Fuel lines mounting (an lines)
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Apr 2004
Posts: 8,760
Likes: 0
From: Dark Side of the Moon
I ran my lines in my car (crx) i cant stand the smell, im trying to get someideas on how to run them under the car, does anyone have pics on how they mounted them?
Obviously a crx pic would be key, but any honda would work
TIA
Obviously a crx pic would be key, but any honda would work
TIA
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
if you ran the lines in the car like factory, there shouldn't be a smell, there shouldn't be a smell anyway, that means a leak or an issue, in a factory Honda setup, all connections are outside of the body, it's a continuous length of line from out side of the passenger compartment to outside of the compartment, in the event of a leak it's away from the occupants. The reason they run the lines in the body is first,crash protection, they are inside of the rail area, secondi s corrosion protection, and third, most Honda uni bodies are like a body on frame design flipped inside out, the frame rail sections are mostly on top of the panels, this is to save space and give more room in the car, by putting the seat base below the rails, it also makes it nearly impossible to run the lines outside of the body
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Apr 2004
Posts: 8,760
Likes: 0
From: Dark Side of the Moon
na, crx and efs run the lines inside the car and AN lines vent fumes. I want to move them to the outside, the smell isnt bad just if the car sits.
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
i'm not understanding what you are trying to do? are you replacing fuel lines or something else, nothing should be venting in the car anyway
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Apr 2004
Posts: 8,760
Likes: 0
From: Dark Side of the Moon
ok, an lines, vent fumes, its a common thing, (google it), crx run lines inside the car OEM, i ran my AN lines inside the car, and now want to move them to the underside of my car like eg/dc/ek ect, looking for mounting ideas since AN lines are larger.
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
I know all about AN lines believe me, but what are you trying to do vent the tank? why do you have fuel venting inside of your car?
OP take a picture of what you have done...
Never heard of someone running AN fuel lines inside their car... I have always seen them ran under the car...
Never heard of someone running AN fuel lines inside their car... I have always seen them ran under the car...
Trending Topics

Not sure if this helps, but this is the best pic I have. I ran the fuel feed line in the tunnel and secured them with insulated clamps. The clamps were attached using sheet metal SS screws.
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Apr 2004
Posts: 8,760
Likes: 0
From: Dark Side of the Moon
dude, all earls line allow fuel vapors out, inside the car they accumilate, trust me they are installed correctly, google it, some LS1 guys have problems with evap codes due to this post installing earls lines.
justin this may sound silly, but i was having issues with my an lines smelling like gas even when they were in the engine bay. i switched from the braided hose to regular 5/16 fuel injection hose and the smell went away. i still used the fittings as before, but somehow it didnt smell. a long time ago dave with the 86 si had the same issue and he was the one that told me about using the different hose
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
thats really strange about the lines smelling like gas, it sounds like a fitting not installed correctly those lines should be pressure tight, smelling gas means something isn't holding pressure, how are you installing the ends? also, you should never have braided line with fuel in it, inside of the car, unless you are running a specific purpose drag car. all lines inside the car should be double wall steel,or stainless steel, no aluminum fuel lines in the car eithier. I've been working with AN lines for over 25 years, I also work with aircraft, and I have never heard of a properly done line with fuel vapors coming through it. Remember an AN line is just a high quality rubber line with protective braid n the jacket and specific flare fittings. It shouldn't smell like gas anymore then any other fuel line, you have another issue going on
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
someone isn't installing the ends right, AN line is pressure tight, like any other hose, if you pressurize a line you smell fuel vapor from, and use soapy water like looking for gas leaks, you will probably get bubbles around a hose end. use an air compressor, they can eaisily handle the pressure, if something blows off or hisses there's your leak.
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Apr 2004
Posts: 8,760
Likes: 0
From: Dark Side of the Moon
I understand, but trust me i check the fittings many times. Either way i want to run them under the car like you should anyways, so just looking for tips on how to run it.
I appreciate your opinion, sorry if i sound like a ********.
I appreciate your opinion, sorry if i sound like a ********.
Why not drill a hole in the body and run the lines underneath the car. Just make sure when you drill the hole that you put a rubber grommet around the hole so it doesn't cut through the line.
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Apr 2004
Posts: 8,760
Likes: 0
From: Dark Side of the Moon
On a crx I ran the lines inside, and I guess for legal racing they need to be outside, I'm more or less looking for ideas on how to mount or attach them on an ef since it doesn't have provisions like eg ect
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
you're fine, I'm just trying to help you find the issue, smelling fuel vapor from a line is never normal, another thing to look at, are you running earls lines with aeroquip fittings? technically they are all supposed to meet the same exact specs, but I've heard off small differences between manufacturers causing leaks at the junction between hose and end, you should pressure check all your lines anyway, inside or outside of the car
longest project ever
Joined: Sep 2009
Posts: 3,494
Likes: 2
From: on the south side of dixie, 1986 Accord Hatch
I've got around 50 different lines, going to be really fun checking everything,. when you check, check at full pressure first, then use a regulator and check at different pressures, i've heard of leaks sealing at high pressure but leaking at lower pressure, it's just the way the hose ends work
Well on my car, my downpipe dumps in the front of the car, right in front of the transmission. I'm not sure how much heat makes it's way back through the tunnel. I haven't had any vapor lock issues in the 5+ years that I've had a fuel feed line run through the tunnel.
Just for safety's sake, I would run the fuel lines out side of the cabin.
Just for safety's sake, I would run the fuel lines out side of the cabin.
This is how I ran mine from my cell. I cant find the pic of the lines under the car but they run right were the stock lines went and came up into the engine bay in the stock location as well.






