Spider Injecter?
#43
06-24-2014, 07:34 PM
I just tested the truck again to confirm pressures and I got 65psi while fuel pump is running, immediately goes to 60psi after pump shuts off, dropped to 10psi after 10 minutes.
Tested at filter and got 105psi (Maxed my gauge out) with pump running then dropped to 85psi after 10 minutes. Then I tried at the rail again and got the same first 2 numbers then the psi dropped to 50psi after 10 mins. Not sure what is going on. Spider leaking out? Maybe that is causing it to pool the fuel in the intake and it won't start because it becomes "flooded"?
Tested at filter and got 105psi (Maxed my gauge out) with pump running then dropped to 85psi after 10 minutes. Then I tried at the rail again and got the same first 2 numbers then the psi dropped to 50psi after 10 mins. Not sure what is going on. Spider leaking out? Maybe that is causing it to pool the fuel in the intake and it won't start because it becomes "flooded"?
#44
06-24-2014, 10:10 PM
Pressure and leakdown at the filter is good. Great pressure and leakdown numbers! Which means the pump is capable of supplying more than enough pressure, and the leakdown is well above the minimun of 55psi.
Regulated fuel pressure at the service port of 65psi is great! The immediate drop to 60psi is to be expected. The drop to 50psi is "technically" a problem, but probably not what's causing the extended crank times. The drop to 10psi is a definite problem, and it might be related to the drop to 50psi. Something in the plenum is leaking, but not consistently. If you came up with the same regulated pressure each time, I doubt the regulator is the problem. AND, as long as you didn't crank the starter, the injectors were not opened, which pretty much rules them out, and the poppet nozzles, (if equipped).
Could be:
Leaky O'rings in the fuel metering block, (needs to be re-sealed).
Leaky spider line from the metering block to the poppet, (needs injector upgrade).
Leaky fuel pressure regulator, (comes with the injector upgrade). Regulators can leak internally and externally.
If any one or more of these leak, fuel can pool in the lower intake, and you may be spot on with causing it to flood.
Regulated fuel pressure at the service port of 65psi is great! The immediate drop to 60psi is to be expected. The drop to 50psi is "technically" a problem, but probably not what's causing the extended crank times. The drop to 10psi is a definite problem, and it might be related to the drop to 50psi. Something in the plenum is leaking, but not consistently. If you came up with the same regulated pressure each time, I doubt the regulator is the problem. AND, as long as you didn't crank the starter, the injectors were not opened, which pretty much rules them out, and the poppet nozzles, (if equipped).
Could be:
Leaky O'rings in the fuel metering block, (needs to be re-sealed).
Leaky spider line from the metering block to the poppet, (needs injector upgrade).
Leaky fuel pressure regulator, (comes with the injector upgrade). Regulators can leak internally and externally.
If any one or more of these leak, fuel can pool in the lower intake, and you may be spot on with causing it to flood.
#45
06-24-2014, 10:39 PM
Pressure and leakdown at the filter is good. Great pressure and leakdown numbers! Which means the pump is capable of supplying more than enough pressure, and the leakdown is well above the minimun of 55psi.
Regulated fuel pressure at the service port of 65psi is great! The immediate drop to 60psi is to be expected. The drop to 50psi is "technically" a problem, but probably not what's causing the extended crank times. The drop to 10psi is a definite problem, and it might be related to the drop to 50psi. Something in the plenum is leaking, but not consistently. If you came up with the same regulated pressure each time, I doubt the regulator is the problem. AND, as long as you didn't crank the starter, the injectors were not opened, which pretty much rules them out, and the poppet nozzles, (if equipped).
Could be:
Leaky O'rings in the fuel metering block, (needs to be re-sealed).
Leaky spider line from the metering block to the poppet, (needs injector upgrade).
Leaky fuel pressure regulator, (comes with the injector upgrade). Regulators can leak internally and externally.
If any one or more of these leak, fuel can pool in the lower intake, and you may be spot on with causing it to flood.
Regulated fuel pressure at the service port of 65psi is great! The immediate drop to 60psi is to be expected. The drop to 50psi is "technically" a problem, but probably not what's causing the extended crank times. The drop to 10psi is a definite problem, and it might be related to the drop to 50psi. Something in the plenum is leaking, but not consistently. If you came up with the same regulated pressure each time, I doubt the regulator is the problem. AND, as long as you didn't crank the starter, the injectors were not opened, which pretty much rules them out, and the poppet nozzles, (if equipped).
Could be:
Leaky O'rings in the fuel metering block, (needs to be re-sealed).
Leaky spider line from the metering block to the poppet, (needs injector upgrade).
Leaky fuel pressure regulator, (comes with the injector upgrade). Regulators can leak internally and externally.
If any one or more of these leak, fuel can pool in the lower intake, and you may be spot on with causing it to flood.
