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... EGR, Diesel and Gas

14 messages,  Last post on Jul 28, 2008 at 7:59 PM

You are in the Diesels Forum.

What is this discussion about? Exhaust

Messages Page 2 of 2

#5 of 14 Re: ... EGR, Diesel and Gas [roland3] by roland3

Jun 15, 2007 (4:52 am)

Replying to: roland3 (Jun 11, 2007 5:54 pm)
... So I have to wonder what were these petrochemical engineers thinking circa 1970 ??? Of course it's God's cruel joke that heat and pressure that gives us economy and performance creates more NOx than cooler and contaminated combustion. We could inject water, naw have to worry about cold climes and another owner fill up. Inject argon or helium, naw too expensive. Run the cooling jacket 130 F. instead of 190 F. naw imcomplete combustion, (increased HC).
... So somebody(s) dreams up recirculating 15 percent of the exhaust gas. There was probably none or almost no consideration of the Diesel industry. A gas engine does not produce soot and this is probably the worst of Diesel related problems with EGR. The soot that has left the combustion chamber is (partially) brought back into the chamber and contaminates the process and wears upper cylinder components.

#6 of 14 Re: ... EGR, Diesel and Gas [roland3] by roland3

Jun 21, 2007 (11:43 am)

Replying to: roland3 (Jun 15, 2007 4:52 am)
... There might be some hope on the horizon. It appears that the new VW and Honda Diesels will not need urea injection, to be Euro V and USA 50 state compliant. This might be directly related to the small engines. I think we need more incentives to get these vehicles over the 50 MPG barrier. EGR should be the first to go. Why should these cars have the same controls as something getting 5 or 6 MPG (big trucks and buses). This is obvious when volume of GHG is considered.

#7 of 14 gas & diesel mixed by bobbye1

Apr 12, 2008 (8:15 pm)

Does any one know if four gallons of gasoline mixed with about fithteen gallons of diesel will harm my cummins diesel engine?
 
Dave

#8 of 14 Re: gas & diesel mixed [bobbye1] by kcram HOST

Apr 13, 2008 (3:59 pm)

Replying to: bobbye1 (Apr 12, 2008 8:15 pm)
In a word, yes. You had about 20% gasoline in there. The newer the engine, the worse it will be. The old fully mechanical 12-valve engine (used until Jan 1998) will survive if you can get the whole thing flushed and there was no residual damage in the cylinders, but the electronic engines - especially the common-rail versions - could need some serious and expensive repair.
 
kcram - Pickups Host

#9 of 14 Re: gas & diesel mixed [kcram] by bobbye1

Apr 13, 2008 (7:48 pm)

Replying to: kcram (Apr 13, 2008 3:59 pm)
It is the new 2007,if I drain the tank do you think i will be okay?It has about a half tank with the four gallons of gas.The engine seems to run okay with no problems.

#10 of 14 Re: gas & diesel mixed [bobbye1] by kcram HOST

Apr 14, 2008 (11:11 pm)

Replying to: bobbye1 (Apr 13, 2008 7:48 pm)
Don't turn that key again until it's drained. Running on that mixture can void your warranty. Have the truck towed if you don't have the facilities to do it at home. Once it's drained, use plenty of diesel treatment - I would recommend Power Service Diesel Kleen - for at least the next 4 tanks.
 
kcram - Pickups Host

#11 of 14 Re: gas & diesel mixed [kcram] by bobbye1

Apr 15, 2008 (11:04 am)

Replying to: kcram (Apr 14, 2008 11:11 pm)
Thanks for the info,I drained the tank & put in the Power Service Diesel Kleen.
Do you think I will have any side effects from running the gas that was in the tank?

#12 of 14 Re: gas & diesel mixed [kcram] by bobbye1

Apr 15, 2008 (11:06 am)

Replying to: kcram (Apr 14, 2008 11:11 pm)
Thanks for the info,I drained the tank & put in the Power Service Diesel Kleen.
Do you think I will have any side effects from running the gas that was in the tank?

#13 of 14 Re: gas & diesel mixed [bobbye1] by kcram HOST

Apr 15, 2008 (9:41 pm)

Replying to: bobbye1 (Apr 15, 2008 11:06 am)
Hopefully not. Gasoline can be downright dangerous in a diesel engine.
 
kcram - Pickups Host

#14 of 14 by hgivens1

Jul 28, 2008 (7:59 pm)

i have a problem with my 2005 ford powerstroke blowing out solid white smoke. Every time it starts doing it, it feels like its bogging down TOTAL power loss....EGR valve?? any sugg.?

Messages Page 2 of 2

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