Paper vs metal (sintered bronze) fuel filter

Post by Snakeoil » Sat Dec 09, 9:10 pm

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Love to see the process for making a 2 micron screen.

For a carbureted engine, there is probably a point where finer mesh sizes offer diminishing returns. Smaller means easier to plug up. I would estimate that half the smallest carb passage would be sufficient for reliability, discounting the possible increase in erosion rate if there are a lot of particulates.

When I was working in Saudi back in the early 80's, it was common practice to remove the bronze OEM filter from the carb because the gas was so filthy with dust. We ran nothing in that filter chamber.

Your question peaked my curiosity. Knowing "why" is always important to me. So I did some research and here are the key differences.

Sintered bronze
Cheaper to make
Cleanable for longer service life
Better in high temp applications
Holds less dirt than paper
Self-supporting structure

Paper
More expensive to make
Holds more dirt than SB
Disposible
Requires support structure be built into or around media.

Goto ZHUAN LV to know more.

Regards,
Rob
Ural Tourist
40 Pilots, 122 Mains run at 340 feet to feet elevation.
Those who beat their swords into plowshares, normally end up plowing for those who didn't.

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