CumminNotRunnin
Internet Mechanic
- Joined
- May 7, 2007
- Messages
- 1,090
First off I would like to thank anyone in advance for insight into this subject. I have exhausted a lot of time trying to figure it out. Please let me know if there is something I am missing.
Truck is a 2005 F-350 with a 12v Cummins in it. It is a 160Hp CPL 1968 CA Emissions Pump.
Customer came to shop wanted us to install 4k Gov springs and #8 fuel.
Time line of events-
Gov springs came off with 3 clicks and 5.5 revolutions reverse. Installed new springs. Installed 5.5 revolutions back in and 3 clicks.
Installed #8 fuel plate. Put injection lines back on primed system.
****Truck started right up and idled perfect right at 900-950Rpm. ***
Let truck idle for a min or two and gave truck a little throttle in park.
Truck began breaking up at like 1400-1500 rpm a little and cleared back up. (similar to an air bound injection line)
Let my foot off the throttle, truck dropped back to idle no problem and stayed idling. (900-950rpm)
Brought the RPM back up this time slower got to about 2600-2800rpm and it began breaking up again real bad. This time I let off the throttle (quickly)and the truck went right to zero RPM and shuts off.
Now I cant get its run at all: Not even sputter or try to start.
-Heavy white fuel smoke out exhaust (Like heavy fog white)
-Good supply pressure from fass
-Injectors when cracked have a good 10-14 inches of squirt coming from them
-Rechecked timing both TDC Pinning, Pump Pinning method as well as Dial indicator with drop valve method. Timing is dead on at 16.5 degrees,
-Opened AFC, the shut off arm in not stuck and is allowing the rack the travel.
-The fulcrum is rising when cranking and moves accordingly with throttle travel
-Intake horn removed to eliminate possiblity of air not making it through intercooler. No rags or anything in intake shelf.
-Truck will Ether ignite. (test to make sure air was going through Intake shelf
-Manual Cable shut down cable for shutdown as well.
I think this is most the information I can give or have obtained.
Is it possible the springs for this CPL are actually causing the truck to not run?
But why would it start then stop running?
Would Gov springs cause the truck to miss and skip the way it carried on?
Like stated I made sure the timing is still on because it certainly seemed like the timing slipped.
My next step tomorrow is to swap in the old springs and try again.
Thanks
Jake :bang
Truck is a 2005 F-350 with a 12v Cummins in it. It is a 160Hp CPL 1968 CA Emissions Pump.
Customer came to shop wanted us to install 4k Gov springs and #8 fuel.
Time line of events-
Gov springs came off with 3 clicks and 5.5 revolutions reverse. Installed new springs. Installed 5.5 revolutions back in and 3 clicks.
Installed #8 fuel plate. Put injection lines back on primed system.
****Truck started right up and idled perfect right at 900-950Rpm. ***
Let truck idle for a min or two and gave truck a little throttle in park.
Truck began breaking up at like 1400-1500 rpm a little and cleared back up. (similar to an air bound injection line)
Let my foot off the throttle, truck dropped back to idle no problem and stayed idling. (900-950rpm)
Brought the RPM back up this time slower got to about 2600-2800rpm and it began breaking up again real bad. This time I let off the throttle (quickly)and the truck went right to zero RPM and shuts off.
Now I cant get its run at all: Not even sputter or try to start.
-Heavy white fuel smoke out exhaust (Like heavy fog white)
-Good supply pressure from fass
-Injectors when cracked have a good 10-14 inches of squirt coming from them
-Rechecked timing both TDC Pinning, Pump Pinning method as well as Dial indicator with drop valve method. Timing is dead on at 16.5 degrees,
-Opened AFC, the shut off arm in not stuck and is allowing the rack the travel.
-The fulcrum is rising when cranking and moves accordingly with throttle travel
-Intake horn removed to eliminate possiblity of air not making it through intercooler. No rags or anything in intake shelf.
-Truck will Ether ignite. (test to make sure air was going through Intake shelf
-Manual Cable shut down cable for shutdown as well.
I think this is most the information I can give or have obtained.
Is it possible the springs for this CPL are actually causing the truck to not run?
But why would it start then stop running?
Would Gov springs cause the truck to miss and skip the way it carried on?
Like stated I made sure the timing is still on because it certainly seemed like the timing slipped.
My next step tomorrow is to swap in the old springs and try again.
Thanks
Jake :bang
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