Fuel line fittings question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mccurrkm · 12-04-2013, 12:09 PM

Ok, I know this has been asked and answered a hundred times I'm sure but I keep getting confused. Right now I have an inline pump and it is giving me some trouble so I have bought an 87 tank and sending unit to replace what I have. I also bought a new pump to put in the tank (my truck is an 85). I have attached a picture of the sending unit I bought it is Dorman # 692-027. I know I can just slip the fuel line over the fittings and clamp it but I was wanting to do something more secure and possibly use braided line. My question is what fittings do I need to go from the sending unit lines to the fuel line and how do I connect them? I am getting confused with compression fittings and AN fittings and I don't know much about them, the differences or if they are the same or what so I figured I would just flat out ask. I also need to know about attaching it to the corvette regulator. Part numbers would be great as well! Thanks!

Wasted Income · 12-04-2013, 12:35 PM

I TIG'd a steel AN fitting to the return, and flared the tube for a female AN flare nut on the feed. I also TIG welded the emissions vent line closed.

mccurrkm · 12-05-2013, 11:41 AM

looks good! What degree flare did you use? Thanks!

Wasted Income · 12-05-2013, 12:07 PM

It's a single 37* JIC / AN flare. It mates up to AN fittings.

UP GRADE · 12-05-2013, 06:02 PM

Wasted income where did you buy your unit from and is it for the 72 blazer fuel tank. Thanks James

Wasted Income · 12-05-2013, 11:03 PM

It's from a 1991 K/5 blazer. 31 gallon. The pump module is for the same truck, with a high pressure fuel pump put in it's place.

UP GRADE · 12-06-2013, 06:06 PM

Hey wasted income I have a couple more questions. Where did u get the unit and pump and Which tank are u using on your truck?

High ho silverado · 12-06-2013, 08:30 PM

I bought safety push on 3/8 and 5/16 to -6 fittings and cut the bubble off the end of the sending unit and put them on jus like they attach to the fuel rail, then jus used push lok hose and fitting down to the steel fuel line on my frame then used compression to an fittings to connect them. My fone won't let me attach pics or I'd send u one, it was really easy if u don't wanna do any welding, I think I can send them from my tablet on here if u want a pic, jus ask.

mccurrkm · 12-09-2013, 12:16 PM

Quote:

Originally Posted by High ho silverado

I bought safety push on 3/8 and 5/16 to -6 fittings and cut the bubble off the end of the sending unit and put them on jus like they attach to the fuel rail, then jus used push lok hose and fitting down to the steel fuel line on my frame then used compression to an fittings to connect them. My fone won't let me attach pics or I'd send u one, it was really easy if u don't wanna do any welding, I think I can send them from my tablet on here if u want a pic, jus ask.

Yea if you get a chance that would be great! I don't mind welding but I don't have a tig rig at home, just mig. Thanks!

Wasted Income · 12-09-2013, 12:56 PM

Quote:

Originally Posted by UP GRADE

Hey wasted income I have a couple more questions. Where did u get the unit and pump and Which tank are u using on your truck?

Everything came from rockauto.com

The tank is a 1991 K/5 Blazer tank. 31 gallon.

12-04-2013, 12:09 PM	#1
mccurrkm Registered User Join Date: Feb 2012 Location: Anderson, SC Posts: 164	Fuel line fittings question Ok, I know this has been asked and answered a hundred times I'm sure but I keep getting confused. Right now I have an inline pump and it is giving me some trouble so I have bought an 87 tank and sending unit to replace what I have. I also bought a new pump to put in the tank (my truck is an 85). I have attached a picture of the sending unit I bought it is Dorman # 692-027. I know I can just slip the fuel line over the fittings and clamp it but I was wanting to do something more secure and possibly use braided line. My question is what fittings do I need to go from the sending unit lines to the fuel line and how do I connect them? I am getting confused with compression fittings and AN fittings and I don't know much about them, the differences or if they are the same or what so I figured I would just flat out ask. I also need to know about attaching it to the corvette regulator. Part numbers would be great as well! Thanks! Attached Images __________________ My 85 LQ4 Build

12-04-2013, 12:35 PM	#2
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: Fuel line fittings question I TIG'd a steel AN fitting to the return, and flared the tube for a female AN flare nut on the feed. I also TIG welded the emissions vent line closed. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

12-05-2013, 11:41 AM	#3
mccurrkm Registered User Join Date: Feb 2012 Location: Anderson, SC Posts: 164	Re: Fuel line fittings question looks good! What degree flare did you use? Thanks! __________________ My 85 LQ4 Build

12-05-2013, 12:07 PM	#4
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: Fuel line fittings question It's a single 37* JIC / AN flare. It mates up to AN fittings. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

12-05-2013, 06:02 PM	#5
UP GRADE one set closer Join Date: Jul 2003 Location: Memphis TN. Posts: 722	Re: Fuel line fittings question Wasted income where did you buy your unit from and is it for the 72 blazer fuel tank. Thanks James

12-05-2013, 11:03 PM	#6
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: Fuel line fittings question It's from a 1991 K/5 blazer. 31 gallon. The pump module is for the same truck, with a high pressure fuel pump put in it's place. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

12-06-2013, 06:06 PM	#7
UP GRADE one set closer Join Date: Jul 2003 Location: Memphis TN. Posts: 722	Re: Fuel line fittings question Hey wasted income I have a couple more questions. Where did u get the unit and pump and Which tank are u using on your truck?

12-06-2013, 08:30 PM	#8
High ho silverado Registered User Join Date: Sep 2012 Location: clearmont mo. Posts: 75	Re: Fuel line fittings question I bought safety push on 3/8 and 5/16 to -6 fittings and cut the bubble off the end of the sending unit and put them on jus like they attach to the fuel rail, then jus used push lok hose and fitting down to the steel fuel line on my frame then used compression to an fittings to connect them. My fone won't let me attach pics or I'd send u one, it was really easy if u don't wanna do any welding, I think I can send them from my tablet on here if u want a pic, jus ask. __________________ Dan G Lift it, fat chicks cant jump! 83 Chevy shortbed 4x4: 6.0 ls powered 97 Chevy 3/4 ton ex cab 454: work horse 00 Chevy camaro: daily driver 83 Chevy 3/4 ton: dads old rig



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