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Guest Message by DevFuse
 

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3 line fuel filter & vent line


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5 replies to this topic

#1 bobaru

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Posted 04 November 2009 - 09:53 PM

the car 82 ea81 carter-weber........ Im installing a weber ea82 intake every thing ok so far ..

now hooking up the fuel lines the filter has 3 lines

fuel in from tank (size 5/16)........fuel out to carb (5/16) .......3rd line looks like a fuel return (1/8)

do I need that 3rd line, or just plug it..............

looks like the the tank vent line runs into the charcoal canister.....T or F

Edited by bobaru, 04 November 2009 - 11:04 PM.


#2 GeneralDisorder

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Posted 05 November 2009 - 10:21 AM

Remove the stock filter and install a plain one inlet/one outlet fuel filter. You don't want or need that vapor seperator. In fact you don't need a filter in the engine bay at all as there is one back by the pump. The "filter" in then engine bay is really a vapor seperator not primarily a filter.

Remove the canister and just leave the tank vent open.

GD

#3 bobaru

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Posted 05 November 2009 - 10:24 AM

Again thank you GD

I like the Idea of the second filter will do .................
has any body ever put a filter on the vent line......... like .........http://www.grainger....A325?Pid=search

Bob

Edited by bobaru, 05 November 2009 - 11:00 AM.


#4 thornleyjacob

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Posted 27 March 2015 - 01:01 AM

Remove the stock filter and install a plain one inlet/one outlet fuel filter. You don't want or need that vapor seperator. In fact you don't need a filter in the engine bay at all as there is one back by the pump. The "filter" in then engine bay is really a vapor seperator not primarily a filter.

Remove the canister and just leave the tank vent open.

GD

 

Doing a Weber conversion and looking at my options for the engine bay fuel filter, return line, and fuel tank vent line... I like the idea of just deleting it all like you basically say here. But what happens if I am in a steep decline and the line's opening is at lower elevation than that of the gas tank; wouldn't it leak? If so, how does one stop that from happening?



#5 l75eya

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Posted 27 March 2015 - 03:03 PM

I think that would only really occur if you flipped over. I'm just speculating, but being a return line, the other end of that hose probably goes to the very top of the fuel tank.

That's really just a guess, but I do see your concern. Could probably just go back there and look.



#6 thornleyjacob

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Posted 27 March 2015 - 03:19 PM

I think that would only really occur if you flipped over. I'm just speculating, but being a return line, the other end of that hose probably goes to the very top of the fuel tank.

That's really just a guess, but I do see your concern. Could probably just go back there and look.

 

That is what I am thinking too; I cannot understand how else it would have worked originally as the charcoal canister would have flooded with fuel in the same scenario. Also, the return line is not the issue - this one we plug off. Its the fuel tank vent line that I'm worried about.






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