Blocking of EGR
Submitted: Tuesday, Jan 30, 2007 at 10:21
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Member - Stephen M (NSW)
Any one interested in reading a heap on blocking the EGR Sorry dont know how to shortcut it but copy and paste into web browser works fine
http://users.on.net/~aschulze/The%20Impact%20of%20Exhaust%20Gas%20Recirculation%20on%20Diesel%20Engines.pdf
Steve M
Reply By: Leroy - Tuesday, Jan 30, 2007 at 11:20
Tuesday, Jan 30, 2007 at 11:20
too many words but it looks like egr is not a bad thing from the conclusion.
Leroy
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Reply By: Member - Phil G (SA) - Tuesday, Jan 30, 2007 at 13:50
Tuesday, Jan 30, 2007 at 13:50
Well, that explains why they DO it.
The following explains why we UNDO it:
1HD-FTE EGR problems
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Follow Up By: Jack79TD - Tuesday, Jan 30, 2007 at 14:58
Tuesday, Jan 30, 2007 at 14:58
G'day Phil
Do you know of any real gains to be made with the 1HD-FTE by blocking off the EGR other than preventing the above problems? Any downsides that you are aware of?
Thanks
Jack
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Follow Up By: Member - Phil G (SA) - Tuesday, Jan 30, 2007 at 16:49
Tuesday, Jan 30, 2007 at 16:49
I am not aware of any downsides as far as the motor goes. The EGR is purely there for emission control.
The photo with all that carbon was
mine - at 80k. It took a lot of effort to clean it out and the motor has performed better and delivered better economy since, and its just ticked over 100k.
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Follow Up By: Member - Stephen M (NSW) - Tuesday, Jan 30, 2007 at 17:48
Tuesday, Jan 30, 2007 at 17:48
Hi there Phil,your pictures and explanations was a lot easier to understand then all that mumbo from the other 10 pages of high tec talk. Thats not a good
sign, is it ??? to have so much build up at such short klms on your vehicle. Obviously all these vehicles with the same motor will be looking the same I would imagine. So how often are you required to do as you have done and clean it all out before it does some serious damage ?? Or is it some thing that will only be done when the vehicle owner notices it running shi@house was this the case with you or did you just do some probing around and come across it ?? Steve M
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Follow Up By: Member - Phil G (SA) - Tuesday, Jan 30, 2007 at 21:00
Tuesday, Jan 30, 2007 at 21:00
Steve,
I have a few mates with 1HD-FTE 78/79series who have all followed the advice of the LCOOL article and inactivated their EGRs.
One had a 2005 model and had a look at 35k, and said there was lots of carbon in there too. So he's cleaned it up and doctored the EGR, so it's no longer active.
I thought my vehicle was a touch underpowered; it was blowing a bit of black smoke when I floored it while offroading in sand - other vehicles didn't do that; and fuel comsumption was about 1 l/100k worse than mates with identical vehicles. No major problem, but it wasn't perfect.
Then George at LCOOL published that article. After doctoring the EGR, its all good again. It sounds a bit better and the turbo whistle is audible again.
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Reply By: Snowy 3.0iTD - Tuesday, Jan 30, 2007 at 14:01
Tuesday, Jan 30, 2007 at 14:01
So in a nutshell other than reducing NOx emissions the EGR has no positive effects on your engine and in the less advanced versions will decrease fuel efficiency and increase heatload. Interesting that one of the world leaders in diesel engines, Caterpillar have ditched EGR technology as a means of meeting emission requirements.
Snowy.
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