Replace hard fuel line with rubber?
#1
Replace hard fuel line with rubber?
Doing a 3.4 swap on my rig and broke the fuel high pressure hard line off at the tank. Was thinking I could cut the remaining line past the rusted area and hook up a rubber gas line to the 3.4.
Would I be better off to put on a compression fitting and continue running hard line?
Would a rubber line work/hold? Has anyone replaced their broken hard line with rubber and were there any issues?
Would I be better off to put on a compression fitting and continue running hard line?
Would a rubber line work/hold? Has anyone replaced their broken hard line with rubber and were there any issues?
#2
Registered User
iTrader: (1)
A very interesting idea.....but if your metal line is that rusted and you can afford 15 foot of Fuel injector hose then I say do it. I think real FI hose runs about $4 a foot. Do not use regular gas hose designed for carb vehicles. It will burst in a few weeks.
ps---I did something of the sort with a Samurai I used to have....I lowered the gastank to work on something and decided to cut off the fancy high pressure fitting. I used about 2 feet of FI hose and double clamped it on with special hose clamps designed exactly for this application. Worked great. I did that in about 1995.....I sold it in 1997....Today, I saw that same Sami in the parking lot where I work and had to touch it to talk to it. I bet it still has that 2 foot of FI hose there.
ps---I did something of the sort with a Samurai I used to have....I lowered the gastank to work on something and decided to cut off the fancy high pressure fitting. I used about 2 feet of FI hose and double clamped it on with special hose clamps designed exactly for this application. Worked great. I did that in about 1995.....I sold it in 1997....Today, I saw that same Sami in the parking lot where I work and had to touch it to talk to it. I bet it still has that 2 foot of FI hose there.
Last edited by ZUK; 11-04-2011 at 08:16 PM.
#3
X2 on what Zuk said!
I installed a BMW anti drainback valve when I had my 97 Cherokee and had to use FI hose, and yes it is expensive, I thought I only need a foot, but bought 2 feet and glad I did, I didn't messure it right, and double clamped both ends and the guy who bought it is still driving it and no problems 7 years later...Trick is to make sure all 4 clamps are tight but not too tight, damage outer part of the hose makes it weaker I was told on jeep forum...
I installed a BMW anti drainback valve when I had my 97 Cherokee and had to use FI hose, and yes it is expensive, I thought I only need a foot, but bought 2 feet and glad I did, I didn't messure it right, and double clamped both ends and the guy who bought it is still driving it and no problems 7 years later...Trick is to make sure all 4 clamps are tight but not too tight, damage outer part of the hose makes it weaker I was told on jeep forum...
#4
Registered User
Yep, I did it on an old FI subaru of mine. There's about 3' of exposed hardline in the back, and the return one rusted out on me. So I cut it off at both ends, and slipped some rubber FI hose on there, and clamped it down. Done! That was about 6 or 7 years ago, and it still gets occasional use without any trouble.
If it were the high-pressure line, I'd probably get a compression-to-hose barb adapter, but the return side should be fine without the barb.
And yes, FI hose, and there is such a thing as too tight with a hose-clamp.
If it were the high-pressure line, I'd probably get a compression-to-hose barb adapter, but the return side should be fine without the barb.
And yes, FI hose, and there is such a thing as too tight with a hose-clamp.
#5
Registered User
iTrader: (1)
Yup, x4 on what Zuk said. I did it on my 88 4Runner at the pickup on the tank when the hard line near the tank developed a pin hole. I checked the other parts of the line and it was getting pretty rusty. So I cut it all out and ran about 8 feet or so of fuel injection line from NAPA (or....pick your brand of poison) and used the fuel injection hose clamps also. Doubled clamped them as Zuk did. I also covered the hose in cable loom to protect it from chafing and cabled tied it to the underside of the truck. I can't remember the size but it was a tight fit over the original steel fuel line. I also can't remember if it was the feed line or the return. I could check when I get a chance. My cousin also did it in his 90 4Runner also with no problems. Like numbchux said you could get a compression fitting with the barb adapter on it if it makes you feel better. But you'd probably be set with just the hose to a solid section of hard line. Good luck.
#6
Registered User
iTrader: (1)
Doing a 3.4 swap on my rig and broke the fuel high pressure hard line off at the tank. Was thinking I could cut the remaining line past the rusted area and hook up a rubber gas line to the 3.4.
Would I be better off to put on a compression fitting and continue running hard line?
Would a rubber line work/hold? Has anyone replaced their broken hard line with rubber and were there any issues?
Would I be better off to put on a compression fitting and continue running hard line?
Would a rubber line work/hold? Has anyone replaced their broken hard line with rubber and were there any issues?
These came from Autozone...I'm sure there are better quality looking clamps out there also but these were right around the corner from me.
Fuel injection clamps apply a more even pressure all the way around the hose.
Last edited by ZUK; 11-13-2011 at 11:28 AM.
Thread
Thread Starter
Forum
Replies
Last Post
Peteyg39@hotmail.com
Newbie Tech Section
1
06-26-2015 08:15 AM
dirtrider0129
Buying & Selling Advice - Feeler/Gauging Interest
10
06-24-2015 12:24 PM