weber set upppp

Jinx · #1 (**permalink**) 09-09-2002, 04:56 PM

How do I hock up a fuel reteurn line on a set of webers??? please any help out there?? jinxs

Cal Metal · #2 (**permalink**) 09-10-2002, 07:34 AM

Use a AN 6 line and insert a 180-200 main jet in the line to bleed off fuel. Typically one can run a T type fitting off the last carb to accomodate the return line as well as the fuel pressure gauge.

thundercat · #3 (**permalink**) 09-11-2002, 07:41 PM

I'm in the prosess of installing Webers also.. Is a return required ?? Does it have an effect on operation or just bleed off pressure when engine shut off???? THANKS Steve McD

Jinx · #4 (**permalink**) 09-12-2002, 05:00 AM

Steve..from what I understand.. fuel return line cut the pressure when you shut off your car so you dont have a hot start up..I think thats all it dose.I was told you need this so Ill put one in mine.... jinxs

Cal Metal · #5 (**permalink**) 09-13-2002, 08:24 AM

A couple of issues here. One of the problems is that if you don't use the phenolyic (sp) gaskets you run the chance of generating too much heat through the base of the carbs and the fuel boils into the carb on top of the throttle plate. We use these on Old Yeller and the carbs are warm to the touch ten minutes after the car is done racing. Also. the OEM needle seats are not the best design and I recommend using the G & D design which is a double ball design. Enzo put me on to these a few years ago. If you try both of those suggestions you may not need to run a return line. If you have an electric fuel pump, you might want to shut the pump off (if you have a switch on the dash) a block or two before you arrive home. This will deplete the amount of gas in the bowl and the fuel will not be in sufficient quantity to boil out through the carb bore.

If you want to run a return line, Richard Hudgins wrote a very good piece on CC as to how the line should be positioned in the tank so as to not aerate fuel. It was a very good analysis. Good luck.