STATIC fuel pressure...

[Schrade]

New fuel filter is on, and we checked static fuel pressure afterward; 16 PSI.

No leakdown. From 48 PSI the other day, it was at 45 PSI after 15 minutes+++...

Bled it off, and lit it up again: 18 PSI

No leaks at the pump lines, the filter, or at the guage connector...

 

[Schrade]

Bled off pressure, tried it again, and got the same.

No leaks. Filter isn't on backwards. Haven't checked the book for spec pressure, with only the Primary Power Switch engaged...


What does this guy do? He buzzes every 5 seconds, for 1 second. Does he influence primed pump pressure?

 

[John Robinson]

Is that a vacuum nipple on the front of that piece? Could it be a preassure regulator?

 

[Schrade]

That's possible Sir, that it's a vacuum nipple / port. I haven't had time to start reading FSM for it. (I should have just got another LT1 or L98 - THOSE I know).

Today, I got 47 PSI fuel right off the bat. Dynamic pressure held right at 47 - 48.

I don't know what spec pressure is for 'Low Engine Power', and for 'Full Engine Power' (with Secondary Fuel System turned on).

Anybody?