84 hatch fuel line routing: tank to carb?

[subie_newbie]

I need to know how the fuel line routing works on a carb'd 84 hatch. I'm ignoring the carbon canister since I don't have one anymore.

 

Here's what I've got so far:

 

- Four lines front to rear

 

- One is return

- One is vent (used to go to canister)

 

Then, one looks to be pressure/feed, goes through the base of the filter and to the carb...but....

 

Then a line t's off the pressure line at the carb, returns to the TOP of the filter, but also t's at the filter and returns to the rear of the car by, for some reason, going a foot inboard then through the firewall then all the way across the driver's feet under the dash, then rearward in the car. WTF????

 

Can anyone tell me what this fourth line is, and if I'm correct in assuming one of the four is a return? Anyone have a schematic drawn up?

 

THANKS!

[naru]

Then, one looks to be pressure/feed, goes through the base of the filter and to the carb...but....

 

Then a line t's off the pressure line at the carb, returns to the TOP of the filter, but also t's at the filter and returns to the rear of the car by, for some reason, going a foot inboard then through the firewall then all the way across the driver's feet under the dash, then rearward in the car. WTF????

 

Can anyone tell me what this fourth line is, and if I'm correct in assuming one of the four is a return? Anyone have a schematic drawn up?

 

THANKS!

 

You are correct about the pressure/feed lines.The line T`ng off is the return.It has an orfice.

 

Look carefully,I think you will find the fourth line is a brake line.

[[HTi]Savage]

If u have a shop manul for it then i think that inside there is an explenation of what all that crap is. I remember seeing it in mine, cant recall witch is witch but I will look when I get a chance.