Took the boat out to the lake for a shake down with fuel pressure gauge. I have fuel pressure at over 40 at idle, from the hole shot she wants to bog down. Pressure slightly dips to about 35 but comes right back up. She idles good sometimes and like **** other times. Ran about 15 gal of fresh...
It is kit is from "emp" I just got off their website I thought it was quicksilver. It appears to be theirs but says it replaces the merc part number Mercury 8M0125852 | 861156A03. I'm not getting fuel to Schrader valve, just air. I may go buy another gauge but this one was brand new.
Also on...
Me again! Correct regulator installed, correct hpfp installed.
Can't get above 20 psi with many k.o cycles. Pressure holds steady when it does get there. Thoughts?
Bad fuel pump out of the box from quicksilver?
Pump/cooler kit installed
Fuel Cooler & Pump Kit | EMP 1397-97004
SKU...
So I have now installed the new fpr. Key on engine off I can only make 24psi. I am sure I have the correct fuel pumps and the 43psi regulator. I have by passed 5
807952A1 REGULATOR KIT (Mercury Marine) $169.49 Is what I just installed 🫠 dammit I feel dumb today! Guess I get to pull the cooler...
So I have now installed the new fpr. Key on engine off I can only make 24psi. I am sure I have the correct fuel pumps and the 43psi regulator. I have by passed the boats fuel tank completely and have a line from a gas can directly from a 2 gal can connected to first pump.
Any ideas?
Correct pump is installed along with new copper cooler.
I am still not getting more than 10 psi at rail with my gauge.
Is there a specific bleeding procedure after having all those lines disconnected?
I have keyed on and off 50 times.
i have also tried pinching the return line from FPR mounted...
I am able to build 10psi of fuel with pump above fuel water separator disconnected as you described. Leaning towards vapor lock or bad out of the box pump?
