1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

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Old Nov 2, 2009 | 09:01 PM
  #11  
muskrat's Avatar
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sorry, what pump are you running?
 
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Old Nov 2, 2009 | 09:02 PM
  #12  
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Diesel Bomber
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just the stock 93 rotary pump. i dont know the exact model number
 
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Old Nov 2, 2009 | 09:04 PM
  #13  
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AH... Yeah like 4 -7 psi.
 
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Old Nov 2, 2009 | 11:05 PM
  #14  
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Originally Posted by tltruckparts
if i disconnect the belts it starts right up
How does it run without the belt? Thats kinda strange
 
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Old Nov 3, 2009 | 05:27 AM
  #15  
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MAYBE A FAILED BEARING ANY STRANGE NOISE?
 
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Old Nov 3, 2009 | 02:55 PM
  #16  
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well i got it started. there was just enough air in the injector lines to make it not start with the load of the belt on it. but now i got it running again its blowing a ton of white smoke out of the exhaust. it happens during idle or rev as well. and it is running rough and after about 10 seconds of idle or so itll die but then it fires right back up again. is this just a sign of air still in the system?
 
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Old Nov 3, 2009 | 03:46 PM
  #17  
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Yes, there is probably more air in the lines.
 
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Old Nov 3, 2009 | 03:57 PM
  #18  
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whats the easiest way to clear the air. just let it run or do i need to keep cracking the injectors
 
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Old Nov 3, 2009 | 04:05 PM
  #19  
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crack the injector lines. One at a time
 
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Old Nov 3, 2009 | 04:05 PM
  #20  
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Try cracking injectors until you get a steady flow of fuel starting furthest injector from the pump and work toward the pump. when I started messing with my pump, I ended up with a butt-load of air in my system and it ran the same way. I just had to bleed it all out and then it ran fine. How'd so much air get in? Any leaks?
 
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