Printable Version of Topic

Click here to view this topic in its original format

914World.com _ 914World Garage _ Fuel line confusion

Posted by: Ctrout Jul 24 2004, 01:47 PM

There are two fuel lines coming out of the firewall going to the fuel pump and filter in my 74 1.8 with L-jet. They run side-by-side. which line is the one toward the driver's side? Which is the one toward the passenger side? Also, how does the "Y connecter" get hooked up to the pump? Thanks.

Posted by: type47 Jul 24 2004, 02:24 PM

"toward the drivers side"???? they should both run parallel towards the fuel pump location in the front corner of the engine compartment on the passengers side. the "Y" goes on the return side of the pump. better to look at pelican diagram than for me to try to explain and give false info. one big question that needs to be answered is which line is feed and which is return...

Posted by: Ctrout Jul 24 2004, 03:12 PM

I guess this is what I mean. The lines in my car both appear to be the same diameter so I can't use that as a means of determining supply and return lines.

Attached thumbnail(s)

Posted by: Mike D. Jul 24 2004, 03:12 PM

The hard lines coming out of the fire wall are different sizes. The 8mm hose is the draw and 7mm is the return to the tank. Make sure you hook them up right because the return side doesn't have a screen over it in the gas tank and you can end up pulling crud from your tank.
-Mike D.

Posted by: Ctrout Jul 24 2004, 03:16 PM

So where does the supply line go to? The fuel filter? Then out to where? The y fitting? Then one side to the pump and one to the fuel rail? Three holes in the pump is very confusing.

Posted by: Ctrout Jul 24 2004, 03:29 PM

Like this?

Attached thumbnail(s)

Posted by: Ctrout Jul 24 2004, 09:58 PM

Got it running. If I remember right, this is what I did.

Attached thumbnail(s)