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Magnetic fuel filter

cranetruck

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Last year I made and installed a magnetic fuel filter to help prevent damage to polished metal to metal seals on the lds465-2 engine.
After only a few hours of operating the engine and mostly at idle/low rpms some metal dust is trapped by the filter.

(Just an update, couldn't find my original post.)
 

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gimpyrobb

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I have to wonder how much of that the filters would catch. I might install something similar after my filters to see what they miss.
 

cranetruck

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I have to wonder how much of that the filters would catch. I might install something similar after my filters to see what they miss.
Beyond good resolution on my scanner, but it's like a fine powder and certainly abrasive to parts like the IP plunger and FDC piston (causing fuel to leak into the crankcase). I didn't want to take any chances with the, to the -2 engine, unique IP/FDC.
2013 0909 magnetic filter catch.jpg
 

Captaincarrier

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When we clean tanks we typically use a 30 micron filter. For fuel polishing we filter down to as fine as 2 microns. For a point of reference, 30 micron is about half the size of a human hair.
 

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We have threads that recommend installing a clear fuel filter between the filter and the IP, so you can see if there's air in your fuel. They say to take the filter element out. I replaced the filter element with 4 high-power magnets, 4 mm x 40 mm alnico rods. (Neodymium magnets start to demagnetize at 180 degrees, and our fuel can approach that temperature on long drives on hot days. Alinco is rated to 300 degrees.)

I got the magnets from guysmagnets.com, and the filter from Amazon.

DSCF2409.jpgDSCF2411.jpg

I'll post updates after running it for a while.
 

cranetruck

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Cleaned the filter again a couple of days ago and the fuel tank is still producing rust particles...
2015 0629 1520 hrs, magnetic fuel filter, DSCN7288.jpg2015 0629 1542 hrs, magnetic fuel filter, front side.jpg

Checked my log and it's about 46 hrs of engine running time since last cleaning.
 
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