Quick Disconnects for Fuel Lines - BMW Luxury Touring Community
 
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post #1 of 18 Old Jan 28th, 2009, 12:00 pm Thread Starter
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Question Quick Disconnects for Fuel Lines

I'm getting ready to replace my plastic fuel line quick disconnects with metal ones and was wanting to know for sure what the ID of the fuel line is before purchasing them. I have seen both 5/16" and 3/8" referenced. Thanks for the input.
Rod

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post #2 of 18 Old Jan 28th, 2009, 12:07 pm
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Re: Quick Disconnects for Fuel Lines

5/16 is the size you want!

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post #3 of 18 Old Jan 28th, 2009, 12:37 pm
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Re: Quick Disconnects for Fuel Lines

I recently purchased the male end of the quick disconnect at my BMW dealer. The new design is metal and works with the existing plastic female disconnect. I think I paid about $50 for the pair.

Res ipsa loquitur, sed quid in infernos dicet?

Alan Stuber
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post #4 of 18 Old Jan 28th, 2009, 12:53 pm
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Re: Quick Disconnects for Fuel Lines

Quote:
Originally Posted by astuber
I recently purchased the male end of the quick disconnect at my BMW dealer. The new design is metal and works with the existing plastic female disconnect. I think I paid about $50 for the pair.
I don't mean this as rude, but you have only fixed half the problem. Any plastic is going to fail eventually. You really did yourself a dis-service not "going all the way".

aggdoc do yourself the favor and replace them, both sides, with metal.

Lee
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post #5 of 18 Old Jan 28th, 2009, 12:59 pm
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Re: Quick Disconnects for Fuel Lines

Perhaps you are right, but the only failure that I am aware of is the male end of the disconnect breaking.

Res ipsa loquitur, sed quid in infernos dicet?

Alan Stuber
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post #6 of 18 Old Jan 28th, 2009, 1:29 pm Thread Starter
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Talking Re: Quick Disconnects for Fuel Lines

Lee, not rude to me at all but as you can see if you look at the threads closer Mr. Stuber was the one that only replaced one half of the fittings per fuel line. I plan to replace them all with metal, just wanting to make sure of ID of fuel line before deciding where to order the parts from.

Rod

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post #7 of 18 Old Jan 28th, 2009, 1:54 pm
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Re: Quick Disconnects for Fuel Lines

I ordered two pairs from McMaster for around $50 plus mailing costs.

I recently ordered stainless steel clamps for new disconnects.

Best from Tucson
Bob

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post #8 of 18 Old Jan 28th, 2009, 1:57 pm
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Re: Quick Disconnects for Fuel Lines

This thread has different options for steel disconnects:
http://www.bmwlt.com/forums/showthread.php?t=31646

Bob

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post #9 of 18 Old Jan 28th, 2009, 5:58 pm
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Re: Quick Disconnects for Fuel Lines

I ordered a set of metal QDs from BeemerBoneYard.
Quick shipping.
Came with nice clamps and extra O-rings.

I also got my 12K service kit from them.

I like that business, they seem to be on the ball.

And I think they are listed as supporters of this site.
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post #10 of 18 Old Jan 28th, 2009, 6:27 pm
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Re: Quick Disconnects for Fuel Lines

Quote:
Originally Posted by aggdoc
Lee, not rude to me at all but as you can see if you look at the threads closer Mr. Stuber was the one that only replaced one half of the fittings per fuel line. I plan to replace them all with metal, just wanting to make sure of ID of fuel line before deciding where to order the parts from.

Rod
Of all the threads yes there may have been someone that just did one half, and if I would have read that I would have said the same thing to them.

You do not solve the issue at all. I only had 12000 when I did mine with these.



Not criticizing anyone but plastic is subject to heat cold and I would never run them in such a critical area any longer then I had to. They are crap and even at 12K I felt they were way too brittle even then. They broke all up in the hose but to be fair I was not being gentle.

Plus 1 on Beamer Bone Yard those clamps in that pic are from them and the 12K kit came from them. Pretty fast service too.

The QD are from Racer Parts from here on this forum. They are a needle valve and work well. I used elbows on one end but "straits" are the norm.

Lee
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post #11 of 18 Old Jan 28th, 2009, 6:45 pm
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Re: Quick Disconnects for Fuel Lines

Forgive me for the hijack but can the disconnects be replaced without removing the tank?

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post #12 of 18 Old Jan 28th, 2009, 6:50 pm
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Re: Quick Disconnects for Fuel Lines

I am in the midst of doing some of the major servicing & just did the bike side of the QD's & they are hard to get out from the hose & I don't see how you could do the tank QD's so my answer would be NO you can't without removing the tank.

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post #13 of 18 Old Jan 28th, 2009, 6:59 pm
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Re: Quick Disconnects for Fuel Lines

Absolutely, I didnt have a problem doing mine with the tank on...


Quote:
Originally Posted by ipokebadgers
Forgive me for the hijack but can the disconnects be replaced without removing the tank?

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post #14 of 18 Old Jan 28th, 2009, 7:08 pm
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Re: Quick Disconnects for Fuel Lines

Quote:
Originally Posted by CharlieVT
I ordered a set of metal QDs from BeemerBoneYard.
Quick shipping.
Came with nice clamps and extra O-rings.

I also got my 12K service kit from them.

I like that business, they seem to be on the ball.

And I think they are listed as supporters of this site.
I also bought mine from BeemerBone Yard After I had bought the new steel ones from BMW. The steel ones from BMW when it was running and you wiggled the lines they would leak past the o-rings.

In my opinion the BeemerBone Yard QDs are better quality. Also I didn't have to remove the tank. Use 5/16 fuel injection hose clamps.

Dave Selvig
2004 Black LT
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post #15 of 18 Old Jan 28th, 2009, 8:25 pm
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Re: Quick Disconnects for Fuel Lines

When my QD failed it appeared to me that it was simply a design problem. The male fitting has an o-ring recession molded into it which reduces the original wall thickness and makes it the logical place for failure when stressed. Mine appeared to have been re-connected in such a fashion to cause constant stress on the fitting so it was only a matter of time. While I agree that metal is better than plastic, if you really dislike plastics don't open the hood on any modern passenger car. Most of them are loaded with plastics including the intake manifolds, valve covers, radiators, fuel injectors, COP systems, EVAP systems, etc.


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post #16 of 18 Old Jan 28th, 2009, 10:33 pm
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Re: Quick Disconnects for Fuel Lines

When replacing the QDs, put one male and one female on the two parallel lines; keeps you from getting the lines crossed when you reconnect the lines to the tank.

Hope this helps.
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post #17 of 18 Old Jan 30th, 2009, 1:52 am
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Re: Quick Disconnects for Fuel Lines

Quote:
Originally Posted by wacolt
When replacing the QDs, put one male and one female on the two parallel lines; keeps you from getting the lines crossed when you reconnect the lines to the tank.

Hope this helps.
Curt
That's a great idea. Wish I'd thought of that when I replaced mine. I'll swap'em the next time I strip the tupperware.

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post #18 of 18 Old Jan 30th, 2009, 2:06 am
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Re: Quick Disconnects for Fuel Lines

Quote:
Originally Posted by aggdoc
I'm getting ready to replace my plastic fuel line quick disconnects with metal ones and was wanting to know for sure what the ID of the fuel line is before purchasing them. I have seen both 5/16" and 3/8" referenced. Thanks for the input.
Rod
I purchased mine from this bmwlt vendor. These are (IMO) excellent quality and at a fair price too. I believe the guy is still a member here . Tell them what bike it is for and they will know what you need.


http://www.racerpartswholesale.com/jiftite.htm
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