Weber 32/36 with two fuel lines??? (PICS)

[Mulisha620]

I am getting ready to put this weber on my 74 620- It's got the stock L18-

 

I am planning on running a fuel regulator in between the fuel pump and the carb, as I've heard way too many times that it's just a better idea.

 

But as far as I've seen on this forum I haven't seen an L series motor with a weber 32/36 that has 2 fuel inlet/outlets....

 

Can you guys help me with how I would go about hooking this up?

 

The carb----------

 

 

These are the two fuel barbs:

 

The brass tubing on this one is heavier wall tubing...

 

And this is the other barb that is made of thinner wall tubing...

 

Here's the stamp:

 

And the other stamp (Is this the serial number??)

 

And this is the vacuum line that I hook up to my distributor, right?

 

 

Thank you guys very much for the input-

[graveltrapp]

My guess is that is was on another car that had a fuel return line back to the tank. Cap the lower right side and check the screen inside the housing... you should be fine.

[datzenmike]

Might have been for a multiple carb set up too. Remove and plug.

[Sealik]

The lower right is the fuel inlet...some Webers has 2 options for connection, depending on how one wants to route the fuel line

Looks like the left side is plugged though

Top fitting is the return fuel line (smaller orifice)? which could be hooked up?....or plugged and a return line plumbed in to the inlet line

[datzenmike]

Good point about the return line Doug. This would be handy on an L20B that had return lines.

[Sealik]

Good point about the return line Doug. This would be handy on an L20B that had return lines.

 

Ya....If I had a return line...I would hook it up and see what happens...or not :D

[Mulisha620]

So I'm going to connect the fuel line to the barb on the left side first, and cap the other-

 

If that doesn't work I'll do the opposite?

 

I'm not going to hurt anything by hooking this up wrong am i?

[yello620]

The fuel inlet is the one that points down at an angle.

 

And i dont think that the other is a return line, fuel has no reason to be that high up in the float bowl. I actually think that it is supposed to be a vapor line to a charcoal canister?

[Sealik]

The fuel inlet is the one that points down at an angle.

 

And i dont think that the other is a return line, fuel has no reason to be that high up in the float bowl. I actually think that it is supposed to be a vapor line to a charcoal canister?

 

 

The line to the canister is just below the thumb in this pic.....looks like it's plugged(?) anyways.

 

 

Fuel line is on the right.....plug the one on the left.

[Sealik]

As seen here....large black plug in foreground

 

 

rhabdo71 pic

[yello620]

The line to the canister is just below the thumb in this pic.....looks like it's plugged(?) anyways.

 

 

Fuel line is on the right.....plug the one on the left.

 

 

Sealik, after looking at it again, i would have to agree with you. Fuel could be that high up in that spot(since it hasnt actually entered the float bowl yet) and be used as a return line.

[Mulisha620]

Yeah that hole, the one that Sealik said was for a charcoal canister, is plugged. (the one that's right below my thumb in the picture)

 

And I kinda thought the incoming fuel line would belong to the thinner wall tubing barb, on the bottom right.

[Z-train]

Thru inlet(s) indicates to me that it might have been on a Z car where they were using that carb to feed the second one.I have a FP guage in the "output" side of mine.