Fuel Cell Question: We don't need the RETURN line right? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TIMSPEED · 06-21-2004, 08:45 PM

When I put the fuel cell in my 75, I can just cap the RETURN portion on the tank, right? Also, I can remove my Charcoal Canister, because the fuel cell has a pressure relief valve built-in, right?

Mike76251 · 06-22-2004, 07:29 AM

The purpose of the return line is to help prevent vapor lock by circulating fuel back to the tank.
I would say you would be okay blocking the line at the tank but if you suddenly have a bad case of vapor lock you will want to hook it back up.

TIMSPEED · 06-22-2004, 06:43 PM

I do believe I don't have a return line right now, because where would it come from? The fuel pump doesn't have a return line going off of it..

Mike76251 · 06-23-2004, 10:25 AM

If you have a two line pump then you don't have a return setup.......like you said.
Just cap it well at the tank then and good luck.

bagged81 · 06-23-2004, 03:59 PM

I dont have a return line on my cell.

loweredd · 07-07-2004, 08:06 PM

With a stock"ish" manual fuel pump, you shouldnt need a return. The return is to let excess fuel back to the tank, like in the case of an electric pump, so it doesnt burn itself up.

06-21-2004, 08:45 PM	#1
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	Fuel Cell Question: We don't need the RETURN line right? When I put the fuel cell in my 75, I can just cap the RETURN portion on the tank, right? Also, I can remove my Charcoal Canister, because the fuel cell has a pressure relief valve built-in, right? __________________ I have a few cars... See Them Here

06-22-2004, 06:43 PM	#3
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	I do believe I don't have a return line right now, because where would it come from? The fuel pump doesn't have a return line going off of it.. __________________ I have a few cars... See Them Here

06-23-2004, 03:59 PM	#5
bagged81 Signals in the bumper. Join Date: Feb 2003 Location: East TN Posts: 856	I dont have a return line on my cell. __________________ Jeff C. 1981 Chevrolet Silverado - Under major construction...again. link 1962 Chevrolet Impala 4D Sedan moredoorclassics.com 1936 Ford Pickup - Frame-off in progress link 1979 Chevrolet Camper Special Flatbed link

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06-22-2004, 07:29 AM	#2
Mike76251 Senior Member Join Date: Mar 2003 Posts: 2,499	The purpose of the return line is to help prevent vapor lock by circulating fuel back to the tank. I would say you would be okay blocking the line at the tank but if you suddenly have a bad case of vapor lock you will want to hook it back up.

06-23-2004, 10:25 AM	#4
Mike76251 Senior Member Join Date: Mar 2003 Posts: 2,499	If you have a two line pump then you don't have a return setup.......like you said. Just cap it well at the tank then and good luck.

07-07-2004, 08:06 PM	#6
loweredd www.loweredd.com Join Date: Aug 2002 Location: Struble IA Posts: 808	With a stock"ish" manual fuel pump, you shouldnt need a return. The return is to let excess fuel back to the tank, like in the case of an electric pump, so it doesnt burn itself up.



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