stock lift pump

[1911 guy]

Hey i was just wondering what the pressure for a stock LP should be? My big pump just went out and i had to revert back to my stocker while its being exchanged. Any way im only seeing 5psi from the stocker, seems very low to me.

 

[triton]

edit:

this is the info for the newer common rail.... don't know that it applies to your though. Figured it might help though....

Rail Pressure
3.9 liters [238 C.I.D.] and 5.9 liter [360 C.I.D.] Engines Without EGR....................250 to 1400 bar [3626 to 20,305 psi]
5.9 liters [360 C.I.D.] Engines With EGR....................250 to 1600 bar [3626 to 23,206 psi]
4.5 liters [275 C.I.D], and 6.7 liters [409 C.I.D.] Engines without EGR....................250 to 1600 bar [3626 to 23,206 psi]

Fuel Pressure Range at Fuel Filter Outlet (engine cranking)
With gear pump only (no electric lift pump)....................303 to 1103 kPa [44 to 160 psi]
With electric lift pump....................0.0 to 0.8 bar [0.0 to 11.6 psi]

Fuel Pressure Range at Fuel Filter Inlet (engine running)
With gear pump only (no electric lift pump)....................503 to 1303 kPa [73 to 189 psi]
With electric lift pump....................0 to 80 kPa [0 to 11.6 psi]

Maximum Pressure Drop across Fuel Filter
With gear pump only (no electric lift pump)....................200 kPa [29 psi]
With electric lift pump....................34 kPa [5 psi]

Maximum Fuel Drain Line Restriction....................19 kPa [2.7 psi]

Maximum Fuel Inlet Temperature....................70°C [158°F]