EFI to Carb conversion
Cargo Master
Joined: Sep 2006
Posts: 2,120
Likes: 390
From: Evansville, Indiana
Your truck has a six port Dual Function Reservoir. I would expect the original fuel return line FROM the engine to now be pouring out fuel from the reservoir side if not capped off.
Tank pump is moving fuel into the DFR and it is coming out both the original engine side lines.
Looks like the return 5/16 lines on my truck were once white. Now a aged tan color.
I don't think a single reservoir would do this. I believe engine return fuel on a single tank system just goes straight through to the tank. A dual tank setup allows for return fuel to flow into both the selected tank and the reservoir.
Tank pump is moving fuel into the DFR and it is coming out both the original engine side lines.
Looks like the return 5/16 lines on my truck were once white. Now a aged tan color.
I don't think a single reservoir would do this. I believe engine return fuel on a single tank system just goes straight through to the tank. A dual tank setup allows for return fuel to flow into both the selected tank and the reservoir.
Moderator
Joined: Jan 2001
Posts: 56,980
Likes: 2,735
From: Virginia
Your truck has a six port Dual Function Reservoir. I would expect the original fuel return line FROM the engine to now be pouring out fuel from the reservoir side if not capped off.
Tank pump is moving fuel into the DFR and it is coming out both the original engine side lines.
Looks like the return 5/16 lines on my truck were once white. Now a aged tan color.
I don't think a single reservoir would do this. I believe engine return fuel on a single tank system just goes straight through to the tank. A dual tank setup allows for return fuel to flow into both the selected tank and the reservoir.
Tank pump is moving fuel into the DFR and it is coming out both the original engine side lines.
Looks like the return 5/16 lines on my truck were once white. Now a aged tan color.
I don't think a single reservoir would do this. I believe engine return fuel on a single tank system just goes straight through to the tank. A dual tank setup allows for return fuel to flow into both the selected tank and the reservoir.
Lead Driver
Joined: Jun 2013
Posts: 5,659
Likes: 1,159
From: Tolland, CT
If the carb is installed, as far as I know, from old cars in the 70's, there was no need for return fuel. I don't understand why that part of the EFI fuel system is still in place.
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
Hotshot
Joined: Jun 2015
Posts: 12,810
Likes: 2,431
If the carb is installed, as far as I know, from old cars in the 70's, there was no need for return fuel. I don't understand why that part of the EFI fuel system is still in place.
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
FTE Legend
Joined: Nov 2015
Posts: 30,886
Likes: 4,119
From: Angier, NC
If the carb is installed, as far as I know, from old cars in the 70's, there was no need for return fuel. I don't understand why that part of the EFI fuel system is still in place.
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
I would block the return off so if down the road he wants or needs it it is in place.
Dave ----
Moderator
Joined: Jan 2001
Posts: 56,980
Likes: 2,735
From: Virginia
If the carb is installed, as far as I know, from old cars in the 70's, there was no need for return fuel. I don't understand why that part of the EFI fuel system is still in place.
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
Would you just need to feed the carb with fuel ? block off or remove all return hosing ?
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