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Author Topic: "fuel pressure regulator question  (Read 662 times)

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Offline Clay Pitkin

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"fuel pressure regulator question
« on: May 03, 2014, 11:20:56 PM »
Hi Guys,

I have a Mallory 4309 Fuel pressure regulator. Please tell me if I have it connected right or not:

Looking at the diaphragm with the press adjustment screw on top:

1. Bypass line - goes back to the fuel tank, or return line

2. In the middle of the diaphragm - This is the supply line that comes from the fuel pump

3. On the left side of the diaphragm this goes to the carbs

4. On the right side of the diaphragm this goes to my fuel press gauge.

Do these steps or descriptions sound correct?

Those who said it could not be done, should not stand in the way of those who are already doing it!

Offline 4-barrel Mike

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Re: "fuel pressure regulator question
« Reply #1 on: May 03, 2014, 11:27:10 PM »
Installation instructions for Mallory 4309:


Does this answer your question or is it the basis of the question?

Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!