Return Fuel Line? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jkade · 10-08-2006, 04:04 PM

Do the 69-72 blazers have a return fuel line? I can't remember.

jkade · 10-08-2006, 10:24 PM

I figured I would get a answer for this quick

hotrodhomi · 10-08-2006, 10:26 PM

mine did. How many lines are on your pump?

Blazer1970 · 10-09-2006, 06:37 AM

The return line started in '71 or '72, I think. My '70 does not have one.

**Yukon Jack** · 10-09-2006, 09:53 AM

My 70 doesn't have one either.

tpi72blazer · 10-09-2006, 02:45 PM

My 72 4x4 did have a return line. It is completely inadequate for fuel injection applications however.

jkade · 10-09-2006, 04:02 PM

Quote:

Originally Posted by tpi72blazer

My 72 4x4 did have a return line. It is completely inadequate for fuel injection applications however.

May I ask why?

tpi72blazer · 10-10-2006, 08:56 AM

The return line is only 1/4" The minimum recommended size you can use for a return line is 3/16" and 3/8" is preferred.

jkade · 10-10-2006, 09:11 AM

Quote:

Originally Posted by tpi72blazer

The return line is only 1/4" The minimum recommended size you can use for a return line is 3/16" and 3/8" is preferred.

Oh I see. Thanks for the info. That is just what I didn't want to hear.

10-08-2006, 04:04 PM	#1
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,517	Return Fuel Line? Do the 69-72 blazers have a return fuel line? I can't remember.

10-08-2006, 10:24 PM	#2
jkade Senior Member Join Date: Nov 2005 Location: AL Posts: 2,517	Re: Return Fuel Line? I figured I would get a answer for this quick

10-08-2006, 10:26 PM	#3
hotrodhomi Registered User Join Date: Apr 2004 Location: Sacramento Posts: 3,737	Re: Return Fuel Line? mine did. How many lines are on your pump? __________________ '72 2wd blazer, bagged w/ watts link & EDC '72 C10 "Lowered Farm Truck" STOLEN 5-18-11 '66 impala ht

10-09-2006, 06:37 AM	#4
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	Re: Return Fuel Line? The return line started in '71 or '72, I think. My '70 does not have one. __________________ Tim

10-09-2006, 09:53 AM	#5
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Re: Return Fuel Line? My 70 doesn't have one either. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

10-09-2006, 02:45 PM	#6
tpi72blazer Tpi72Blazer Join Date: Sep 2004 Location: Colorado Posts: 92	Re: Return Fuel Line? My 72 4x4 did have a return line. It is completely inadequate for fuel injection applications however. __________________ Indian - the other money pit

10-10-2006, 08:56 AM	#8
tpi72blazer Tpi72Blazer Join Date: Sep 2004 Location: Colorado Posts: 92	Re: Return Fuel Line? The return line is only 1/4" The minimum recommended size you can use for a return line is 3/16" and 3/8" is preferred. __________________ Indian - the other money pit

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