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Author
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Topic: Routing fuel line in tunnel.....is it safe ?
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Pierre
Gearhead Posts: 661
From: Near Paris, France
Registered: Apr 2002
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posted 10-03-2006 03:01 AM
 
In the process of installing a complete new fuel system from tank to carb I have to determine whether to rout the Fuel line(and brake line as well I guess!)through the tunnel (which I beleive was the original location) or near frame rails/under floor panels where it will be protected by subframe connectors. I am leaning toward the second location due to the risks in case of drive shaft failure in high rev situation. What do you guys think ?
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Darryl Eichenlaub
Gearhead Posts: 124
From: Buckley,Wa.
Registered: Dec 2005
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posted 10-03-2006 06:28 AM
I'm with you, running the lines along the frame rail and sub frame connectors is safer than the tunnels. I've seen drivelines let go and tear up tunnels and floor pan. At the very least, I would run a driveline safety loop.------------------
Darryl Eichenlaub
1965 Mustang Coupe restomod 289,c4,body and interior mods.
1956 F-100 460,c6,9" major body mods, on going project.
1967 Mustang Fastback, father/son project 5.0,5spd,9".
1975 F250 4x4 Highboy 390,4spd,35",custom paint.
2002 Mustang v6,5spd, daughters college ride.
2001 Ford Escape, Wifes grocery getter.
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indyphil
Gearhead Posts: 3394
From: Senoia, G.A. USA
Registered: Jul 2002
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posted 10-03-2006 07:18 AM
Pierre
I have a 3/8 stainless line that runs out to the side (up the left side of the car) and goes through the fender into the engine bay through the stock location. I got it from NPD and it said it routed in the original path from the tank. It wasnt cheap - I think about $90 US but I think it was worth it.I dont feel too comfortable about running fuel up the tunnel either.
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bob6364
Gearhead Posts: 447
From: griswold,ct usa MCA#59447
Registered: Dec 2004
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posted 10-03-2006 07:31 AM
Running the lines in the hot tunnel kinda goes against the whole keeping the air/fuel charge cool for performance thing ,don't you think.------------------
Bob
02 Saleen #408
92 Black Vert GT
69 R Code Mach 1
71 coupe 302 99 F-250 Super Duty
2002 Exploder 
http://community.webshots.com/album/214154666mXNhcr [This message has been edited by bob6364 (edited 10-03-2006).]
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68 S-code GT
Gearhead Posts: 3835
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 10-03-2006 08:05 AM
Some time in 67 Ford changed from routing the fuel line through the tunnel to along the rocker.If you get a 68 line it will be 3/8” instead of 5/16” [This message has been edited by 68 S-code GT (edited 10-03-2006).]
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Pierre
Gearhead Posts: 661
From: Near Paris, France
Registered: Apr 2002
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posted 10-03-2006 09:35 AM
Darryl,I have a convertible so there is a plate to keep the driveshaft from hitting the road and ripping the rear axle in the process, a loop would probably be better though Indyphil, That sounds like an excellent idea, not sure where you enter/exit the fenders but if you have any more details I may investigate that: I have bought Russel 3/8" aluminium fuel line and I can bend the thing pretty easily to make it go anywhere Bob, That's one extra good point ! 68 S code, Yes they changed the sending unit diameter(in the tank) as well to 3/8"
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indyphil
Gearhead Posts: 3394
From: Senoia, G.A. USA
Registered: Jul 2002
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posted 10-03-2006 10:32 AM
quote:
Originally posted by 68 S-code GT:
Some time in 67 Ford changed from routing the fuel line through the tunnel to along the rocker.
Thats how mine is - along the rocker. it came in two pieces to help push it through some holes. [This message has been edited by indyphil (edited 10-03-2006).]
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Fastback68
Gearhead Posts: 4511
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 10-03-2006 11:33 AM
[QUOTE}Yes they changed the sending unit diameter(in the tank) as well to 3/8"[/QUOTE]
Didn't that change in 1969?
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mellowyellow
Gearhead Posts: 8198
From: So. Fl.
Registered: Aug 2000
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posted 10-03-2006 12:34 PM
No, '68. Have an NOS 68 sender in tank on my 68 and it is 3/8". Stands to reason that it would be as the tank to fuel pump line(s) are 3/8"
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