Weber 32/36 problems (20R)

Lespaulstandard · Oct 23, 2007

I have a brand new weber 32/36 on my 20R. I have followed weber's instructions exactly. I am running 2.5 PSI using a Holley FPR. For some reason, the truck is running waaaay too rich. The truck runs best with the idle mixture screw lightly seated, and even then, it still turns the plugs black (after just backing out of the driveway and running down the road once (about 1/4 mi).:wtf: :booo:

I bought the carb from a friend who said it was for a 20R. I have never over torqued the mixture screw. I'm pretty much stumped. Anybody have any thoughts?

bobbed_84_toy · Oct 23, 2007

get smaller main jets

crash2 · Oct 23, 2007

bobbed_84_toy said:
get smaller main jets

The main jets make no difference at idle--you have to remember a weber is a prgressive carb--it stacks the circuits as it goes from idle to WOT.

You have a problem with fuel bleeding into the venturies..

CrustyJeep · Oct 23, 2007

Float level perhaps...

If it were me, I'd drop kick that POS into the dumpster where it belongs.

84Toyota4x4 · Oct 23, 2007

Ditto. Webers are POSs. That said, on mine which supposedly came jetted, it was COMPLETELY wrong.

~T.J.

Lespaulstandard · Oct 23, 2007

I dont exactly have the money to switch to a different carb right now.

84Toyota4x4 · Oct 23, 2007

Im not saying you have to. My Weber has been running good for me for a while, its just aggravating when you get high up on mountains and it doesnt run well due to the altitude, or when you get on angles and it dies out no matter how you adjust your floats, etc.

All you need to do is re-jet it and I'm sure it will run great for you, as good as it can run anyway.

~T.J.

Lespaulstandard · Oct 23, 2007

Anybody have jetting suggestions? Also, how far should the choke plate open up when hot?

CrustyJeep · Oct 23, 2007

Lespaulstandard said:
Also, how far should the choke plate open up when hot?

Um... All the way :flipoff:

Lespaulstandard · Oct 23, 2007

I just noticed something interesting... I went out and looked at the box that the carb came in, and it is for a Toyota Celica 8RC, 18RC. Wouldn't this mean that the jets would be too small? The 18RC is a 2L right?

TrikeKid · Oct 23, 2007

Lespaulstandard said:
Anybody have jetting suggestions? Also, how far should the choke plate open up when hot?

Verticle, if yours doesn't, adjust it till it does. Loosen up the 3 screws around the housing, hold the throttle just a little open (enough to allow it to move easily) and adjust it till it's straight up with it hot/running.