vapor return line clogged
Thread Starter
Intermediate
Joined: May 2006
Posts: 38
Likes: 0
vapor return line clogged
Any body have any ideas on unplugging a vapor return line! I am running a electric fuel pump on my 69 vette with a ZZ4 and want to send the extra fuel back to the tank so my pump doesnt die. Ive heard that electric pumps like to "" run" . The line was capped up many years ago but now I want to use it but its clogged. I tried to roto rooter it with some wire but that didnt work. I could run a new line but that would be a real PIA. Thanks 
Pro
Joined: Apr 2007
Posts: 736
Likes: 1
From: Chester VA
I don't believe you should use the vapor line as a return line. Someone else should chime in, I have just been told it's a no-no and don't know exactly why. You're connecting the return line to a regulator I assume?
Melting Slicks
Joined: Nov 2000
Posts: 2,738
Likes: 53
From: Bogart GA
I believe the line in question is a return line not a vapor line. I am also guessing he really means "return" line.
My recommendation would be to plumb the pump next to the tank and run a new return to the tank or splice into the existing line or just go with a mechanical pump with a regulator.
Why would you need a regulator on a return line??
It sounds like your return line is toast and running a new line is a PITA. You don't need an elecrtric pump for a carb application which I assume you are running.
My recommendation would be to plumb the pump next to the tank and run a new return to the tank or splice into the existing line or just go with a mechanical pump with a regulator.
Why would you need a regulator on a return line??
It sounds like your return line is toast and running a new line is a PITA. You don't need an elecrtric pump for a carb application which I assume you are running.
Thread Starter
Intermediate
Joined: May 2006
Posts: 38
Likes: 0
Thanks for all the help! Ill try the compressed air and good hose clamp idea . The pump is located in the back . I put the electric pump in when I installed the zz4. I have headers and air and it gets a little tight on that side when you want to change the plugs . Not having the regular pump there gives me more room to work with.
Racer
Joined: Oct 2006
Posts: 396
Likes: 3
From: Buffalo New York
Thanks for all the help! Ill try the compressed air and good hose clamp idea . The pump is located in the back . I put the electric pump in when I installed the zz4. I have headers and air and it gets a little tight on that side when you want to change the plugs . Not having the regular pump there gives me more room to work with.
