5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

Super b special

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  #11  
Old 05-04-2014, 07:46 PM
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It's been awhile since I adjusted a star wheel, if I remember right, looser the spring the more boost pressure it's going to take to move the afc foot. Correct?


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  #12  
Old 05-04-2014, 09:36 PM
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Originally Posted by dieseldemon61
It's been awhile since I adjusted a star wheel, if I remember right, looser the spring the more boost pressure it's going to take to move the afc foot. Correct?


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Negative, the looser the spring less pressure it takes to move the foot
 
  #13  
Old 05-05-2014, 04:41 AM
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Hmm I remembered wrong then haha, I know the pre-boost screw is in too far. Once I adjust that I'll have to play with the star wheel


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  #14  
Old 05-07-2014, 11:27 AM
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Well I tinkered with the preboost screw a little on my lunch break..I'm gonna have to pull the afc off and look at it further. It felt like the screw was backed away from the foot a good bit.


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  #15  
Old 05-07-2014, 11:59 PM
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Lagging or is it smoking ??
 
  #16  
Old 05-08-2014, 04:30 AM
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I'd say laggy. Just because even driving on the interstate, if I let off the fuel and get back into the throttle it will dump smoke out until the turbo lights. The injection pump is putting out about 450cc's. think I might have to cut the fuel back? It had a zero plate in it now.


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  #17  
Old 05-09-2014, 11:08 AM
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screwing the pre boost screw in allows more pre boost fuel ... to me it sounds like you need to loosen the preboost or slide the housing back.
 
  #18  
Old 05-09-2014, 11:14 AM
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I didn't try sliding the housing back yet, I tried backing the pre-boost screw out a good bit and it didn't change much


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  #19  
Old 05-09-2014, 03:01 PM
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the afc arm is prob back as far as your washer set up allows the foot to go
 
  #20  
Old 05-11-2014, 11:13 PM
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Is your Turbo Wastegated ?
 


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