Reply With Quoteyeah, sometimes
ChatterBox
SubscriberDon't listen to him.
Thanks Dave for the kind words and explanation.
I was in Alice Springs 2 weeks ago and had Kayes D2 TD5 serviced at the LR dealer before returning home. Had a chat to the mechanic who also mentioned crap in the inlet. He suggested cleaning the inlet pluming with degreaser. He also noted that dust had got past the air filter and mentioned one good point of all the oily crud was that it acted as a secondary filter and helped protect the engine. Any way he cleaned it up and the power and fuel consumption has improved markedly. I didn't realise how much performance had been lost, I'd just put it down to towing the van (1500 Kg tare). Fuel consumption improved from an average of 18.5 l/100k to around 14.5 l/ 100k at 100 kmh. Nothing to do with EGR's, and perhaps more to do with cleaning around the MAF sensor, but certainly shows the difference a clean unrestricted airway makes.
Deano
RoverLord
yeah, sometimes
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
If you think you're in front on the deal, pay it forwards.
TopicToaster
Dave,
I was not having a go, I was just amazed at how much you are able to type. No further questions, yet!
Wizard
from all this i hope that people that dont no much about cars will have a better understanding of them, and what such a diffrence little things can have on them
Lionel wrote:
If you are happy about this, well and good, but personally, I have no desire to adversely affect the environment unnecessarily, so I won't be removing mine.
Oh Crap, If your going to throw this into the argument, than you had better explain why your driving a large 4wd.
Did you not read about trailing throttles ?
What about all the extra energy used to manufacture an EGR system in the first place ?
If humans REALLY care about the environment we should pull the population back to about 500,000.............not gunna happen.
so lets move on. Where can I buy a removal kit ?
Last edited by abaddonxi; 1st September 2009 at 11:12 PM. Reason: Dodging the swear filter.
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on the trailing throttle bit, i headed down the road in the wife's honda civic. i noticed that u used a bit of throttle heading down a hill where in the county i need a weee bit of brakes. posable there is more trailing throttle used in lighter cars?Originally Posted by Zute
Fossicker
Blocking egr on a Patrol
To the writer re 3.0 Patrol engines blow with egrs removed. Incorrect, as a Patrol owner and like many others we disable the egr valve by blocking it with a stainless plate. We did not like the fact the soot mixes with oil mist that will then foul the MAF sensor in the early model 3.0 and or turn to grinding paste in the engine. I as well as many others have blocked the egr many many many ks ago and havent had any dramas. But...........on a Patrol you must also fit a tdi controller to take control of the turbo vanes away from the ecu as Patrols run a variable vane set-up. This is because the ecu will lower boost to cater for the egr into the engine. Lower boost means higher egts. I personally have never looked back and my egts actually dropped by about 100c after blocking the egr, fitting the dawes controller and installing a mandrel bent 2.5" into 3.0" exhaust. The engine stays cleaner and the oil remains a nice honey colour for at least 70000kms. I know this is a Landrover discussion but just wanted to correct the comment about exploding 3.0 engines due to blocking the egr valve. NOTE: The reason I was on this site is I am thinking of purchasing a Deefer and saw this debate.
ForumSage
My nissan work car (YD22) has as part of the EGR system an intake flap.
It's the intake flap I'd be looking at if you're finding increased EGT's. Does the ZD30 have one?
That said, I don't see the problem with the ECU cycling the boost up and down. Provided the sensors aren't poked it's not going to run hot enough to lunch your engine.
70,000km. Wow, that's a long oil change.
My comment was a 'generic' one, based on the feedback from Nissan owners in our club..
On the TD5 the EGR can just be removed...
On the ZD30, as you have expanded on, other modifications to the vehicles fuelling system are required to prevent engine damage...
Therefore my initial statement is correct
Fossicker
sorry meant 7000kms. But I continue. The reason we take control away from the ecu once the egr is blocked is simple. As I said previously the ecu will lower boost to cater for egr, when this occurs and with the egr blocked the egts will soon creep up. The Dawes valve works by allowing the turbo to work in a traditional linear fashion. That is, more revs=more boost=lower egts but to a point. The problem with the ecu in a ZD 30 engined Patrol is it does not work in a linear fashion and will lower or raise boost according to throttle inputs and allowing for egr. The above relates to a Patrol which has a variable vane Turbo. The Navara as I understand it, has what I call a traditional turbo and is set up differently and yes it too has egr.........unfortunatley. EGR was a low tech effort to meet emissions and is a short term fix. What is more stupid is over time engines with egr actually become less efficient,blow more smoke and die before their time because they choke up on a mixture of blowby and soot which becomes grinding paste.
I wont carry on but in the future you will see manufacturers swinging away from egr as it is crude and destructive. As you can tell I am no fan myself. Anyway I didnt mean to offend or hijack the thread and I apologise in advance for any offence. Cant wait to check out some deefers.
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