12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

still no start,I WILL PAY for your time!

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  #31  
Old 11-11-2009, 04:49 PM
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Where are you? Your almost at the point where you have to bring in some professional help. I dont know where you could call to talk to a "qualified tech". Never seen anything like that.

We can only diagnose and help so much over the internet.
 
  #32  
Old 11-11-2009, 05:17 PM
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Without being there with you and seeing exactly what is happening, my advice can only go so far.
 
  #33  
Old 11-11-2009, 09:27 PM
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Originally Posted by 12valvetater
Without being there with you and seeing exactly what is happening, my advice can only go so far.
not just your advice: everyones advice. there's a number of guys on here that could probably get ya set up in an afternoons time if they were close enough. i'm going to re-read through everything and see if something "clicks"

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have you put pressure on the accelerator pedal while cranking? if your idle adjustment is wayyy low your truck wont even think of starting; if the rack is drawn back far enough idk if it'll even push fuel as port closure really doesnt exist if the plunger is rotated to such a shallow point in the helix that the relief port is never covered up in order to create pressure.

---AutoMerged DoublePost---

another thing to check; the DV's are one way check valves... this should allow relatively low pressured fuel to flow out the pump and past the DV. pressurize the fuel system and rotate the engine by hand. fuel should actually flow freely as it spills into the chamber upon port opening. pressurizing the whole fuel system to say... a regulated 7 psi would greatly help in this. while rotating the fuel should be displaced and shot out the DV. if this doesn't happen manually move the governor arm to move the rack, this'll delay port opening and increase the effective stroke of the plunger (same thing as putting slight pressure on the accelerator)
 

Last edited by tower_ofpower; 11-11-2009 at 09:27 PM. Reason: Automerged Doublepost
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