Carburettor and fuel reservoir

[JMallows]

Hi, have recently fitted a weber to my 1.3. The original (Pierburg 2E3) had a suction line to the fuel pump, then a feed to a reservoir, which went to a) the carb, and b) a return to the tank.

The weber doesnt have a return on the carb, so the current setup is the suction line to the fuel pump, then from there to a T-piece connector, where one outlet goes to the carb, and the other goes via a small restricting jet to the tank as a return.

The problem i have is, the pipes are old, and i want to replace them (perishing a bit), but the T-piece has two different size hose connections, so i have to use a further connector to increase the size of the pipe. All these connections and different size pipes are annoying, and what i want to know is whether i can mount the Pierburg fuel reservoir/vapour separator somewhere, and use it in much the same way as the original carb did?

The part number on the reservoir is 052127177a, and there is a pic of one here:


Thanks

[JMallows]

Anyone??

[DOA]

You sure you even need the tank return if using a weber?

[danny_p]

yes you do,

use the original fuel resovor thing  it acts as a pressure regulator as well.   dircet to the fuel pump works but the float valve struggels and can weep to much fuel by

[DOA]

Fair do's  . Other option is to use a motorbike fuel pump from a carbed version and then you definately dont need a return.

[JMallows]

yes you do,

use the original fuel resovor thing  it acts as a pressure regulator as well.   dircet to the fuel pump works but the float valve struggels and can weep to much fuel by

Ok, so what would the difference between the reservoir and the t-piece, just a pressure regulator/vapour sepeartor? How come Weber say to use the t-piece and not the reservoir, is it just a simple cost thing?

Thanks

[danny_p]

T's work  and they are cheeper to chuck in a kit. 

the vapor seporator, fuel resovor, whatever you want to call it dose exactly the same function,  just supplys a slight  pressure to the carb,   i personaly don't like sigel line fuel systems esp at low pressure

[JMallows]

Ok, i'm guessing then that my problem might not be related to the t-piece then? If i slow down for a corner, then accelerate, it will hesitate badly, then be fine. Same with pulling away at junctions. I thought it might be fuel starvation, due to a leak, hence replacing the pipes. I tthen thought, if the t-piece is making the float valve struggle as you said, then it could be flooding the carb, and the hesitation could be due to this flooding?

Thanks

[danny_p]

fuel leacks stink thats usally the first indication of one. 

hesitating badly when pulling away / pulling out of a corner is usally a lack of accseloration enrichment.  on a carb i would check that your pump jets arn't blocked and that the accsel pump is actualy pumping, they can get blocked up or seals perish

take the air filter off,  with the engine stoped manualy open the carb to full throttel and you should see a jet of fuel squirted down the choke if not find out why

[JMallows]

It has just had a brand new weber, so hopefully i can rule out the acceleration enrichment due to blocks or perishing.

It had a pierburg 2E3 on before, and i could smell fuel before, i replaced the carb (not really sure why in hindsight) and it almost seems worse!

If i press the pedal, i can see a small amount of fuel come out, but i will double check it again...