73-87chevytrucks.com
Technical Forum (Read Only) => Computers, Fuel and Emissions => Topic started by: 87r10shorty on August 04, 2008, 03:02:31 PM
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Anyone have a fuel line schematic for a dual tank setup on a 87?
Basically what I am trying to do is a dual tank to single tank conversion.
If any one has a write-up on how to do that, that would be great.
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If you are eliminating one of the tanks, just pull the switching valve off and connected the lines accordingly. You will have a supply, return and Vent. Use EFI rated hose though.
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I thought the power for the pumps ran through the switching valve, will the fuel pump still work with no valve in place?
I went ahead and unplugged the switching valve, and ran my lines together bypassing the valve. I tried to start the truck no joy. I don't even hear the fuel pump kick on. What is my next course of action. While the lines were undone from the valve i went in to the cab turned the key and hit the tank selector switch, gas poured out of the valve, so i would guess the selector valve is good.
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(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=23791.0;attach=19850;image)
(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=23791.0;attach=19852;image)
(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=23791.0;attach=19854;image)
(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=23791.0;attach=19856;image)
(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=23791.0;attach=19858;image)
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(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=9072.0;attach=29488;image)
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Dual Tank TBI Gauge
(https://drive.google.com/uc?id=0B8yVwIOnwzXXU0s3ZHRaRlhvbTQ)
Dual Tank TBI Relay
(https://drive.google.com/uc?id=0B8yVwIOnwzXXZFpCeThFejZhZW8)
Single Tank TBI Gauge
(https://drive.google.com/uc?id=0B8yVwIOnwzXXeWU3V1pDNEZCT0k)
Single Tank TBI Relay
(https://drive.google.com/uc?id=0B8yVwIOnwzXXc0dsUUtlTlhldU0)
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Henry's drawing and post here http://forum.73-87chevytrucks.com/smforum/index.php?topic=36844.0;topicseen