Tech Tip: External fuel filter

[grog]

You blokes are making this way too hard. Weve explained how to do it. Works for quite a few of us. No improvement really needed, mine works fine.

[Andre]

Your view @grog. I will not use a 30 micron filter nor one with a disc nor a sintered filter element. My "problem" 

[grog]

Andre, your bike, agree do it your way. No point if youre not happy. Post when finished, im always open for ideas.

[Andre]

There are plenty of ideas on the forum. Trouble for me is that there is no solution that suits this picky German. Might have to go for a compromise 

Cleaned both filters and got a slight improvement (1050 vs.950 ml).

[grog]

Andre, if you can find a 10 micron, replaceable filter, 40mm or less in diameter, ill be there. i searched long and hard. i dont agree what whoever said about filter near rail. its filtered wherever. most cars these days have filter in tank, lots of rubber hose used up near motor. filter in tank a silly idea, costs a lot to replace. time to do plus cost of filter. we do it lots at work, some replacements nearly a thous. dollars. jeeps, ford mondeo just 2. old in line worked just as well, 40 bucks.

[Andre]

This isn't a big concern in OEM fuel systems which mostly have hard lines

I haven't cut the original hose, but it is certainly a very hard one. The guys who wrote the article should know what they find in the injectors and it is save to assume that they found rubber in there. They could have kept their mouth shut about it and get more injectors for service in. Maybe they want to not get their own injectors returned under warranty and have a  hassle because of improper filtration.

They have a valid point there IMO. The only filter I can find that can potentially be mounted very close to the rail is the Golan Super Mini. Pics I have seen from the collapsed disc and the small surface area it has don't fit my demands

I tend to just bite the bullet and buy the original filter assembly.

[northern]

5¢ from me:
1. OEM line is plastic - I cut mine.

2. I thin, intank filter is better in our case, course we have non-return fuel pressure regulator. Meaning, with external filter, pressure is regulated before fuel pass filter. This may course more pressure drop on rail (when filter is not fresh anymore), comparing to situation where pressure regulator is after filtration.

@Andre your 950ml is much higher when my 400ml was 🙂

[mlivkovich]

This might be stupid question but I've read vstrom forum and some other topics about fuel filter mod and seen some pics where OEM filter housing is cut and opened. How to close it to maintain fuel pressure? Or am I missing something?

[Andre]

@northern Thank you for these 2 pieces of info. Yes, mine is doing quite alright compared to where your's was. Gives me time to save the dough for the OEM 

@mlivkovich I thought about cutting it open and use plastic welding method (using soldering iron) to close it up. Would have to rig up pressure testing to make sure it is tight.

[Snapey]

This might be stupid question but I've read vstrom forum and some other topics about fuel filter mod and seen some pics where OEM filter housing is cut and opened. How to close it to maintain fuel pressure? Or am I missing something?

Suzuki use a pretty good glue on the filter housing and splitting it on the glue line is near impossible without the plastic breaking. Re-gluing without leaks, again near impossible but even if you can you're still stuck with a filter that will fail.

By all means go for a top quality filter and I can't fault the one I use but in the end what ever one you select it will be better than Mr Suzuki's offering.

[Bielie45]

This may interest some people you can choose your filtration

[Nick]

Could sound a bit daft but when you drill the filter how deep do you drill, just to go through the plastic or deeper in to the filter. Thanks nick.

[northern]

The thickness of plastic to drill through is not more then 4mm. May be 3mm.
Hope this will help.

[northern]

Golan Mini Reusable Filters fuel filter have arrived.
Was searching for AN6 model, but could not find it anywhere. Thought AN4 will be a little bit small. So I choose 5/16 hose model.

Barrel diameter: 34.2mm
Barrel length: 45mm
Total length (including tubes): 75mm
Filtration element diameter: 25.4mm


Golan Products clams this is 10 micron filter. Any idea how to check it?

[northern]

Because I was absolutely not happy with my external filter placement (http://gsx1400owners.org/forum/index.php?topic=590.msg41028#msg41028), I purchase Golan Mini, and today it was installed.
All it was relatively easy, and I'm quite happy with the result. During the winter, I will think about some bracket, but for now it's OK