The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Oconner on August 24, 2015, 05:45:03 PM
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Dumb question # 4,564,892: I want to put an inline filter on the fuel line. If I do it will not be vertical it will be horizontal. Is that OK?
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It'll be just fine .
The filters on my r65's are all mostly horizontal .
What kind of filter are you planning on using ???
I've been using these the last 12 years .
http://www.itw-fastex-cva.com/images/stories/data-shts/visufilter/8437-00-9909.PDF
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Thanks Bob, mine is like this. Went to an Airhead Tech day an almost everyone had one like this.
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Thanks Bob, mine is like this. Went to an Airhead Tech day an almost everyone had one like this.
I use these on all three of my Airheads. You may find that sanding down the o.d. of the barbed ends permits an easier fit to the fuel lines.
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Dumb question # 4,564,892: I want to put an inline filter on the fuel line. If I do it will not be vertical it will be horizontal. Is that OK?
OK my question is why do you think you need a filter in the first place? If the mesh screen that should cover your tap inlerts is still in place then that mesh will stop dead anything capable of causing a problem. Adding an as additional filter adds nothing.
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Adding an as additional filter adds nothing.
I get all warm and fuzzy when I can see the fuel gurgling toward my lil carbies after turning on the petcock......... :)
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I've never fitted an external filter because I think they look ugly and spoil the original look of the bike. If I thought the stock filter was inadequate Id try and improve it somehow by having a filter over the straws in the tank and another one inside the fuel tap union.
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I added an additional filter on my '81 R65, no filter screen over the tubes in the tank .
It has the filter in the fuel tap, but I was always getting fine sediment and a few globs of water in the carb bowls when I removed them .
After adding the extra filter, no sediment or water in the carb bowls .
It also helped out on my '82 LS, I purchased fuel line at a local auto parts store, it turned out, that the ' fuel ' line was vacuum line that was mis- identified, started seeing black sediment in the filter, removed it and found it was coming apart from the inside .
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No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.
I can occasionally spot a speck of debris in the clear body of the filters. Remove the filter, backwash with a little fuel and refit. After years of use, the Bing 32mm float needles and bowls remain tidy.
Add your filter, Oconner. [smiley=thumbsup.gif]
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Will Do!!!
Thanks guys!
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It also helped out on my '82 LS, I purchased fuel line at a local auto parts store, it turned out, that the ' fuel ' line was vacuum line that was mis- identified, started seeing black sediment in the filter, removed it and found it was coming apart from the inside .
Even with a good in tank filter, fuel hoses will still break down on the inside. Ethanol does a number on older hoses and the cloth covered stuff BMW sells.
The absolute best setup would be to have a fuel filter just before or in each carb fuel barb, so as to catch any rubber bits that break away from the fuel hoses downstream of the tank screen.
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No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.
Someone stole your mesh filter Monte!
Motobins can supply you with a new one for GPB2.
Motobins Part No. 98563
BMW Part No. 16 12 1 233 368
Picture below.....
The post 85 taps (which fit perfectly) have a different design mesh sheath which is even better. Motobins were sellign the sheath type mesh seperately, but it no longer seems to be listed.
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No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.
Someone stole your mesh filter Monte.
Good thing I have a most excellent in-line filter. [smiley=thumbsup.gif]
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No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.
Someone stole your mesh filter Monte.
Good thing I have a most excellent in-line filter. [smiley=thumbsup.gif]
Alternatively, you have an ugly addition that introduces three (3) new potential failure points:-
1/. the inlet spigot
2/. the device itself
3/ the outlet spigot.
Meanwhile, back at "Pedants-r-us". sometime next decade I must clean my fuel tank mesh filter.
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(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fwww.bmwr65.org%2Fhtdocs%2Fyabbfiles%2FAttachments%2FBMW_Filter_Mesh.jpg&hash=1eeee078141435bff12ac27777524fa3f38485cd)
Motobins Part No. 98563
BMW Part No. 16 12 1 233 368
That's the filter I have. I tidied up the bottom end to stop it fraying by dipping it in solder.
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Germa fuel taps did not come with mesh screens from the factory, at least on the '81 model year bikes, Karcomas did .
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Germa fuel taps did not come with mesh screens from the factory, at least on the '81 model year bikes, Karcomas did .
There you go. '81 and '83 R65s.
TWO inline filters on the twin petcock R100S. [smiley=thumbsup.gif]
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Germa petcock do have a screen, but it's not in the tank, it's in the fuel barb. Not the best design, as it lets the petcock clog up with debris
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Germa petcock do have a screen, but it's not in the tank, it's in the fuel barb. Not the best design, as it lets the petcock clog up with debris
There you go.