Dumb Question Options

[sjhenry1075]

So I have a dumb question, but as my wife (who is a teacher) always says, the only dumb question is the question not asked so here goes..

I recently replaced the fuel lines in my 71 with stainless and new braided hose in the engine compartment. My question is, the lines that I purchased from Pelican, the smaller ones, which I believe would be the return lines, would not fit over any of the fittings so I just used the larger line. Does it matter if I use the larger braided hose for both supply and return?

Thank you in advance for being patient and providing answers to my questions..

[jcd914]

(IMG:style_emoticons/default/agree.gif) Chris has everything you need including injector elbows.

When I redid my fuel hoses I was impatient and just went to the Oreilly's Auto Parts by my house and bought some Gates FI Hose with SAE Spec 30R14-2.
You need 30R9 or higher, the 30R14 handles the current fuel but the are 2 version of the Gates hose.
The -1 version is low pressure nit for FI, only 50PSI rating, this is what they brought out first to sell me.
The -2 version is rated at 225PSI which is what I used on my car.

I had to explain to them there were specs for fuel hose.
The AutoZone by me only had 30R7 spec hose and didn't know what it meant.

Jim

[Mark Henry]

(IMG:style_emoticons/default/agree.gif) Chris has everything you need including injector elbows.

When I redid my fuel hoses I was impatient and just went to the Oreilly's Auto Parts by my house and bought some Gates FI Hose with SAE Spec 30R14-2.
You need 30R9 or higher, the 30R14 handles the current fuel but the are 2 version of the Gates hose.
The -1 version is low pressure nit for FI, only 50PSI rating, this is what they brought out first to sell me.
The -2 version is rated at 225PSI which is what I used on my car.

I had to explain to them there were specs for fuel hose.
The AutoZone by me only had 30R7 spec hose and didn't know what it meant.

Jim

30R7 is low pressure hose, technically it can be used on the low pressure sections of a FI system but it's only a few 6" sections so I stick with the 30R9. After reading the technical data I use 30R9 even with carbs.

All braided hose I've used becomes brittle and obvious cracking can be seen on the cut (clamp) end of the hose in as little as 12-18 months.
It's OK for smog/vacuum lines but I refuse to use it for fuel.

[bbrock]

(IMG:style_emoticons/default/agree.gif) Chris has everything you need including injector elbows.

When I redid my fuel hoses I was impatient and just went to the Oreilly's Auto Parts by my house and bought some Gates FI Hose with SAE Spec 30R14-2.
You need 30R9 or higher, the 30R14 handles the current fuel but the are 2 version of the Gates hose.
The -1 version is low pressure nit for FI, only 50PSI rating, this is what they brought out first to sell me.
The -2 version is rated at 225PSI which is what I used on my car.

I had to explain to them there were specs for fuel hose.
The AutoZone by me only had 30R7 spec hose and didn't know what it meant.

Jim

30R7 is low pressure hose, technically it can be used on the low pressure sections of a FI system but it's only a few 6" sections so I stick with the 30R9. After reading the technical data I use 30R9 even with carbs.

All braided hose I've used becomes brittle and obvious cracking can be seen on the cut (clamp) end of the hose in as little as 12-18 months.
It's OK for smog/vacuum lines but I refuse to use it for fuel.

Belmetric sells German braided 30R7 hose in a variety of sizes https://www.belmetric.com/multifuel-hoseeth...roved-c-14_662/

I'm going to try it for vacuum and vent hoses.