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Old 04-01-2012, 10:12 PM
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fuel filter size?

Ok, I noticed small particles getting past my 40 micron fuel filter just before it goes into the carb. On the back side I just replaced the gas tank's sending unit and filter. not sure what size micron filter is in the tank! Would you guys recommend a 10 micron just before the carb or is that to small? Basically I have the stock filter in the tank before the Mechanical fuel pump and then after the fuel pump before the carb I have a 40 micron filter. Very fine particles still getting by!

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Old 04-02-2012, 12:54 AM
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You must have very good eyes, how do you can actually see these "very fine particles"?
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Old 04-02-2012, 08:37 AM
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Quote:
Originally Posted by 327NUT
You must have very good eyes, how do you can actually see these "very fine particles"?
I have a clear fuel filter on the motor and the same small particles "seen" in the filter are the same particles laying in the float bowl! Fine or very fine
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Old 04-02-2012, 08:56 AM
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my first question is
was this all new before you started?
just want to make sure that its not left-over goodies
maybe clean out system and try again to see if it returns?


I thought 40 was the carb standard
and 10 is F.I. standard

what brand/style filter do you have?
maybe you can put a different filter in the housing you already own
there are lots of choices depending on brand/style
35, 25,15,10
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Old 04-02-2012, 08:58 AM
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Quote:
Originally Posted by 327NUT
You must have very good eyes, how do you can actually see these "very fine particles"?
they would have to be, I think a micron, is 1 millionth of a meter
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Old 04-02-2012, 11:59 AM
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Quote:
Originally Posted by matts37chev
my first question is
was this all new before you started?
just want to make sure that its not left-over goodies
maybe clean out system and try again to see if it returns?


I thought 40 was the carb standard
and 10 is F.I. standard

what brand/style filter do you have?
maybe you can put a different filter in the housing you already own
there are lots of choices depending on brand/style
35, 25,15,10
I have a russell brand filter 40 micron in line filter at the carb. It is the old system, but I pulled the tank and inspected and cleaned it really well when I replaced the sending unit and filter! I guess it's possible there was a little that could have been missed being there's limited access in the tank!
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Old 04-02-2012, 12:32 PM
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Quote:
Originally Posted by matts37chev
they would have to be, I think a micron, is 1 millionth of a meter
Simple, if u take 1 micron it would be hard to see, but let's say u take a 30 micron and group it together with a lot more 30 microns there u go! An accumulation of microns .
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