This is unfortunately very likely with newer common rail systems. The 20k+ psi injection pressure and small orifices are much more likely to get damaged by fuel contaminants. I have been through this with bosch pumps and common rail injectors on road. My last problem was about 5k and virtually every high pressure component in the system was replaced.
It seems like Detroits and other lower pressure, mechanical injected motors are more resilient to bad fuel though which is nice. Regardless, id rather have a secondary pump and filter system take that hit and not use the primary engines as a cleaner if possible.
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Thread: Fuel tank pump out
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06-19-2018 12:28 PM #21
Re: Fuel tank pump out
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Re: Fuel tank pump out
Your problem was EPIC!
I had a relatively minor contaminant issue a couple of years ago with fuel in my fwd (aux tank); I ran it dry. I felt I needed to agitate the tank to get the sludge at the bottom moving. After filling the tank, I let it sit a day and then opened the filler cap. I took the fuel line loose entering the Racor and introduced some shots of compressed air. Holding the line over a bucket, the line rapidly surged bringing with it all manner of crap. I repeated a coupe of dozen times until the crap tapered off and let set for the rest of the day. When I repeated the process the next day, I got just a bit of junk. In total, I may have wasted 3 gallons of fuel.
Removing the filler cap assured me of no pressure damage to the tank. A full tank assured me of maximum force pushing through the line to the bucket. I installed a 10 micron filter and ran off that tank the next day. I had just a bit of junk in the bowl at the end of a full day underway. I swapped filters again and end of story.
My experience wouldn't have helped you, but maybe it'll help someone with a less catastrophic experience. That must have been a nightmare.Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC