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Re: Check your fuel lines (brand x ) [Re: pittsburghracer] #2646001
04/17/19 11:25 AM
04/17/19 11:25 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
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Joined: Jan 2003
Posts: 27,421
Balt. Md
I have used aluminum and never had a problem. But I never flare and hook aluminum line to any type of AN or any hard fittings. I have put small flares on it and then hooked it to braided fuel line or rubber fuel line over the years and use fuel line clamps. I have seen using hard fittings on aluminum line can cause the line to crack near the fittings. Ron

Re: Check your fuel lines (brand x ) [Re: 383man] #2646006
04/17/19 11:42 AM
04/17/19 11:42 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
In the OP of that car.. it did not burst.. if its alum line the builder failed
to put enough clamps on it.. alum line shouldnt have movement or
vibration on it... if it did leak it was due to a crack in the line and/or
a crack at a fitting(where it was flared.. a line that has a double flair
is more susceptible to cracking right where the flare folds back on
itself)
wave

Re: Check your fuel lines (brand x ) [Re: MR_P_BODY] #2646168
04/17/19 06:44 PM
04/17/19 06:44 PM
Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
sgcuda Offline
master
sgcuda  Offline
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Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
I've run flared aluminum lines for years with no problems. As stated before, support with clamps is critical, but there is also a reinforcement collar that goes on them right behind the flare to keep the vibration off of the flared end itself. How many people actually use them? Pump and regulator must be fixed, meaning, not swinging on the end of a piece of angle bracket. Lines should be supported 6" from the fittings, not 6 feet away.

Re: Check your fuel lines (brand x ) [Re: sgcuda] #2646172
04/17/19 06:55 PM
04/17/19 06:55 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Posts: 52,972
Romeo MI
Originally Posted by sgcuda
I've run flared aluminum lines for years with no problems. As stated before, support with clamps is critical, but there is also a reinforcement collar that goes on them right behind the flare to keep the vibration off of the flared end itself. How many people actually use them? Pump and regulator must be fixed, meaning, not swinging on the end of a piece of angle bracket. Lines should be supported 6" from the fittings, not 6 feet away.


For the 1 1/2 years that I did run alum line I did use the collors
wave

Re: Check your fuel lines (brand x ) [Re: MR_P_BODY] #2646203
04/17/19 07:53 PM
04/17/19 07:53 PM
Joined: Jan 2003
Posts: 2,360
PA
7
70HemiGTX Offline
top fuel
70HemiGTX  Offline
top fuel
7

Joined: Jan 2003
Posts: 2,360
PA
I have aluminum fuel line on my Dart. I have lots of mounting clamps (rubber insulated). Also where I connected my AN fittings I used the AN compression fittings that have a rubber bushing for sealing. I didn't flare any ends. Although I never gave any thought to flaring making a stress area prone to cracking, but it makes sense. I just wonder how long the rubber liner of the braided lines holds up to the gas??? How long do you run yours until you replace it?

Re: Check your fuel lines (brand x ) [Re: 70HemiGTX] #2646246
04/17/19 10:01 PM
04/17/19 10:01 PM
Joined: Mar 2003
Posts: 1,417
Martinsville, IN
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cdwmotorsports Offline
pro stock
cdwmotorsports  Offline
pro stock
C

Joined: Mar 2003
Posts: 1,417
Martinsville, IN
Originally Posted by 70HemiGTX
I have aluminum fuel line on my Dart. I have lots of mounting clamps (rubber insulated). Also where I connected my AN fittings I used the AN compression fittings that have a rubber bushing for sealing. I didn't flare any ends. Although I never gave any thought to flaring making a stress area prone to cracking, but it makes sense. I just wonder how long the rubber liner of the braided lines holds up to the gas??? How long do you run yours until you replace it?


There is no visible damage in my 20 year old lines. I sold most of the old stuff on ebay to offset the cost of the new stuff.


eBay-cdwmotorsports
Re: Check your fuel lines (brand x ) [Re: cdwmotorsports] #2646261
04/17/19 10:36 PM
04/17/19 10:36 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
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Joined: Aug 2003
Posts: 43,007
Bend,OR USA
I've made and used a lot of soft drawn aluminum tubing for gas lines on my drag cars with no failures, yet. shruggy
I bought a Parker Hannafin,( I think the last name was correct when I bought it from my local hydraulic shop years ago) AN flaring tool kit with the proper 37 degree angle flaring tool, I do use the proper AN size aluminum sleeve and nut(female fitting) on the ends also with a single flare ONLY work
I may have tried stainless once, JUST ONCE shruggy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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