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I've seen tons of posts on the need to replace the plastic fuel quick disconnect, but mine, altought plastic, are simply the usual unions. Any issues with those
 

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I've seen tons of posts on the need to replace the plastic fuel quick disconnect, but mine, altought plastic, are simply the usual unions. Any issues with those
The plastic unions are not an issue. The plastic male end of the QD's tends to crack and then leak unlike those unions you have pictured. I haven't heard of any issue with what you have. I don't have a picture of the plastic QD's but have marked where they crack on the metal ones sold by Beamer Boneyard.
 

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I've seen tons of posts on the need to replace the plastic fuel quick disconnect, but mine, altought plastic, are simply the usual unions. Any issues with those
I have heard no issues with these as long as you don’t mind the inconvenience. Not sure the purpose of these. Might as well run one piece of fuel hose from tank to fuel rail if you aren’t going to have a QD. Then you have no parts to fail.
 
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I have heard no issues with these as long as you don’t mind the inconvenience. Not sure the purpose of these. Might as well run one piece of fuel hose from tank to fuel rail if you aren’t going to have a QD. Then you have no parts to fail.
John has line clamps that squeeze the hose so fuel doesn't come out while you separate those unions. Slightly more trouble, I agree but functional in not having to drain the tank to remove it. The QD's are definitely a better solution for this application as things like the air filter are under the tank so removal is required periodically.
 

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I didn't even try to clamp the hoses before disconnecting and I didn't loose that much fuel.... until I had to plug it again to get another container oh so much joy!!!
But really, the quick disconnect would be easier, but at 80$ ? and then, add another 40-ish to ship to Canada.
So unless they were problematic, I think I can prefer to afford a little bit of spilled gaz.
 

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I've seen tons of posts on the need to replace the plastic fuel quick disconnect, but mine, altough plastic, are simply the usual unions. Any issues with those
My 2000 LT did not come with the fuel line disconnects. I did have one of those plastic coupling crack and create a fuel leak which took me forever to track down. It only leaked at certain times. I did pull those out and installed the "brass" fuel line disconnects. Here is the thread on my issue and where the leak was coming from:


https://www.bmwlt.com/forums/k1200lt/51409-mystery-fuel-leak.html
 

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John has line clamps that squeeze the hose so fuel doesn't come out while you separate those unions. Slightly more trouble, I agree but functional in not having to drain the tank to remove it. The QD's are definitely a better solution for this application as things like the air filter are under the tank so removal is required periodically.
Talk to a few auto engineers and ask them where a common failure point is on a fuel hose. :smile:

Yes, the LT is a goofy design when it comes to air filter maintenance or electrics access so being able to remove the tank easily is a nice convenience. That is they I had no qualms spending $80 for good QDs. I have used mine a dozen or more times over the years so I am down to probably $5 per use or so and that seems like a good value to me. :grin:
 

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My 05 came to me with stock quick disconnects that worked just fine. The bike had 50k on it so as a precaution I replaced them with the fancy, high dollar,racing,guaranteed to make your bike faster,never have to worry about them again units.(not from Beemer Boneyard) They were a bust for me. By the time I could get them together or apart my garage had the smell and look of a fueling station. I went with a couple of brass barbs and hose clamps. I figure for the number of times I'm going to be that deep into the bike that it's not going to be that big of a deal to clamp the hose and then plug the end to prevent loss of gas. Plus to carry a spare is $ instead of $$$.
 

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Talk to a few auto engineers and ask them where a common failure point is on a fuel hose. :smile:

Yes, the LT is a goofy design when it comes to air filter maintenance or electrics access so being able to remove the tank easily is a nice convenience. That is they I had no qualms spending $80 for good QDs. I have used mine a dozen or more times over the years so I am down to probably $5 per use or so and that seems like a good value to me. :grin:
I got the JiffyTite at your recommendation and am not sorry. I did not want to be carrying around a bag of O-rings other than to give away to others ;)
 

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I got the JiffyTite at your recommendation and am not sorry. I did not want to be carrying around a bag of O-rings other than to give away to others ;)
160,000 miles ago I installed the o-ring type QD on my 2004 LT & have not had to replace any o-rings yet. Like any o-ring it needs a little lube each time you click it back together.

I like sticking with the stock type QD because I can reuse the plastic QD to make a fuel tank drain line, fuel pressure gauge setup & made long enough fuel lines so I can run a LT with the fuel tank off. I have several sets of the plastic QD's in a drawer.
 

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If any one does use the brass barb connectors I would at least polish the sharp edge off of the barb so as not to tear the hose when it is disconnected. I use a cotter pin puller & a heat gun before I remove the barb end. Once the hose is warm the cotter pin puller will go in between the barb & hose all the way around to release the barb.
 

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I like sticking with the stock type QD because I can reuse the plastic QD to make a fuel tank drain line, fuel pressure gauge setup & made long enough fuel lines so I can run a LT with the fuel tank off. I have several sets of the plastic QD's in a drawer.
Fantastic ideas on the extra uses for the plastic QD. So the plastic ones fit into the metal ones?
 

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Fantastic ideas on the extra uses for the plastic QD. So the plastic ones fit into the metal ones?
If you use the chrome plated brass connectors from Beemerboneyard they are made from the same company that makes the plastic OEM BMW connectors & they are interchangeable with each other.
 

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Discussion Starter #14

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I replaced the two fuel Qd's with aluminum fuel line cut pieces from Summit Racing. You need too take a longer length - e.g. 8" and use a tube bender to get a nice radius for your pieces. Then use Summit als sells "ideal" high pressure fuel clamps...don't use the ones from the auto store.
Geo
 
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