Fuel filter contaminents
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Fuel filter contaminents

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    Boat Nut sleekcrafter's Avatar
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    Default Fuel filter contaminents

    So what should you expect to find in your fuel filter? Was not running so hot at the last races, mostly idle issues. Anyway I drained the tanks, flushed the system, and changed fuel filter element. The canister bowl, had a fare amount of sand, carb bowls had a teaspoon of water. I cut the element apart, and found a little more sand, but not what I was expecting. My fuel jugs are clean, I fill 5 gallons at a time, so the whole container goes in. this is the first time in a while, I've had water issues, but the sand is bothering.
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


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  3. #2
    gn7
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    Quote Originally Posted by sleekcrafter View Post
    So what should you expect to find in your fuel filter? Was not running so hot at the last races, mostly idle issues. Anyway I drained the tanks, flushed the system, and changed fuel filter element. The canister bowl, had a fare amount of sand, carb bowls had a teaspoon of water. I cut the element apart, and found a little more sand, but not what I was expecting. My fuel jugs are clean, I fill 5 gallons at a time, so the whole container goes in. this is the first time in a while, I've had water issues, but the sand is bothering.
    If you ALWAYS fill from a 5 gallon jug, get yourself a real funnel with a filter screen. All the JAZ funnels will accept this screen piece. Even if we a filling with a hand pump from a 55 gal drum, we pump thru this in a funnel.


    If you have typical beach like sand in the carb, your filter is JUNK!. Can it. ANY decent filter will stop 100% of sand.
    The idle is effected more by water in the carb more than any part of the power range because the water surface tension can block the idle restrictor quite easily. There just is enough draw on the circuit to overcome the surface tension of the water.
    If you racing this boat, I personally would even entertain the idea of a water seperator. Just get a good fuel filter, and start running the fuel you put in it with a screened funnel.



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    79 Sanger Picklefork Tittyman's Avatar
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    Default Water

    If you get condensation in your fuel tanks..can you add say pint of alcohol to each tank and the water will burn through the carbs..thanks
    "Bill, if your gonna ride my ass that hard, at least you could pull my hair"....Hillary Clinton

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  6. #4
    Boat Nut sleekcrafter's Avatar
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    No dirt or sand get past the filter assy, yes have been filling from a jug. I will get the jazz funnel and filter asap. Got the bot back together for the races last weekend, with much improvment. Started having a stumble in the third round of eliminations. I will drain the bowls again tonight, and see whats in them, other than fuel. Last night, doudle checked the fuel pressure, was running at 9.5 pounds... yikes. Also found my fuel pump on/off switch is getting intermittent, also need to replace this as well. Still fighting some surge on the hit off the line, this maybe fp related as well. Removing the PV's has helped reduce this to almost non issue,but need it completely gone.

    Just drained all four bowls, no evidents of water...... Moving on the the Dizzy, looks like there is water inside the cap, going to check the advance mechanism, stops and springs, next. Being here in the midwest, and in a drought, seems any time I tow, I get rained on. This may explain the water in the fuel, last month we got hammered on US 20 in northern Iowa.
    Last edited by sleekcrafter; 08-01-2012 at 04:56 PM.
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


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