Fuel Line Question....
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
Fuel Line Question....
I am going to change my inline fuel filter today from the "suck side" (between gas tank & pump) to the "pressure side (between pump & carb). The metal inline fuel filter I have now gets real hot (can't touch it because it's so hot....it's about 5" from exhaust pipe) and causes vapor lock.
Anyway, the pressure side of the fuel line is a steel braided 3/8" rubber line and have had -0- problems with it. Here's the question...when I cut the line (I have a hose cutter made to cut braided line) and insert the filter, is that not going to work (leak)? Everything I've read about on the forum says use a formed steel line on the pressure side. Running at 6lbs of pressure, will it leak?
Any info will be helpful Thanks!
Anyway, the pressure side of the fuel line is a steel braided 3/8" rubber line and have had -0- problems with it. Here's the question...when I cut the line (I have a hose cutter made to cut braided line) and insert the filter, is that not going to work (leak)? Everything I've read about on the forum says use a formed steel line on the pressure side. Running at 6lbs of pressure, will it leak?
Any info will be helpful Thanks!
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
I know I am going to catch grief for this, but over they decades, I have used ordinary fuel line hose on dozens of cars, and been totally fine, most of the time the GM use of that steel line made it freeze to the flare nut, and that caused most of the carb/filter large nut fittings to come loose and get destroyed.....so rubber line was subbed in there....
today, I would use proper hose clamps and high pressure fuel hose rated to 250 psi, just for extra safety....I had that on my FI car running ~45 psi with no issues, but some time ago I found a hose supply company close by, and they set me up with proper high pressure hose clamps and Aeroquip steel lined hose....
proper clamps are not those worm clamps like I used to use, but a full 360 degree surround with a nut and bolt through the tabs....
obviously the hose has to be routed away from headers....well DUHHHHH
today, I would use proper hose clamps and high pressure fuel hose rated to 250 psi, just for extra safety....I had that on my FI car running ~45 psi with no issues, but some time ago I found a hose supply company close by, and they set me up with proper high pressure hose clamps and Aeroquip steel lined hose....
proper clamps are not those worm clamps like I used to use, but a full 360 degree surround with a nut and bolt through the tabs....
obviously the hose has to be routed away from headers....well DUHHHHH
Tech Contributor
Joined: Aug 1999
Posts: 14,376
Likes: 6,375
From: At my Bar drinking and wrenching in Lafayette Colorado
If you're running steel braided line on the pressure side, why don't you get the correct hose end fittings for the line and use screw-on AN connections with an AN threaded connection filter? That will keep it safe and reliable - skip the hose clamps. Have you ever seen a reliable US-built car with more than 2" of rubber hose and clamps on the pressure side of the system from the factory...? ...There's a good reason for that.
Lars
Lars
Last edited by lars; May 29, 2010 at 10:09 PM.
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
