Welcome to the Colorado AR-15 Shooters Club Discussion Forums.
No insult or disrespect intended, I was going by memory and did not scroll down to get it perfect.Originally Posted by mcantar18c
Atta boy.
Now just one question. How do you manage to spell my name wrong when its written right the f*ck in front of your face?
The way I'm reading it in that article, is "jet-jet" refers to where the jet mixes with itself after bouncing off the bowl (the "jet-wall interaction").
No insult or disrespect taken, just thought it was funny.
Jet-jet must have something to do with the newer generations of piezo injectors that are pumping out that massive amount of pressure. like some form of blow back hitting the jet stream before the injector closes thus vaporising more. Still guessing though...
Since diesels are direct injected, I believe jet refers to the high pressure fuel stream entering the combustion chamber. Seems what they are talking about is how the bowl in the piston creates lean and rich pockets. Soot control is affected based on the design of the bowl ie. large or small bowl. The fuel injector has nothing to do with pressure, it is simply a valve and a nozzle. The injection pump and computer (modern diesel) are what controls pressure.
Diesels are compression combustion engines, no spark plugs. The mixture needs heat to ignite, that is where compression comes into play. It creates the heat necessary to ignite the mixture. If the jet of fuel coming into the chamber is not mixed correctly, it will cause uneven combustion and soot will start to build up on the piston. Also engine efficiency will suffer.
Most diesel engines have oil "jets" spraying the bottom of the piston to keep them cool. Otherwise the piston will melt down, and from what I understand, decrease soot deposits even further on the piston.
Hope this helps.
$42k?!???! Holy sh*t!! We can get a complete ISX (450) direct from cummins for $21k.
-Mike
"I have to return some video tapes"
Was it a regen isx? Think it is about 26k for Reman 18 hrs of tear down at 125 bucks an hour. Plus another 40 hours for a swing needs a dpf and catalyst at 4k radiator because when it let loose it put metal into the cooling system at about 2000 in parts
You sir, are a specialist in the art of discovering a welcoming outcome of a particular situation....not a mechanic.
My feedback add 11-12 ish before the great servpocaylpse of 2012
Yep, post 07 ISX, usually don't need to worry about tear down when it sounds like that though.
-Mike
"I have to return some video tapes"
Hmm now I need to double check the prices
this is a warrenty gig so they wanted it apart for diagnosing the failure. Thought UPS ran those Mack monstrosities
You sir, are a specialist in the art of discovering a welcoming outcome of a particular situation....not a mechanic.
My feedback add 11-12 ish before the great servpocaylpse of 2012
We still have quite a few Mack's, most of our new(er) stuff has been international's with either the ISX or S60's.
-Mike
"I have to return some video tapes"
Posting Permissions
Reply With Quote