Compression Fittings
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From: N. E. Arkansas
Compression Fittings I was wondering if you guys use compression fittings on your fuel lines? I'm thinking about getting some 3/8" compression fittings to join about 6" of double bead fuel line with the stock LS1 fuel line attachment point to each end of the stock line in my 76 camaro.
Then I can clip on some nylon fuel line like the LT1 and LS1 engines at the fuel rail and fuel pump.
I can use either the straight style fitting or the style that used a 45 or 37 degree flared fittingl in the line and a threaded cap.
http://www.mcmaster.com/#compression...ttings/=5273q9
Will this hold up to the fuel pressure?
Then I can clip on some nylon fuel line like the LT1 and LS1 engines at the fuel rail and fuel pump.
I can use either the straight style fitting or the style that used a 45 or 37 degree flared fittingl in the line and a threaded cap.
http://www.mcmaster.com/#compression...ttings/=5273q9
Will this hold up to the fuel pressure?
I use them. Some guys don't feel comfortable with them, but I have no leaks in all the years I used them.
The only way to get them off after they have been cinched down is to cut the tube. The ferrule piece gets crimped into the tube making them one piece.
Don't use them for brake lines, but for fuel they work perfectly.
The only way to get them off after they have been cinched down is to cut the tube. The ferrule piece gets crimped into the tube making them one piece.
Don't use them for brake lines, but for fuel they work perfectly.
They are reported to be interchangeable w/ Swagelok. The Swag fittings are reportedly stronger than the tube, in most cases.
The Swag fittings are expensive. I wonder how they compare to these??
The Swag fittings are expensive. I wonder how they compare to these??
I was wondering if you guys use compression fittings on your fuel lines? I'm thinking about getting some 3/8" compression fittings to join about 6" of double bead fuel line with the stock LS1 fuel line attachment point to each end of the stock line in my 76 camaro.
Then I can clip on some nylon fuel line like the LT1 and LS1 engines at the fuel rail and fuel pump.
I can use either the straight style fitting or the style that used a 45 or 37 degree flared fittingl in the line and a threaded cap.
http://www.mcmaster.com/#compression...ttings/=5273q9
Will this hold up to the fuel pressure?
Then I can clip on some nylon fuel line like the LT1 and LS1 engines at the fuel rail and fuel pump.
I can use either the straight style fitting or the style that used a 45 or 37 degree flared fittingl in the line and a threaded cap.
http://www.mcmaster.com/#compression...ttings/=5273q9
Will this hold up to the fuel pressure?
Personally I prefer a double flare for coupling tranny, fuel, and brake lines. Why don't you check around some of the local shops and see if anybody has the flaring tool to put that bead on the end of you line. I have one, but your a little far for me to do it, unless its a short piece and you could mail it to me to do. My local NAPA does it.
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From: N. E. Arkansas
Personally I prefer a double flare for coupling tranny, fuel, and brake lines. Why don't you check around some of the local shops and see if anybody has the flaring tool to put that bead on the end of you line. I have one, but your a little far for me to do it, unless its a short piece and you could mail it to me to do. My local NAPA does it.
Joined: Sep 2004
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From: Downers Grove, IL
I used both compression fittings and double flared joints in my fuel lines. No problems with either, and either one is sufficient to handle that kinda pressure.
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The nylon fitting in the pic is a dorman fitting, they are nice in that it makes for easy installation\removal in addition to easy routing with the nylon line.. I used a flaring kit and dorman install tool in this thread..
https://ls1tech.com/forums/conversio...ilter-reg.html
I was going to go a different route when my nieghbor suggested I buy some nylon line and ends as he has used the Dorman kit to repair fuel lines and route new ones several times without issues.
https://ls1tech.com/forums/conversio...ilter-reg.html
I was going to go a different route when my nieghbor suggested I buy some nylon line and ends as he has used the Dorman kit to repair fuel lines and route new ones several times without issues.
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My entire fuel system consists of compression fittings from the sending unit all the way up to the rails. I used Russell fittings and they hold up great; I am very pleased with how they look and the quality.
Maybe it's just me, but I tend to stay away from the compression fittings with brass (or copper?) ferrules when using steel tubing. I want the ferrule to be at least as strong as the tube, and brass is obviously weaker than steel.
Swagelok makes really good stuff though. I trust that fitting not to fail and shoot fuel all over my engine.
I used a stainless Swagelok 3/8" tube union and it worked great. My first choice is flaring the tubing and using an AN fitting, but I would use the Swagelok fitting again in a second if flaring would be too much of a pain.
Maybe it's just me, but I tend to stay away from the compression fittings with brass (or copper?) ferrules when using steel tubing. I want the ferrule to be at least as strong as the tube, and brass is obviously weaker than steel.
Swagelok makes really good stuff though. I trust that fitting not to fail and shoot fuel all over my engine.
Maybe it's just me, but I tend to stay away from the compression fittings with brass (or copper?) ferrules when using steel tubing. I want the ferrule to be at least as strong as the tube, and brass is obviously weaker than steel.
Swagelok makes really good stuff though. I trust that fitting not to fail and shoot fuel all over my engine.
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Joined: Nov 2017
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From: S.F. East bay
what particular kind on your power steering line, I'm thinking of doing this myself. .......thx in advance. Opps didn't see how old this was.....thanks and sorry
Last edited by dawgs74; Apr 24, 2018 at 08:32 PM. Reason: Date
TECH Enthusiast
Joined: Nov 2017
Posts: 661
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From: S.F. East bay
that's the route that works for me......and I used a stainless with double ferrule style worked like a charm.....no leaks!!!!! I am a plumber by trade so I am confident in the compression fitting not leaking. ..........holding,now that is what I'm waiting to see!!!.....heading towards the on ramp soon! Lol...
