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  1. #1
    Veteran Member
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    Default How good are fuel filters?

    I think a small amount of dirt, posibly the volume of 1 or two inches of pencil led might have washed down the outside of the spout of my diesel jug into the tank on my tractor. I'm running a Massey filter now and am about to replace it with a NAPA filter.
    My question is, on the chance that a tiny bit of dirt got into the tank, will the filter catch it, or should I drain the fuel and try to get any traces of dirt out of the tank?

  2. #2
    Gold Member Katahdin's Avatar
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    Default Re: How good are fuel filters?

    The filter will catch stuff your eye can't see. To give you an idea, the typical final fuel filter catches particles down to 10 microns. The thickness of a human hair is 100 microns. Humans can't see anything smaller than 30 or 40 microns.

  3. #3
    Veteran Member
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    Default Re: How good are fuel filters?

    Thanks, Katahdin. That makes me feel better.

  4. #4
    Epic Contributor Soundguy's Avatar
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    Default Re: How good are fuel filters?

    think MICRONS. you can check your filter(s) rating. some have final rating of like 5m.. some as high as 25....

    25 microns = 0.000984251969 inches

    from wiki:

    the diameter of human hair varies from about 40 microns to 120 microns

    so.. some of the worst fuel filters are filtering particles HALF the width of some of the most fine/lowest diameter, human hairs.

  5. #5
    Veteran Member
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    Default Re: How good are fuel filters?

    Good idea, Soundguy. I'll check it, hopefully the info is on the box.

  6. #6
    Platinum Member spruce Deere's Avatar
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    Default Re: How good are fuel filters?

    Fuel filters are designed to do just that, catch and hold non-fuel items.

    In your case, I would not sweat it much with that amount of dirt.

    If one was really worried about it or had a significant amount of dirt or crud in the tank that needed to get removed witch had happened to me, I found a shop vac, duct tap, a length of copper tubing and a flash light works wonders in a drained tank to suck out the junk.

    I would just run the tractor as usual and keep the spare filter handy just in case it don't make it to the next maintenance routine, But I bet it will
    790 JD W/ 300 loader
    Lots of implements for loader and 3pt
    Can't do it burn'n diesel, is not worth do'n

  7. #7
    Veteran Member
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    Default Re: How good are fuel filters?

    Spruce deere,
    I hadn't thought about a shop vac. As it happens, I also need to clean out the tank on a gasoline powered tractor. Would a shop vac be safe to use in that application?

  8. #8
    Platinum Member spruce Deere's Avatar
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    Default Re: How good are fuel filters?

    With gas, fumes are a BIG issue.

    Electric motor + gas fumes=boom.

    It can be done, but the tank has to be COMPLETELY void of gas fumes and fuel...... Even with to days junk gas
    790 JD W/ 300 loader
    Lots of implements for loader and 3pt
    Can't do it burn'n diesel, is not worth do'n

  9. #9
    Veteran Member
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    Default Re: How good are fuel filters?

    Spruce deere,
    Thanks, I think I'll seek another solution for the tank with gasoline. Being burned to death isn't how I want to go.

  10. #10
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: How good are fuel filters?

    i'd run it. you can always drainthe tank and clean it if it bugs you.

    I've seen worse setting inthe bottom of gas cans.

    heck.. I've cleaned worse out of my own diesl tractor tanks.. and I keep them pretty clean... 'stuff happens'


    soundguy

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