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

4k GSK Pump Plug Nightmare, Help please

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  #11  
Old 06-09-2013 | 06:54 PM
Thelast12v's Avatar
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From: TX
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Originally Posted by mysterync
I would be looking for a leak or a kinked draft tube before I got too excited. Instant blow by is fairly rare. Its possible something happened to a piston ring just by coincidence, any time you modify a vehicle beyond stock parameters failures are possible. Rare but possible. Didn't drop anything in the pump did ya? No new oil leaks?

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Nope, I was like a heart surgeon with the magnet, didn't drop anything. It drips one or two drops after I shut it off, but nothing more. Like I said, I took all precautions with the modifications. Like I said it ran fine after I adjusted the gvt springs the second time, took it out for a test drive, and after driving about 2 miles, it went back to the low idle and dying. That's when I checked for blowby and it was smoking, continued to smoke just a little even after I turned the truck off from the oil fill tube. Like I said, not a "puff puff" with the engine pulse. It smoked like someone dropped a cigarette..or 5...into the oil fill hole. I'm taking it to the shop tomorrow. I'm really worried. The truck is absolutely beautiful mint condition, but I spent a lot of time and money getting it there, if I blew up the engine...I'm toasted.
 
  #12  
Old 08-18-2013 | 09:09 PM
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i think you are really getting worried over nothing. i have owned 2 12v's an they both do this. 90% of boosted motors have blowby. cummins is a great motor, an very strong.
 
  #13  
Old 08-18-2013 | 10:29 PM
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i dont think you caused any problem.
 
  #14  
Old 08-18-2013 | 10:52 PM
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From: Da' Dirty South
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Originally Posted by mysterync
As Benji said, might adjust idle and if that doesn't help tighten the exact amount on both sides. If their to tight they'll cause a very touch throttle pedal. Make sure you go from the top. Much much less frustrating.
FYI, I installed a set of springs the other day and tightened them 1-2 clicks over stock and the idle was low. the guy liked the touchy throttle, so instead of loosening the springs i upped the idle to 850RPM in gear with the A/C on. guy was happy.

the outer spring is what controls Idle, and since it is stock, if you go any tighter than stock it lowers the idle as it causes the governor to back off fuel.

ANYWAY, carry on.... again, the GSK did not cause excess blowby.....
 
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