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

newbie looking for help

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  #21  
Old 09-30-2011, 07:32 AM
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Originally Posted by coeboy
ok gauges are in. just got done reading the fuel pump sticky and i dont know what i need to do?? should i start here Low manifold pressure (boost) fuel delivery adjustment.
I haven't looked at that stickey lately, but that sounds like the smoke screw. Just FYI, the smoke screw and starwheel adjustments are pretty much useless once you turn up the full power screw or install bigger injectors. I would view them as nothing more than distractions when it comes to real power mods.

I'd start by turning the cone to the deep profile and go from there.
 
  #22  
Old 09-30-2011, 07:11 PM
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ok ive read and reread the turn up the fuel sticky and by what i can figure i need to turn the full power screw 1-2 turns then adjust the smoke screw to get less smoke at low rpms? im i in the ball park here?

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also got gauges in today putting out 22 max boost at bout 55-60 mph pyro gauge reads 1000 thats putting to the floor. just riding down the road bout 5 boost and 700-800 on pyro are these good for a stock truck?
 

Last edited by coeboy; 09-30-2011 at 07:11 PM. Reason: Automerged Doublepost
  #23  
Old 09-30-2011, 08:17 PM
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Pretty much. My smoke screw is turned all the way out, i.e. flush with the top cover - not doing anything. Did you turn the cone so the guide pin rides on the deepest part?

These things are fun to play with once you figure them out.
 
  #24  
Old 09-30-2011, 08:58 PM
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still trying to figure out where the cone is located. looking in sticky at pics but i cant put what ur saying and what there saying together.

is it on top of pump it has 4 standerd head screws take that plate off and it is in there with the star wheel??
 
  #25  
Old 09-30-2011, 09:16 PM
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Yup. Carefully pull the boost line banjo bolt from the back of the AFC cover, taking care to not loose the two little copper washers. Pull the top of the AFC off, lift the diaphragm, and rotate the pin so that the most offset portion of the cone is toward the front of the truck. (so that the little plunger deep inside the pump will protrude into the fuel cone bore the most.) Re-assemble. Carefully torque the bango bolt, its thin and can be broken if over torqued.
 
  #26  
Old 09-30-2011, 09:21 PM
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banjo bolt?? where is that??

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it seems i need my turbo to spool up faster i think?? i need more bottom end pull seems to take my truck just a little to get started
 

Last edited by coeboy; 09-30-2011 at 09:21 PM. Reason: Automerged Doublepost
  #27  
Old 09-30-2011, 09:31 PM
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On the back of the AFC cover. Its the very top part of your injection pump. There is a signal line that comes off your intake manifold and goes into the top of your pump. The bolt that goes into the top of the pump, through that signal line, is the bolt I'm referencing.

---AutoMerged DoublePost---

Maybe this will help.

fuel pin location and modification - Dodge Cummins Diesel Forum
 

Last edited by bgreen776; 09-30-2011 at 09:31 PM. Reason: Automerged Doublepost
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coeboy (09-30-2011)
  #28  
Old 09-30-2011, 09:41 PM
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ok i got it now its all under that cap with the 4 screws. no problem. instead of the grinding is this where the denny-t pin comes in? also 1 last thing the full power screw on back of pump should i turn it to? the one that has the cap and lock nut on it? thanks bgreen you have been a great help!!
 
  #29  
Old 09-30-2011, 09:51 PM
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yup, thats where the denny t pin goes.

Turning up the pre 94 Ram diesel injector pump

http://issuu.com/rswords/docs/bosch_ve_manual

one more

https://www.dieselbombers.com/dodge-...mp-videos.html
 

Last edited by bgreen776; 09-30-2011 at 09:54 PM.
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  #30  
Old 09-30-2011, 10:02 PM
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ok thanks again you have been a big help
 
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