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

Turns on the pump

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Old Jan 26, 2010 | 11:34 AM
  #11  
NadirPoint's Avatar
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Originally Posted by Begle1
After a while you realize that pyros fake and lie like women.
Actually, they're pretty darn accurate. The trick is to understand the factors that influence that reading WRT the tuning and fueling issues in your your specific engine like you went on to describe, Begle.

Now when you gonna get a real GF and stop hatin' on the femmes?
 
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Old Jan 26, 2010 | 12:33 PM
  #12  
tltruckparts's Avatar
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Originally Posted by NadirPoint

Now when you gonna get a real GF and stop hatin' on the femmes?
...........
 
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Old Jan 26, 2010 | 01:01 PM
  #13  
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Originally Posted by Begle1
Pyros are helpful when towing or going up a hill; you definitely don't want to sustain temperatures above 1200-1300 degrees. But for short bursts these engines are pretty forgiving.
FWIW; Cummins rates the earlier (1st gen) 12v CTDs: 100% duty cycle at 1200*F (preturbo) EGTs. 1250*F for the newer 12v.
 
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Old Jan 26, 2010 | 06:27 PM
  #14  
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Originally Posted by BC847
FWIW; Cummins rates the earlier (1st gen) 12v CTDs: 100% duty cycle at 1200*F (preturbo) EGTs. 1250*F for the newer 12v.
My '90 factory service manual states "1300 degrees" as maximum exhaust gas temperature. I've held mine right at 1200 for hours on end.

Originally Posted by NadirPoint
Now when you gonna get a real GF and stop hatin' on the femmes?
I don't hate women, I'm just naturally against the concept.
 
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Old Jan 26, 2010 | 10:07 PM
  #15  
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i'v held mine at 1300* for quite a wile while towing my F-150 up to rausch creek to go fourwheeling..... it's a long uphill. with lots of sharp turns.
 
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