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Think I found my fuel issue....what the heck

  1. #15
    whats a goodtime cost? Nixonnow's Avatar
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    Thanks everyone. That was definately the problem I was having. She runs good idles good. All the things she is supposed to do. She's back. Thanks again.

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  3. #16
    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by bp298 View Post
    i also drain the bowls before towing any distance.
    I do the same thing, the last night at the river i flip off the fuel pump and idle floating over the trailer, when i hear the engine speed start to pickup i shut it down. I was told by an engine builder that what most people dont realize is that the fuel in the bowls will make it's way into the cylinders while towing and ends up washing the oil off the cylinder walls.

  4. #17
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    Quote Originally Posted by Shaun View Post
    I do the same thing, the last night at the river i flip off the fuel pump and idle floating over the trailer, when i hear the engine speed start to pickup i shut it down. I was told by an engine builder that what most people dont realize is that the fuel in the bowls will make it's way into the cylinders while towing and ends up washing the oil off the cylinder walls.
    Not counting that your boat trailer rides like shit compared to your car or truck. The bouncing on the trailer for hours and hours, over time can not only tweek your float's little tang for the needle, but is hell on the needle assmblies too.



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  6. #18
    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by gn7 View Post
    Not counting that your boat trailer rides like shit compared to your car or truck. The bouncing on the trailer for hours and hours, over time can not only tweek your float's little tang for the needle, but is hell on the needle assmblies too.
    Bob, are you saying that empty bowls can do this or full?

  7. #19
    gn7
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    No, I am saying that was left behind when the gas evporated.

    What can happen in an empty zinc Holley is white rust. Hard crusty shit that won't disolve with things like spray carb cleaner, acetone, etc.
    It is caused by water in the E10 pump, or even moisture that gets in bowls from condensation. It doesn't take much to get started, and its like any other rust, it never sleeps.

    If the goldish dichromate on the carb is compromised, its a potential victum. Alum bowls and metering blocks are a better bet. Its a zinc problem.



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  8. #20
    I'm No Expert Shaun's Avatar
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    Ok, i see what your saying. I could see how a half full bowl could cause the floats to bang around into the needles!

    I should pull one my bowls and see what they look like. They were brand new when i put them on this engine back in June of 2009. This will be my fourth season on them.

  9. #21
    I'm No Expert Shaun's Avatar
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    I was curious so i went out and pulled a bowl, looks pretty clean to me.
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  10. #22
    whats a goodtime cost? Nixonnow's Avatar
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    Damn a lot cleaner than mine. I think mine had a lot to do with the glass tanks that were in my boat before I switched to alum. There was some wicked nasty stuff going on inside of those glass tanks. Can only imagine what was sent into the carb.

  11. #23
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    Quote Originally Posted by Nixonnow View Post
    Damn a lot cleaner than mine. I think mine had a lot to do with the glass tanks that were in my boat before I switched to alum. There was some wicked nasty stuff going on inside of those glass tanks. Can only imagine what was sent into the carb.
    It was from your tanks and possibly from the can on the water seperator. That stuff was fine, and would pass right thru most filters. That stuff did not form in the carb, it was brought in with the fuel. Now that your tanks are gone and iof your keep the filter/seperator clear of water, you shouldn't see that again.



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  12. #24
    I'm No Expert Shaun's Avatar
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    I run a sierra fuel/water separator on my deal, i change the filter once a season. I've been meaning to add another filter between the pump and carbs but haven't gotten around to it yet. What you have on your fingers is very fine, looks to me to match the color of old delaminating fiberglass.
    Last edited by Shaun; 06-03-2012 at 07:43 PM.

  13. #25
    whats a goodtime cost? Nixonnow's Avatar
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    Quote Originally Posted by Shaun View Post
    I run a sierra fuel/water separator on my deal, i change the filter once a season. I've been meaning to add another filter between the pump and carbs but haven't gotten around to it yet. What you have on your fingers is very fine, looks to me to match the color of old delaminating fiberglass.
    You talking about just a little inline filter between your pump and carbs? Here's what I've got on my transom passenger side....


  14. #26
    I'm No Expert Shaun's Avatar
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    Ya mine looks similar to that, it's the only filter i run at the moment.
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