Fuel Lines
#1
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Car: 87' Firebird Formula
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Fuel Lines
Hello all..
To make a long question short, are there any coupler fittings that connect Metric to AN?
I am needing to connect my TBI fuel lines to my Holley fuel pressure regulator. The TBI feed line is 16mm and return line is 14mm. The fittings on the regulator are AN -6. I've checked Earl's and others from Summit and Jegs. All help is appreciated.
To make a long question short, are there any coupler fittings that connect Metric to AN?
I am needing to connect my TBI fuel lines to my Holley fuel pressure regulator. The TBI feed line is 16mm and return line is 14mm. The fittings on the regulator are AN -6. I've checked Earl's and others from Summit and Jegs. All help is appreciated.
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Car: 87' Firebird Formula
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Re: Fuel Lines
If I were to use conversion charts, would that work? Like, 3/8 x 5/8 and 3/8 x 9/16? If these coupler fittings are used with Teflon tape, would this work?
#3
Re: Fuel Lines
1. What's wrong with the existing regulator that doesn't need heroic plumbing to fit properly?
2. Thread tape has NO place anywhere near a fuel or oil system. Teflon-based thread paste, maybe.
3. Don't screw metric threads into somewhere they don't belong.
4. I expect the regulator is pipe-threaded not "AN".
5. "AN" fittings are so rare as to be pretty-much military/aviation-only. If you've got 37-degree taper fittings, they're almost certainly JIC not AN. This doesn't mean much except that JIC is a lower standard than the military-grade AN.
2. Thread tape has NO place anywhere near a fuel or oil system. Teflon-based thread paste, maybe.
3. Don't screw metric threads into somewhere they don't belong.
4. I expect the regulator is pipe-threaded not "AN".
5. "AN" fittings are so rare as to be pretty-much military/aviation-only. If you've got 37-degree taper fittings, they're almost certainly JIC not AN. This doesn't mean much except that JIC is a lower standard than the military-grade AN.
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Car: 87' Firebird Formula
Engine: 350
Transmission: 700r4
Axle/Gears: 3.73
Re: Fuel Lines
1. What's wrong with the existing regulator that doesn't need heroic plumbing to fit properly?
2. Thread tape has NO place anywhere near a fuel or oil system. Teflon-based thread paste, maybe.
3. Don't screw metric threads into somewhere they don't belong.
4. I expect the regulator is pipe-threaded not "AN".
5. "AN" fittings are so rare as to be pretty-much military/aviation-only. If you've got 37-degree taper fittings, they're almost certainly JIC not AN. This doesn't mean much except that JIC is a lower standard than the military-grade AN.
2. Thread tape has NO place anywhere near a fuel or oil system. Teflon-based thread paste, maybe.
3. Don't screw metric threads into somewhere they don't belong.
4. I expect the regulator is pipe-threaded not "AN".
5. "AN" fittings are so rare as to be pretty-much military/aviation-only. If you've got 37-degree taper fittings, they're almost certainly JIC not AN. This doesn't mean much except that JIC is a lower standard than the military-grade AN.
#5
Re: Fuel Lines
*...because not all 37 degree flare fittings meet AN standards. The fittings packaged with the pump almost certainly DO NOT meet "AN" standards, although there's a good chance that they meet JIC standards.
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Re: Fuel Lines
Hello all..
To make a long question short, are there any coupler fittings that connect Metric to AN?
I am needing to connect my TBI fuel lines to my Holley fuel pressure regulator. The TBI feed line is 16mm and return line is 14mm. The fittings on the regulator are AN -6. I've checked Earl's and others from Summit and Jegs. All help is appreciated.
To make a long question short, are there any coupler fittings that connect Metric to AN?
I am needing to connect my TBI fuel lines to my Holley fuel pressure regulator. The TBI feed line is 16mm and return line is 14mm. The fittings on the regulator are AN -6. I've checked Earl's and others from Summit and Jegs. All help is appreciated.
AN to Saginaw:
9894DBH Female 14mm x 1.5" to -6: Fuel Injection Female "O" Ring Seal
9894DBJ Female 16mm x 1.5" to -6: Fuel Injection Female "O" Ring Seal
991954 14mm x 1.50" to -6: Fuel Injection - "O" Ring Seal
991955 16mm x 1.50" to -6: Fuel Injection - "O" Ring Seal
The first two would be used to connect to the hardlines at the frame rail.
The last two would be used to connect to the rubber lines that go from the frame rail to the engine.
Pick the two to use based on where you are connecting to the fuel system.
RBob.
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Car: 87' Firebird Formula
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Re: Fuel Lines
Thanks guys. I went ahead and took it to a hydraulic line shop and got the correct ends pressed onto my lines to accept the AN -6 fittings. And the FPR i'm using is the Holley 12-803bp for fuel systems with a return line. The ports are 3/8 NPT and it came with 3 3/8 NPT to AN -6 fittings. That's why I needed fittings to convert. But thanks again!
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#8
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Re: Fuel Lines
For the future I was able to get the type of fitting you were looking for from Jegs when I adapted an oil cooler onto my Ducati.
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