Carb Troubles On A Cj

[Fast Road Jay 0]

my sister has recently bought a little 1.4 CJ which we are doing up alongside my GTI mods but it was bought stolen recovered from a scrappy and it has been bodged about a bit! it has a running problem where it wont idle or run at low revs and it runs seriously rich, i think it is a flooding problem but having gone through the carb twice i cant see a problem until.............. as you'll see in the following pics the fuel system has been played with, i spotted a pipe with a bolt in it next too the fuel inlet pipe, i think its a fuel return pipe that has been blanked off, so i started looking a bit closer and i found a sort of fuel resevoir pot with 3 outlets / inlets on it, at the moment the fuel from the tank goes through the pump and straight to the carb but i think it should be going through the resevoir with 1 pipe in from the pump, one outlet to the carb and 1 fuel return, i am thinking the reason it is running so rich is at idle the fuel pump is supplying too much fuel and with no return pipe it is forcing past the contorl needle and flooding constantly! any help would be greatly appreciated.

 

THE RESEVOIR THAT IS NOT CONECTED BUT MOUNTED NEXT TO THE CARB:

 

 

AS YOU CAN SEE IT GOES STRAIGHT FROM THE PUMP / FPR TO THE CARB:

 

 

OVERVIEW:

Edited February 3, 2008 by Fast Road Jay

[Sandy 189]

The return is definitely there for a reason!

[kanyeost 0]

Any help?

 

[Jrod 7]

It's weird.

 

On 5 Xs's none of them had that return, only the XE I bought did.

[Fast Road Jay 0]

kanyeost your a star!!!!!! does anyone know if the return simply runs alongside the inlet, the only thing im wondering is if some did and some didnt then maybe the CJ has had an engine swap and didnt originally have the return and then got an engine from a car that did either way im gonna try setting it up like kanyeost's one and just feed the return into a fuel can or something

[RossD 43]

I think you could be on the right track with your engine swap theory, akaik the CJ never came with the TU3S lump only the cooking 1.4 model with the single choke carb. (That is unless its a later TU3F model with the Solex twin choke....) What year is the car?

[Fast Road Jay 0]

its on a J-plate and the carb / set up is identicle to kanyeosd

[Jrod 7]

Check if the tank has a return.

 

Under the rear seats there is a large black plastic cover. If it has 2 pipes going into the tank then you know its right, if not ditch the whole swirl pot setup.

[joe1joe 3]

heres my xs (tu3s) mines mounted diffrently, and both fuel lines run down the passengers side, and u can use 8mm copper pipe which is what I done, and mine also has the one way valve aswel, and i have got a tank if u need one.

 

[Fast Road Jay 0]

hmmm looks like the same setup just different lay out, gonna try it like i said before and if it works i will sort out a return of some sort!