Paper vs metal (sintered bronze) fuel filter
Post
by captianworkbench » Fri Dec 08, 11:24 pm
ZHUAN LV supply professional and honest service.
Hey guys and gals, in a thread I posted a little over a year ago I was asking about fuel filters and this related topic kind of wiggled in. I would like to know more about everyone's thoughts on this.
This basically applies to carbed Urals, but I guess could apply to any...
Do you all like to run paper, or the sintered bronze filter elements, and why?
It would seem to me the paper would have the ability to trap finer particles.
What say you?
-CWB
Re: Paper vs metal (sintered bronze) fuel filter
Post
by Snakeoil » Sat Dec 09, 1:13 am
Get the specs for each filter. That will answer your question.
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.
Re: Paper vs metal (sintered bronze) fuel filter
Post
by captianworkbench » Sat Dec 09, 1:34 am
I would agree Snakeoil.
IF one could find the specs on the filter, you could certainly figure out which one had the finest micron rating, and therefore be the "better" filter.
In searching the interwebs I am seeing quite the lack of such information.... finding it on only a few listings.
But, on the other hand, I have a feeling that this may be only part of why some people prefer one style vs the other.
What do you use? Why?
-CWB
Re: Paper vs metal (sintered bronze) fuel filter
Post
by chaos2 » Sat Dec 09, 2:44 am
the nylon mesh filters on the intake tubes are probably sufficient. any additional filter is just icing on the cake. that said I use a couple of the little conical sintered bronze ones cuz the look nice. They're rated 40-60 microns. I think paper filters are about the same.
Past afflictions include limey cars and motorbikes, a K75s, R60/2, R65ls, '12 Ural GU & a Citroen ID-19.
Nowadays a bunch of bicycles and a flat green GU
Re: Paper vs metal (sintered bronze) fuel filter
Post
by hotflash44 » Sat Dec 09, 7:17 am
like Mr snake said, its all about microns.Its the innards that make or break any filter IMHO
gear up asphalt grey, name Seryy Medved ,Air America CIA circa /8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)
Re: Paper vs metal (sintered bronze) fuel filter
Post
by VWK75S » Sat Dec 09, 8:01 am
chaos2 wrote: any additional filter is just icing on the cake.
Like a alcohol filter
John
The Ural's made Maine a much bigger state.
ST 10,000kms
GearUp 170,000kms
Retro 30,000kms
VWK75S 110,000miles
Re: Paper vs metal (sintered bronze) fuel filter
Post
by Lee Pape » Sat Dec 09, 10:14 am
For more sintered filter cartridgeinformation, please contact us. We will provide professional answers.
Years ago when the Dodge Viper first came out the place I worked at made the fuel filter/pressure regulator for them. It had a 2 micron stainless steel screen wrapped around a paper filter.
We may not have it all together,
But, together we have it all.
Tourist "The un-named-one"
Riding and working on Urals since .
Re: Paper vs metal (sintered bronze) fuel filter
Post
by Snakeoil » Sat Dec 09, 9:10 pm
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.
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.
Re: Paper vs metal (sintered bronze) fuel filter
Post
by nj » Sun Dec 10, 11:29 pm
131-261-275_vw_universal_fuel_filter.jpeg
I put one of these at each carb. Had no more problems with contamination causing float valve leakage. Large surface area gives good flow even as contaminants build up. Clear case allows easy monitoring of filter and fuel condition. They are cheap to buy. I replace a pair a year.
Filter.jpg
You do not have the required permissions to view the files attached to this post.
Ron Cichowski
Moto Guzzi V11 EV STOCK
/ Ural Sportsman.
Severely Upgraded, Modified and Remanufactured.
Moto Guzzi 850 T3-FB ALMOST STOCK
Re: Paper vs metal (sintered bronze) fuel filter
Post
by Mikey » Mon Dec 11, 9:58 am
I like how you can see the condition rather than the all black of the efi filters. Is there a throughput rate on filters? Hate to over tax the pump try I g to push through a low flow filter.
Posted via tablet or so please ignore any odd words (autocorrect).
Gear-up Forest fog
Re: Paper vs metal (sintered bronze) fuel filter
Post
by nj » Mon Dec 11, 10:40 am
I'm gravity feed and fuel starvation is never an issue.
Ron Cichowski
Moto Guzzi V11 EV STOCK
/ Ural Sportsman.
Severely Upgraded, Modified and Remanufactured.
Moto Guzzi 850 T3-FB ALMOST STOCK
Re: Paper vs metal (sintered bronze) fuel filter
Post
by rivers » Mon Dec 11, 2:18 pm
No idea which is technically better? I've always preferred the sintered over paper. Microns are microns... I like the sintered w/o fear of the paper coming apart. Don't know if it's a real issue or not? Prolly not.I've run paper filters enclosed in alum canisters on cars and trucks forever, since 71 or so anyway. I "think?" one of the benefits of sintered is you can get the same filtering efficiency in a smaller package. Remember the sintered cone filters that came on automotive carbs where the fuel line connected? They worked well but plugged quickly cause of their size, hence the reason for running an aux canister/paper filter between the tank and fuel pump. On carded Urals I run the conical sintered like Raceways sells but the one's Ron above has shown should work equally well. Yeah "clear" housing is nice for maint sake.
Joe
014 GU
"I'm lost but I'm making good time."
Re: Paper vs metal (sintered bronze) fuel filter
Post
by Mr Wazzock » Mon Dec 11, 8:18 pm
Mikey wrote:I like how you can see the condition rather than the all black of the efi filters. Is there a throughput rate on filters? Hate to over tax the pump try I g to push through a low flow filter.
As was intimated earlier, the EFI pump sucks thru the filter, not pushes.
Problee might get cavitation if was getting blocked I imagine. Replacement interval is 10,000 km I believe.
-
Mike H
Was: Ural cT
Now: Moto Guzzi V7 850 & Velorex sidecar.