32/36 DFEV Fuel Return?

[opus10583]

Hi,

What's this about the 32/36 DFEV not having a fuel return fitting?

...How the hell does that work?

Both the Weber and the EMPI?

Thanks,
Mark

[scarlson]

When using one of those carburetors, the fuel return line gets capped off at the metal line. In theory, having a fuel return will keep the fuel supply at the carb cooler preventing vapor lock. I've put a few thousand miles without it and haven't had any issues. Nor have I heard of anyone on this forum having vapor lock. Just connect the supply, cap the return, and go

[So Cal Mark]

vapor lock normally occurs at the fuel pump so cars that have a factory fix have a return line at the pump. This keeps fuel circulating through the pump, thus cooling it. If you're determined to use the return line, you can get a Chrysler filter with a return fitting built into it

[redek]

Mark, do you have a part number on the chrysler filter with return fitting. My electric pump constantly runs, and I would like to keep it cool. I have been considering installing a fuel regulator with a return line, but if that isn't necessary that would be great. Thanks

[opus10583]

So what happens when pressure builds against the float valve? Is there a bypass in the mechanical pump or does that need to be replaced with electrics?

Thanks,
Mark

[So Cal Mark]

I'll have to research the filter number and you can keep the mechanical pump, no need to switch to electric

[So Cal Mark]

it fits 79-82 Chrys New Yorker, here's a pic of the Fram part

[baltobernie]

Thanks a bunch, Mark.

Are these marked on the can? In your photo, is 6 o'clock in, 12 out, and 3 return?

[So Cal Mark]

that orientation is correct. I'm not sure if all mfgs mark the return line but in n out should be indicated

[124JOE]

"by the looks"
the top is the out
the side is the return
and the the bottom would be the in