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Old 12-05-2012, 07:08 PM   #46
toro618
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Quote:
Originally Posted by Indy Unlimited View Post
Lets not forget where the crap is coming from.
The stock fuel lines and stock fuel pump is a major contributor to the crap in our stock filters.
So you think the oem fuel line is deteriorating internally, and all the crap is getting trapped in the filter?
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Old 12-05-2012, 08:26 PM   #47
vintagerider
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Quote:
Originally Posted by Indy Unlimited View Post
Lets not forget where the crap is coming from.
The stock fuel lines and stock fuel pump is a major contributor to the crap in our stock filters.
My exp is only with the big boxers but this is what I know...
- the crabon evap kanister is the source of much crap in the system, disconnected and vented tank naturally to atmosphere, had to jumper the vacuum ports which is easy.. ++ tank should have neither pressure nor vacuum

-10 micron f.i. rated filter is important, can not just fit any filter that fits

- WIX 33323 is a good 10 micron filter for boxer. Inlet and outlet on same side increases mounting options. Fittings are slightly larger than 5/16" but maybe can use reducing barb or get something similar w/smaller barbs

- do not flush old filter and re-use because injectors cost way more than installing new filter Back-flushing is for emergency only.

- heat soaking by external filter needs to be avoided- will alter fuel/air ratio, install away from heat sorces. On boxer best place is under front frame or under seat or to the rear. There are thermal jackets (loose outer tube) available for fuel hose that also increase abrasion resistance.

- BMW fuel hose, like most oem isn't very good. Check with hose specialist for 10% ethanol compatible hose. Pressure only needs to be 65 psi. Low cost option is black nylon tube. Needs to be soaked in hot water to form bends

- change the pump suction sock every time you open the tank. Universal ones are available cheap at auto stores. Need to have old one with you to match up pump fitting- they just press on.

- avoid using components, hoses, filters, laps that are not f.i.rated a leak-free system is easy to achieve if you use the correct materials and methods

most of the above is general advice that any f.i. shop will give. The pump and plumbing issues are same as with autos

> screw the oem bike manufactures and their $500 unitized assemblies. not making fuel filters readily available is unethical
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Old 12-05-2012, 08:56 PM   #48
JRWooden
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Quote:
Originally Posted by Indy Unlimited View Post
Lets not forget where the crap is coming from.
The stock fuel lines and stock fuel pump is a major contributor to the crap in our stock filters.
Indy:
Yes ... I am afraid you have a point there ...
I really really REALLY ... did not want to add "German Engineering" to my list of fallen heros ...

Sigh .............someone send me a couple of cases of Warsteiner Dunkel to help me forget my pain?

JRWooden screwed with this post 12-05-2012 at 09:01 PM
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Old 12-06-2012, 05:32 AM   #49
ebrabaek
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Quote:
Originally Posted by JRWooden View Post
Indy:
Yes ... I am afraid you have a point there ...
I really really REALLY ... did not want to add "German Engineering" to my list of fallen heros ...

Sigh .............someone send me a couple of cases of Warsteiner Dunkel to help me forget my pain?
So how about making it like an auto system. I mesh screen at the pump pickup...then install one of these filters between the pump and injectors..... I think the pump will handle tiny particles fine, and the filter will stop them prior to the injectors.
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Old 12-06-2012, 05:37 AM   #50
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Originally Posted by ebrabaek View Post
So how about making it like an auto system. I mesh screen at the pump pickup...then install one of these filters between the pump and injectors..... I think the pump will handle tiny particles fine, and the filter will stop them prior to the injectors.
That's exactly how it is now. Only problem is that BMW doesn't sell the elements by themselves, and they are not as easy to replace as an external filter.
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Old 12-06-2012, 06:35 AM   #51
JRWooden
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Not having seen it taken apart I'm unclear on the details ...
When bypassing the internal filter, how are folks running the fuel line from the pump outlet to the part that BMW calls the "feed pipe" (the plastic elbow that gets inserted in the outlet side of the OEM filter and comes out the top of the tank). The feed pipe has an o-ring on its outer diameter that slides INTO the outlet end of the filter right?

Can a piece of hi-pressure tubing just be slipped up over that (internal) end of the elbow and secured with a worm-gear clamp?
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Old 12-06-2012, 08:18 AM   #52
toro618
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CV Products

Another option

http://www.cvproducts.com/Products.a...ch=fuel+filter
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Old 12-06-2012, 09:12 AM   #53
ebrabaek
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Quote:
Originally Posted by LukasM View Post
That's exactly how it is now. Only problem is that BMW doesn't sell the elements by themselves, and they are not as easy to replace as an external filter.
I had that all wrong then... I thought we were discussing a filter on the intake side..... Thanks Lukas.... I'm with it now...
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Old 02-01-2013, 02:17 PM   #54
C5!
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oups I posted in the wrong thread, it should have been in this one

Just installed the new fuel filter. It is a Golan mini with 1/4" barbs. S/S 10 microns.
here installed below the seat


Here the filter with the key for judging the size



and inside:

the filter is S/S and washable



here the Golan link: http://www.golanproducts.com/filters.html

If I would do it again I would buy the Super-mini, it is the same filter in a still smaller housing...




Mini and Super Mini Reusable Filters
Form and function

After success with our first fuel filter, we at GS Performance made a decision to manufacture new fuel filters for the High Performance Motorcycle and Go Kart Industries, and today we have the best billet, stainless steel, washable, reusable and performance fuel filters in those two industries.
Filter Element: Designed and engineered for the aerospace industry, for rugged, high temperatures, and extreme filtration environments, made of pleated, 304 stainless steel, 10 micron (.000392"), 1.000 Diameter. Totaling four square inches of effective filtration area, mini/super mini filter provides a maximum flow of 6 gallons per minute simultaneously with no restriction. Filter elements are washable and reusable indefinitely, cleaned easily with air or soluble rinse.
Bodies: Machined on CNC from 6061 aluminum, chrome plated or clear bright anodize finish.

Specification:






Mini Fuel Filter Part Numbers
60-04AN 4-AN Fittings
60-06AN 6-AN Fittings
60-250C 1/4 Barbed Fittings
60-312C 5/16 Barbed Fittings
60-375C 3/8 Barbed Fittings

Super Mini Fuel Filter Part Numbers
70-250G 1/4 Barbed Fittings
70-312G 5/16 Barbed Fittings






Length: Mini: 1.500" long, not include Barbed Ends.
Super mini: 0.675" long long, not include Barbed Ends
Diameter Mini and Super Mini: 1.375"
Weight: Mini: 1.5 Ounces / Super mini: 1 Ounce
Sizes in barbed: Mini: 0.312" (5/16), 0.375" (3/8)
Super mini: 0.250" (1/4), 0.312 (5/16)
Sizes in AN fittings: Mini only: 4-AN, 6-AN, 8-AN
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Old 02-01-2013, 02:38 PM   #55
JRWooden
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Looks good ... what is rough cost?
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Old 02-01-2013, 03:22 PM   #56
C5!
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Quote:
Originally Posted by JRWooden View Post
Looks good ... what is rough cost?
$56.13, free shipping.
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Old 02-01-2013, 04:51 PM   #57
JRWooden
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Originally Posted by C5! View Post
$56.13, free shipping.

Thanks ... that's "in line" with competitors...........
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Old 02-02-2013, 04:18 PM   #58
rjudge
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Super Mini

I'm having a hard time finding anyone that has the 1/4" barbed super mini in stock. Anyone find a source?
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Old 08-08-2014, 03:48 PM   #59
khpossum
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For those of you have an XC TT tank: I put a simple, cheap small plastic fuel filter between the TT tank and the vent connection on the std tank. The fuel is not pressurized, so any fuel filter will do. I have had this on the XC now for a year and have had no problems. I fill almost all of the time thru the TT tank, so all that fuel gets filtered before it goes to the main tank and the fuel pump.

Because I use the vent connection as the fuel supply from the TT tank the carbon canister is gone as well, that is no longer a potential source of contamination.
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Old 08-21-2014, 06:17 PM   #60
Wrebit
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fuel pump and filter for Canadians

Just got an inline filter for 5$.
8 microns, 1/4 barbed on each side...http://www.inlinefilters.co.uk/filte...etal/fbw-bf833
And got this pump as well, its a napa E8335
SKU080044505600 140$
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