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Discussion Starter #1
Hey I have an 84 fleetwood with the HT4100. I did a headgasket swap on it and put everything back together but i cant figure out where one fuel line runs.

The metal fuel line runs from the back of the carb on the far passenger's side. There are 3 lines that run off the back, and I can't figure where the far passenger's side line runs to. I've looked everywhere and can't seem to find anywhere it could run. It seems to be either a feed or return line from the tank, but I traced the lines from the tank and still can't figure it out.

Sounds pretty dumb, but i actually can't figure it out
 

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I'm not sure, they way the tube is bent looks like it should run back behind the distributor and down on the drivers side of the engine. It's a fairly good sized line
 

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On the HT 4100 RWD, the Fuel and Return line run to the driver's side rear of the engine block. I'm about 2400 miles from my home, when I return I can try to see what you are talking about.

Is it black? does it go to a check valve. It could possibly be the tube for the AIR system, this would be routed to your exhaust manifold.
 

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Hey, no its not black its a metal line probably about 5/16" outer diameter. There are three lines that screw into the back of the carb, they look like those. The other 2 lines run on the drivers side of the engine, i dont think its a vacuum line. Its strange because i can't see any hose or nipple anywhere where this line could attach to!?

I'll try to get a picture of the fuel line if i can. It's pre shaped, so it seems like it runs to the drivers side of the engine and down where the other lines go, but theres nowhere to attach it.
 

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Of the three lines at the back of the throttle body, the two that run toward the driver's sides are fuel and return. Maybe the threaded part fell off somewhere.
 

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Two of the lines are for fuel, the other is for air from the smog/AIR pump. I believe the big one on the passenger side is for the AIR pump.

Each of the lines should have a black threaded fitting on them.
 
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