I recently installed the Weber 32/36 carb. I ordered adjustable regulator #31800.063 (1.5 - 20 psi) and installed it today. Now, neither the unit nor the instructions say which way to turn the adjustment screw to raise or lower the pressure, but whether I have it all the way out or all the way in, the gauge reads just above 5 psi (it's supposed to be set at 2-3 for this carb).

Tech support at Weber said they've never heard of this happening before (of course), and told me to send it back in. I'm planning on doing that tomorrow morning, but thought I'd see if any of you have ever observed this before.

Before anyone asks, yes I have the gauge between the carb and the regulator, and no I don't have the regulator installed backwards. Also, I was careful not to force the screw when it bottomed out so as not to puncture the diaphragm.

Any observations or ideas? Thanks very much.

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J.R.
Tucson, AZ
'68 Dart 270 with a '76-'80 engine

If its anything like a holley regulator. Loosening the screw lowers the psi. And I don't know how well those carbs work with sixes. But in the vw world they are terrible. They call them progressives because of the progressive 2ndaries. But they just in fact get progressively worse. Buy the way the thing was made for a pinto

What do you really mean about progressively worse?

Making sure to get real weber is the key, there were fakes ones out there.

Old used holley 2 barrel carbs that looks like weber is actually licensed copy of weber DFEV 32/36 and but in usual fashion of holley, did poor job of it for life-time span and keeping these maintained is poorer, idle jets not swappable.

Cheers, Wizard

I didn't touch it on Sunday, and when I went to start it Monday morning: ta da, it's working. It's a metal and rubber mechanical piece, as far as I know, so I don't know what changed between now and then. But I adjusted it, and it seems to be doing the job now. The only thing close to a guess that I can come up with is that there was, perhaps, air stuck in it - but I don't know if that would even matter.

Anyway, I'm in business now.

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J.R.
Tucson, AZ
'68 Dart 270 with a '76-'80 engine

I have been running a 32/36 for over 7 years now with NO regulator and have never had a problem with anything fuel related, starting, leaking, flooding, etc. I didn't even know that your supposed to use one, maybe I'm the lucky one? If you have problems in the future, remove it and see what happens.

I have the carb as stock on my currant driver, 1986 caravan with 2.2 and a five speed, I installed a Mr. Gasket regulator from local.
I decided to see how low I could go and when I dropped below 2 PSI (to the 1.5 PSI setting) the fuel mileage increased noticably.
It runs fine there, mine is the HOLLEY mentioned earlier and has a different style power valve I believe.

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Advise should be taken as ongoing, that way, when you get to realizing what you are doing you can include yourself.

@69a100...

I ran it for a few weeks sans regulator, but it it was sluggish and I was petrol-scented everywhere I went. Also put a big dent in my mpg. You might consider giving one a try. It's now performing more like it's supposed to, though I'm still getting it dialed in.

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J.R.
Tucson, AZ
'68 Dart 270 with a '76-'80 engine