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  1. #106
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    Might be my eyes, but I don't see any water diverters in there.
    Maybe you pulled them out?
    Hate to be a pest, but could you snap pics of both seperate sides of motor that includes all 3 holes with water passages?
    Had a overheat problem on a motor kinda recently that turned out to be diverters, after I had replaced stats, poppets, grommets, pump and housing, water jacket gaskets, then finally head gaskets, where I found distorted diverters in the block passages.
    Thank you, just curious.

  2. #107
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    Sure , at work will when I get home. Here is where my amateur status comes into play on outboard engines. What do the diverters look like? I dont think there were any extra pieces.
    Respect no wake zones!!! Evinrude guys need a place to race too.

  3. #108
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    Look like pieces of fuel line, inserted between cylinder and water jacket.Click image for larger version. 

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ID:	452730Here's what mine looked like (distorted), and here's what I replaced it with. (Fuel line). They direct (divert) water to flow around cylinders to cool properly.In my kooky sideways pic, you can see the diverter in the middle, between cylinders, and also another one at the bottom of block, uh, to the right side of the one in the middle.
    Last edited by rochelle howell; 11-15-2019 at 12:30 PM.

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  5. #109
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    "production" 2.0's, 2.4's, 2.5's dont have diverters.....

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  7. #110
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    So all those pics of 2.4 merc with diverters in block are "modified" cooling systems or race motors?
    My bad.
    Good to know, thank you!

  8. #111
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    some add 'em to their stuff 'cause it can be beneficial but, yeah only came in ha hi perf blocks...….

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  10. #112
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    When does it start to be beneficial Tommy? Over 8k? Can they be run on any cooling system?

  11. #113
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    Looks like jets in backwards port and starboard, but not lean enough to be the heat problem.

    The first piston pic where it’s busted up is probably causing silent knock (knock condition or ping you can’t hear) that will cause excessive heat.

    Discoloring looks like scuffing, and is that oil or is the chrome cracked in that one pick. That will also cause excessive heat.

    But since it it hasn’t been done ohm test the temp sensors to confirm their not bad. Not an pressing concern since you found physical damage, but might as well hit them up and take care of if needed while doing the rest.

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