New engine, real rich idle, FP regulator question

[disco stu]

I fired my engine last night and it runs pretty good, but it seems very rich. I dropped FP down to 37 static. And I dropped the idle fuel out of the ME-R sa far as I could go. My car has not run in a while, but the last time it did the Accufab regulator was fine. Now it does not drop fuel pressure with a vacuum reference. But when I put a vacuum on the regulator it holds it, no vacuum leak through the regulator.

On a side note with the 224/224 (110 LSA) I am still getting 17" of vacuum. I was suprised.

So, bad regulator? Where can I get the diaphragm disc for this thing?

 

[disco stu]

I called Accufab, they will not just sell be the diaphragm. They want me to sent it halfway across the country for a 2 minute job.
So I took it apart and inspected it. No varnish buildup, the rubber disk looks good, as does everything else.
Fuel pressure does go up with pressure, just not down with vacuum.

Why is it not dropping FP with a vacuum?!
I have checked my return line and it looks alright, not kinks etc.

 

[disco stu]

Ok, it was just that the regulator screw was all the way off the plunger and will not bypass anymore vacuum or not. at 43 static it will drop down to 37 referenced. My richness is in the P/N idle in Maxeffort. In drive it is fine. So in otherwords, nevermind.

:redface: