral as...
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