Random thought on Flames.....
Senior User
Joined: Dec 2005
Posts: 491
Likes: 0
From: NJ
vloney, thank for the info and incite into this matter. i think you a great idea of what is going on here.
as far as my comments to astrovan, they were made to be funny, and not thought of as a personal attack. the dude posted the same message like 10 times in all different threads. i just wanted to bust on him.
as far as my comments to astrovan, they were made to be funny, and not thought of as a personal attack. the dude posted the same message like 10 times in all different threads. i just wanted to bust on him.
Senior User
Joined: Aug 2001
Posts: 300
Likes: 0
From: Kentucky
Originally Posted by Maxium4x4
I think we need to be gentlemen and keep to the subject at hand instead of speculation and some border line personal attacks. I will not let this happen if your so inclined to do so.
Vloney has answered the question of how and why the regeneration cycle has caused concern which Ford has addressed and is taking action.
Vloney has answered the question of how and why the regeneration cycle has caused concern which Ford has addressed and is taking action.
Bill in KY
Postmaster
Joined: Feb 2006
Posts: 3,201
Likes: 4
From: waynesville, mo.
Originally Posted by dapgar
what amazes me is the amount of fuel it must take to reach the end of the exhaust and still produce a flame that big.
i've never seen anything like that. i doubt it has anything to do with the particulate filter in the exhaust, it's gotta be engine related.
i've never seen anything like that. i doubt it has anything to do with the particulate filter in the exhaust, it's gotta be engine related.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Originally Posted by vloney
The piezo injectors have a whopping 2 moving parts in them. The piezo part is kind of like little ceramic discs stacked up. When you put current to them, they distort, pushing the mushroom valve (moving part one) letting fuel enter. The other part is the pintle (it is almost as long as the injector). The piezo injector is capable of multiple injection events per stroke. It is commanded by the pcm (both during regular injection events, and during regen). If you adjust injector timing, duty cycle, and sensor readings, this problem should be easily repaired. As with the 6.0, the only way to make these adjustments on a 6.4, is with a reflash.
Last edited by David85; Mar 24, 2007 at 10:01 PM.
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
wonder how the turbine bearings and motor oil cooling the turbine bearings like the regen cycle high temps
the exhaust side impeller must run white hot during regen
I've decided to pass on one of these engineering marvels until they have a couple years under the hood. Won't want to be #15 on the Shuttle with 5 second shutdown and a 50 ton Peterbilt CAT screaming down the mountain behind me on North Cascades or Beartooth
the exhaust side impeller must run white hot during regen
I've decided to pass on one of these engineering marvels until they have a couple years under the hood. Won't want to be #15 on the Shuttle with 5 second shutdown and a 50 ton Peterbilt CAT screaming down the mountain behind me on North Cascades or Beartooth
Junior User
Joined: Dec 2006
Posts: 60
Likes: 0
Its interesting to see how they have dealt with making a engine cause less pollution, they didnt make a motor run more efficiently they made the exhaust system burn unburned fuel by adding more fuel to it so you get less MPG. Remember the old style burners in your furnaces? How they would use more oil to produce the same heat as todays units do on a lot less oil? well what are the engines doing? Enginners need to design better cumbustion chambers that dont let so much unburned fuel into the exhaust system. Hydrogen is the way to go
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
what Ford needs to come up with is a PCM programming that does not allow more than 5 minutes of idling at less than 1000 rpm and more than 10 minutes of idling at below 1500 rpm, otherwise it kicks out of gear in auto and rpm up to 1800 and holds there until brake released, put in gear and throttled up and moving....
also change low speed in town shift algorithm to hold in lower gear and keep rpms above 1800 while moving...move shift points to 3000 rpm unless exhaust temps above 1k d F.
total fuel flow shutoff when foot comes off pedal in coast down
on manuals, lockout low rpm shifts below 2.5k rpm
injecting raw diesel in on the exhaust stroke is dangerous, stupid and wasteful
also change low speed in town shift algorithm to hold in lower gear and keep rpms above 1800 while moving...move shift points to 3000 rpm unless exhaust temps above 1k d F.
total fuel flow shutoff when foot comes off pedal in coast down
on manuals, lockout low rpm shifts below 2.5k rpm
injecting raw diesel in on the exhaust stroke is dangerous, stupid and wasteful
Last edited by 96_4wdr; Mar 25, 2007 at 11:08 AM.
Senior User
Joined: Feb 2007
Posts: 495
Likes: 6
From: Snohomish, WA
Originally Posted by G & L
they didnt make a motor run more efficiently they made the exhaust system burn unburned fuel by adding more fuel to it so you get less MPG.
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Senior User
Joined: Dec 2005
Posts: 491
Likes: 0
From: NJ
un burned fuel is not being dumped out the exhaust, at least not on purpose. ford wouldn't be allowed to do such a stupid thing. it may be happening in a few, but that is a failure of something causing it.
ford is faced with a lot of epa guidlines and i think they have done a good job at keeping the numbers up for the competitors but also keepign withing the guidlines of the epa. not an easy thing to do, but easy for us on the net to sit and think we know how to do it better.
let's just let them figure it out in the coming weeks. they seem like isolated incidents.
ford is faced with a lot of epa guidlines and i think they have done a good job at keeping the numbers up for the competitors but also keepign withing the guidlines of the epa. not an easy thing to do, but easy for us on the net to sit and think we know how to do it better.
let's just let them figure it out in the coming weeks. they seem like isolated incidents.
Elder User
Joined: May 2006
Posts: 586
Likes: 1
From: Billings Mo
Originally Posted by vloney
The video they are talking about, shows a truck in the parking lot at idle with flames showing. The flames aren't very intense at first, then he starts to drive away causing a higher volume of exhaust and flames. After the excess fuel is burned off, the fire stops. The regen cycle happens when there isn't enough heat in the exhaust to burn particulates. If you constantly run it at operating temperatures, it may never go into regen. The effected vehicles were built at the kentucky plant (the other is in indianapolis) between job #1 and march 9. So, you can see, its not all of them. If we were to believe some people, they would have you to believe every 6.4 was dropping like flies
Maybe a flash IS all thats required.
Gunner15a