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

studs vs studs+oring

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  #11  
Old 10-06-2009, 11:25 PM
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Originally Posted by mysterync
As Andy will tell you, and as he said in his post. It's not just about the boost pressure, It's about timing and drive pressures as well!
very good point. its chamber pressure not boost pressure that lifts the head.
 
  #12  
Old 10-06-2009, 11:36 PM
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well im 19 and i rebuilt my engine in my garage
 
  #13  
Old 10-06-2009, 11:41 PM
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i started my project around my 16th birthday. now i'm almost 19 and its kinda done.

LOL
 
  #14  
Old 10-07-2009, 12:14 AM
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ive almost had my truck a whole year...bought it with 238,000 and it currently has 260,000 on it so... i drive alot
 
  #15  
Old 10-07-2009, 10:17 AM
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I'm gonna take a stab at this one tryin to use a little common sense based on the subject here. When you "wash out a cylinder", does that mean the head lifts off the block enough to not necessarily blow the head gasket but allows the cylinder to fill with coolant? If I'm wrong can somebody explain it to me?
 
  #16  
Old 10-07-2009, 07:41 PM
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i beilve its so much pressure in the cyl that it blows right by the piston rings. but i could be wrong too i got my info second hand a long time ago from an old engine builder.
 
  #17  
Old 10-07-2009, 11:11 PM
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washing out sounds like too much fuel and you ruin your rings....just a shot in the dark though
 
  #18  
Old 10-07-2009, 11:45 PM
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Originally Posted by 12valvetater
well im 19 and i rebuilt my engine in my garage
x2 20 years old and rebuilt my engine in my shop last winter, 4k worth of crap

---AutoMerged DoublePost---

Originally Posted by YOUNG GUNS
washing out sounds like too much fuel and you ruin your rings....just a shot in the dark though
yes washing out the cylanders has to do with to much fuel that it just forces it past the rings
 

Last edited by 94cummins12v; 10-07-2009 at 11:45 PM. Reason: Automerged Doublepost
  #19  
Old 10-13-2009, 09:34 PM
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yes washing out the cylanders has to do with to much fuel that it just forces it past the rings
with my mods can i wash em out?
 
  #20  
Old 10-13-2009, 10:15 PM
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i havent heard of wash out problems (i'm sure there's more) other than extensive low rpm idling, lugging, extended crank time and REDICULOUS fueling... something a sled puller would be modded for. washout is as simple as it sounds... the diesl fuel dilutes the oil film on the cylinder walls increasing friction and wear. actually i've read in principle; the design of a piston ring will increase how well it seals through pressure differential; low crank case pressure and high chamber pressure results in a better seal.
 


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