Can i use a rubber hose opposed to the metal fuel line?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tripleblack · 04-19-2006, 10:40 PM

Just from my fuel pump to the carbuerator i was wondering if i can use a rubber fuel line hose. I just waS wondering if anyone has done this andhow it was. I converted to a rear mount gas tank and i will use a metal line along the frame to the fuel pump. Thanks for the help.

franks72 · 04-19-2006, 11:02 PM

I used aeroquip socketless fittings and hose on my drag car, It was nice stuff and easy to use and NHRA leagle.. comes in blue or black..

**tnblazerk5** · 04-19-2006, 11:03 PM

i would use metal lines from the tank to the pump from the pump to the carb if at all possible

the resion most people dont use the hose is cause they leak and in time spring leaks and leaking gas lines and a hot motor is not a good thing and will burn the truck to the ground

Fred T · 04-19-2006, 11:05 PM

Yes, you can, but there are some hazards/risks involved with using rubber fuel line.

Sealing is a problem when you don't use hose fittings. Just slipping the hose on steel tube is asking for leaks, many times they are not visible. I recommend using double clamps and Hylomar sealant when not using hose fittings.

Rubber hose will move around and wear. It needs standoffs to keep it in place.

Regular inspection for cracks and wear is needed. Should be done at every oil and lube.

I recommend only short runs of rubber fuel line. Bending steel line isn't that difficult, it can be done with a tubular spring bender that costs a couple of bucks. You can buy the line at an auto parts store.

SCOTI · 04-19-2006, 11:25 PM

Yes, it can be used.
No, it's not the best way to run fuel to the carb.

That being said, I ran rubber 3/8" fuel injection grade line from the hard line on the frame to the fuel pump, then around the front of the engine compartment to the drivers side, & then to the carb inlet of my 6cyl. I ran it this way because I was continuously having a problem w/vapor-lock & needed to route the line farther away from the heat of the engine (the 6cyl had it routed over the exhaust manifold, or, the source of my heat).

It was about 5 ~ 6ft of fuel inj grade hose & I replaced it each spring regardless. I considered it cheap insurance against failure. I also ran double clamps on all of the lines.

mbgmike · 04-23-2006, 12:03 AM

Quote:

Originally Posted by SCOTI

Yes, it can be used.
No, it's not the best way to run fuel to the carb.

That being said, I ran rubber 3/8" fuel injection grade line from the hard line on the frame to the fuel pump, then around the front of the engine compartment to the drivers side, & then to the carb inlet of my 6cyl. I ran it this way because I was continuously having a problem w/vapor-lock & needed to route the line farther away from the heat of the engine (the 6cyl had it routed over the exhaust manifold, or, the source of my heat).

It was about 5 ~ 6ft of fuel inj grade hose & I replaced it each spring regardless. I considered it cheap insurance against failure. I also ran double clamps on all of the lines.

I agree ,use the fuel injection hose. Alot of states have gone to oxiginated fuel during the summer and with all the newer additives they can eat up hoses. Also if your fuel pump is older than say nine years it wouldn't be a bad idea to replace it also

The hose is marked SAE30R9

bigjimzlll · 04-20-2006, 12:39 AM

If you plan on racing at a track, the most rubber line you can use is 12"

boundstaffpress · 04-20-2006, 11:21 AM

JUST DON'T DO IT!

Stainless braided line with fittings is ok, but rubber alone is asking for a problem. The risk to cost ratio is way too high. Lost of guys run a small amount of rubber up by the carb so that they can attach in-line fuel filters or make attaching to the carb a little easier.

Rubber deteriorates, rubs through, gets brittle and developes pin holes. Maybe it won't happen this year, but you are INVITING trouble. Maybe major trouble.

What don't you like about steel line from the pump to the carb?

cdowns · 04-20-2006, 12:21 PM

bad idea=rubber fuel lines / good idea==big fire

jhow66 · 04-20-2006, 09:58 PM

What about all that rubber lines back at your fuel tank. Most of it has been there since the truck was new.

rkarr · 04-20-2006, 10:33 PM

Quote:

Originally Posted by jhow66

What about all that rubber lines back at your fuel tank. Most of it has been there since the truck was new.

no heat... and, they leak as well, but they generally aren't too close to an ignition source..
Summit sells 25 foot kits.... cheap....
JMHO.

jhow66 · 04-20-2006, 10:47 PM

Other then the exhaust pipes.

68C15 · 04-20-2006, 10:48 PM

IIRC places like LMC sell metal pre-bent lines to go from pump to Qjet.
I have 3 inches total in my truck. that's from frame to pump and I change it about once a year.

**PICKMUP** · 04-20-2006, 11:29 PM

Rubber is cheap trouble...as stated.
Metal is good, but inverted flare fittings have to be tightened too much and sometimes strip our the soft carb inlet or the nut fitting turn round.

You can't beat SS braided hose with AN fittings. It is strong, flexible, tough, insulated, looks good, easy to add an inline filter, and you don't have to tighten it much.
Edelbrock has some cool fittings that attach to their carbs and are made for braided lines. It works on all engines.

04-19-2006, 10:40 PM	#1
tripleblack short sell Ford stock Join Date: Aug 2005 Location: Houston, Texas Posts: 104	Can i use a rubber hose opposed to the metal fuel line?? Just from my fuel pump to the carbuerator i was wondering if i can use a rubber fuel line hose. I just waS wondering if anyone has done this andhow it was. I converted to a rear mount gas tank and i will use a metal line along the frame to the fuel pump. Thanks for the help.

04-19-2006, 11:02 PM	#2
franks72 Junior Member Join Date: Mar 2005 Location: Wilmington DE Posts: 218	Re: Can i use a rubber hose opposed to the metal fuel line?? I used aeroquip socketless fittings and hose on my drag car, It was nice stuff and easy to use and NHRA leagle.. comes in blue or black..

04-19-2006, 11:03 PM	#3
tnblazerk5 User #12137 Join Date: Apr 2004 Location: kingsport,upper east tenn Posts: 11,598	Re: Can i use a rubber hose opposed to the metal fuel line?? i would use metal lines from the tank to the pump from the pump to the carb if at all possible the resion most people dont use the hose is cause they leak and in time spring leaks and leaking gas lines and a hot motor is not a good thing and will burn the truck to the ground

04-19-2006, 11:05 PM	#4
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Re: Can i use a rubber hose opposed to the metal fuel line?? Yes, you can, but there are some hazards/risks involved with using rubber fuel line. Sealing is a problem when you don't use hose fittings. Just slipping the hose on steel tube is asking for leaks, many times they are not visible. I recommend using double clamps and Hylomar sealant when not using hose fittings. Rubber hose will move around and wear. It needs standoffs to keep it in place. Regular inspection for cracks and wear is needed. Should be done at every oil and lube. I recommend only short runs of rubber fuel line. Bending steel line isn't that difficult, it can be done with a tubular spring bender that costs a couple of bucks. You can buy the line at an auto parts store. __________________ Fred There is no such thing as too much cam...just not enough engine.

04-19-2006, 11:25 PM	#5
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,064	Re: Can i use a rubber hose opposed to the metal fuel line?? Yes, it can be used. No, it's not the best way to run fuel to the carb. That being said, I ran rubber 3/8" fuel injection grade* line* from the hard line on the frame to the fuel pump, then around the front of the engine compartment to the drivers side, & then to the carb inlet of my 6cyl. I ran it this way because I was continuously having a problem w/vapor-lock & needed to route the line farther away from the heat of the engine (the 6cyl had it routed over the exhaust manifold, or, the source of my heat). It was about 5 ~ 6ft of fuel inj grade hose & I replaced it each spring regardless. I considered it cheap insurance against failure. I also ran double clamps on all of the lines. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

04-20-2006, 12:39 AM	#7
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	Re: Can i use a rubber hose opposed to the metal fuel line?? If you plan on racing at a track, the most rubber line you can use is 12" __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

04-20-2006, 11:21 AM	#8
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: Can i use a rubber hose opposed to the metal fuel line?? JUST DON'T DO IT! Stainless braided line with fittings is ok, but rubber alone is asking for a problem. The risk to cost ratio is way too high. Lost of guys run a small amount of rubber up by the carb so that they can attach in-line fuel filters or make attaching to the carb a little easier. Rubber deteriorates, rubs through, gets brittle and developes pin holes. Maybe it won't happen this year, but you are INVITING trouble. Maybe major trouble. What don't you like about steel line from the pump to the carb? __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis Last edited by boundstaffpress; 04-20-2006 at 11:21 AM.

04-20-2006, 12:21 PM	#9
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Can i use a rubber hose opposed to the metal fuel line?? bad idea=rubber fuel lines / good idea==big fire __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-20-2006, 09:58 PM	#10
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Re: Can i use a rubber hose opposed to the metal fuel line?? What about all that rubber lines back at your fuel tank. Most of it has been there since the truck was new. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

04-20-2006, 10:47 PM	#12
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Re: Can i use a rubber hose opposed to the metal fuel line?? Other then the exhaust pipes. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

04-20-2006, 10:48 PM	#13
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: Can i use a rubber hose opposed to the metal fuel line?? IIRC places like LMC sell metal pre-bent lines to go from pump to Qjet. I have 3 inches total in my truck. that's from frame to pump and I change it about once a year. Last edited by 68C15; 04-20-2006 at 10:49 PM.

04-20-2006, 11:29 PM	#14
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,158	Re: Can i use a rubber hose opposed to the metal fuel line?? Rubber is cheap trouble...as stated. Metal is good, but inverted flare fittings have to be tightened too much and sometimes strip our the soft carb inlet or the nut fitting turn round. You can't beat SS braided hose with AN fittings. It is strong, flexible, tough, insulated, looks good, easy to add an inline filter, and you don't have to tighten it much. Edelbrock has some cool fittings that attach to their carbs and are made for braided lines. It works on all engines. Attached Images



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