Tips on replacing fuel line to carb
#1

Have to change out the old fuel feed line that goes into my 4150 Holley since it used a hose barb connection to a rubber hose and I will be replacing that with solid fuel line to -6AN connection. Would
like to limit the amout of fuel that spills onto the intake manifold (from the carb inlets) when I do this since it's inside my garage and it's winter so all the windows are closed. What does everyone else use for mopping up the gas
that leaks out - paper towels, shops rags, etc. Is there a way to do this and limit the amount of gas that dribbles out of the carb inputs?
like to limit the amout of fuel that spills onto the intake manifold (from the carb inlets) when I do this since it's inside my garage and it's winter so all the windows are closed. What does everyone else use for mopping up the gas
that leaks out - paper towels, shops rags, etc. Is there a way to do this and limit the amount of gas that dribbles out of the carb inputs?
#3
CF Senior Member



NO. No way to limit the fuel that will obviously come out.
And doing this in an environment that is NOT the best for having fuel vapors lingering....is rather.....foolish. YES...paper towels or whatever you want to use that is absorbent.
. But I KNOW I would roll the car outside so I would not have to deal with vapors or OPEN up the garage door and just deal with the cold.
DUB
And doing this in an environment that is NOT the best for having fuel vapors lingering....is rather.....foolish. YES...paper towels or whatever you want to use that is absorbent.
. But I KNOW I would roll the car outside so I would not have to deal with vapors or OPEN up the garage door and just deal with the cold.
DUB
#5

NO. No way to limit the fuel that will obviously come out.
And doing this in an environment that is NOT the best for having fuel vapors lingering....is rather.....foolish. YES...paper towels or whatever you want to use that is absorbent.
. But I KNOW I would roll the car outside so I would not have to deal with vapors or OPEN up the garage door and just deal with the cold.
DUB
And doing this in an environment that is NOT the best for having fuel vapors lingering....is rather.....foolish. YES...paper towels or whatever you want to use that is absorbent.
. But I KNOW I would roll the car outside so I would not have to deal with vapors or OPEN up the garage door and just deal with the cold.
DUB
#6

Well I guess I might have to change out the rubber fuel line to the fuel pump as well depending on the condition of the rubber line this summer, and for that I'll roll the car out.
#7
CF Senior Member


Member Since: Oct 2007
Location: Austin Texas
Posts: 3,661
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Corvette of the Year Winner 2017
2016 C3 of Year Finalist


No Rubber... unless you like Barbecued Corvette.
I have found the plastic tips that come with tubes of silicone sealant that you screw on, the tapered kind.
you normally cut the end off of to use., ...keep that tip with uncut end.
It makes a great universal size plug, perfect for plugging various size hoses and metal tubes.
I have found the plastic tips that come with tubes of silicone sealant that you screw on, the tapered kind.
you normally cut the end off of to use., ...keep that tip with uncut end.
It makes a great universal size plug, perfect for plugging various size hoses and metal tubes.
Last edited by 69Vett; 02-13-2019 at 03:00 PM.
The Following User Says Thank You to 69Vett For This Useful Post:
Redvette2 (02-15-2019)
#8
CF Senior Member



The rubber hose he was referring to is the rubber hose for the fuel line on the frame to the fuel pump...like he wrote. You know the ones that are molded in an 'S' shape.
Depending on how much of the fuel that has leaked back down to the fuel pump. This Holley has a dual line set-up and that line can hold some fuel.
It all depends on how this new line is being attached and how much is being taken off to install the new set-up.
Either way...closed in areas with fuel vapors is a bad combination.
DUB
Depending on how much of the fuel that has leaked back down to the fuel pump. This Holley has a dual line set-up and that line can hold some fuel.
It all depends on how this new line is being attached and how much is being taken off to install the new set-up.
Either way...closed in areas with fuel vapors is a bad combination.
DUB
#9

I took the advise and opened the garage door and both windows. I then placed wadded up paper towels under the existing dual line inlet
and removed it from the carb. Didn't have as much gas leakage as I thought, and I quickly installed the JEGS Holley dual line connectors
to the carb. Took the soaked paper towels out to the pickup bed to sit outside. Within an hour the gas vapors were gone and everything
was back to normal. Really nice that my fuel line inlet from the fuel pump to the carb is now all metal. I'll post some pics soon...
and removed it from the carb. Didn't have as much gas leakage as I thought, and I quickly installed the JEGS Holley dual line connectors
to the carb. Took the soaked paper towels out to the pickup bed to sit outside. Within an hour the gas vapors were gone and everything
was back to normal. Really nice that my fuel line inlet from the fuel pump to the carb is now all metal. I'll post some pics soon...
#10

I took the advise and opened the garage door and both windows. I then placed wadded up paper towels under the existing dual line inlet
and removed it from the carb. Didn't have as much gas leakage as I thought, and I quickly installed the JEGS Holley dual line connectors
to the carb. Took the soaked paper towels out to the pickup bed to sit outside. Within an hour the gas vapors were gone and everything
was back to normal. Really nice that my fuel line inlet from the fuel pump to the carb is now all metal. I'll post some pics soon...
and removed it from the carb. Didn't have as much gas leakage as I thought, and I quickly installed the JEGS Holley dual line connectors
to the carb. Took the soaked paper towels out to the pickup bed to sit outside. Within an hour the gas vapors were gone and everything
was back to normal. Really nice that my fuel line inlet from the fuel pump to the carb is now all metal. I'll post some pics soon...
#11
CF Senior Member


Member Since: Nov 2013
Location: 1968 327 4S in Southern California
Posts: 191
Thanked 19 Times
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No Rubber... unless you like Barbecued Corvette.
I have found the plastic tips that come with tubes of silicone sealant that you screw on, the tapered kind.
you normally cut the end off of to use., ...keep that tip with uncut end.
It makes a great universal size plug, perfect for plugging various size hoses and metal tubes.
I have found the plastic tips that come with tubes of silicone sealant that you screw on, the tapered kind.
you normally cut the end off of to use., ...keep that tip with uncut end.
It makes a great universal size plug, perfect for plugging various size hoses and metal tubes.
Thanks,
Redvette2
#12

If you haven't started the car yet, be aware that the new fittings from the dual inlet line to the fuel bowl typically leak. I've found you usually have to work them in by tightening and loosening a few times. It's more aggravating with the lines that have tubing flare connections, but the AN fittings to the fuel bowl leak as well. Just something to be aware of.
you might have to loosen and then re-tighten the carb inlets if they leak?
