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

help with new injectors please

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  #11  
Old 07-29-2013, 12:08 PM
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We can pin out the holes to give you an idea of what HP the old injectors are if you still have them.
 
  #12  
Old 07-30-2013, 03:37 AM
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There may be something to tweaking the pump... I really didn't feel I got much out of my current injectors till I turned up the pump.

BTW: Timing was already advanced when I got it with stock injectors.
 

Last edited by u2slow; 07-30-2013 at 03:47 AM.
  #13  
Old 07-30-2013, 10:53 AM
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Every time you change a component, you have to re-tune the injection pump so it will work properly with the changes. If you don't, It may run okay or it may run in a damaging manner. But it will never run right.
 
  #14  
Old 08-16-2013, 08:11 PM
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Thats good advice right there. Iam always changing somthing and cougar is right you have to go back & retune it untill you feel comfortable with the results.
 
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