scorecard Posted July 16, 2017 Share Posted July 16, 2017 My understanding (I'm not a mechanical / car engineer nor mechanic) is that EGR systems are already fitted to many new cars (diesel and gasoline) but my neighbor says the system makes the engine (diesel and gasoline) very dirty and engines fitted with this system should be seriously cleaned, regularly. Would appreciate some serious comments on the above, thanks. Link to comment Share on other sites More sharing options...
transam Posted July 16, 2017 Share Posted July 16, 2017 https://axleaddict.com/auto-repair/Bad-EGR-Valve-Symptoms-and-What-to-Do-About-Them Link to comment Share on other sites More sharing options...
JAS21 Posted July 16, 2017 Share Posted July 16, 2017 I have egr blanking plates for 3Ltr D-Max ... came out of my V-Cross ... if anyone wants some ... PM me... Link to comment Share on other sites More sharing options...
esprit Posted July 16, 2017 Share Posted July 16, 2017 Well your neighbour sound like an opinionated dick head. Read this and it is hardly a new innovation. https://en.wikipedia.org/wiki/Exhaust_gas_recirculation Having said that then of course as we all know now the diesel engines, irrespective of it various nox/particulate systems is basically a killer in terms of pollution and most likely will be non existent in Europe by 2030. Of course that will not impact Thailand as I am sure the Thai experts will ,as usual, claim the rest of the world do not as much about pollution as they do, and what creates the problem, as home grown Thais with more knowledge of cock fighting then anything else as technical as an IC engine so no problems in Thailand ever. Link to comment Share on other sites More sharing options...
Gary A Posted July 25, 2017 Share Posted July 25, 2017 IMHO, if the EGR valve wasn't of some use, the manufacturer would save the money and not install it. My V Cross runs great so I'll just let mine alone. Link to comment Share on other sites More sharing options...
JAS21 Posted July 26, 2017 Share Posted July 26, 2017 20 hours ago, Gary A said: IMHO, if the EGR valve wasn't of some use, the manufacturer would save the money and not install it. My V Cross runs great so I'll just let mine alone. So I can't flog my plates to you then ........... With the EGR blanked your oil will stay reasonably clean and at low engine revs your V-Cross will feel smoother and pick up quicker ... The downside is you will generate somewhat more NOx and it will take quite some while longer to attain normal operating temperature as the EGR Cooler now has no hot gas running through it. It's more than likely illegal in just about every other country to blank the EGR ... I ran with a basic Racechip and blanked EGR and it did feel much smoother than un-modified. Link to comment Share on other sites More sharing options...
Gary A Posted July 26, 2017 Share Posted July 26, 2017 1 hour ago, JAS21 said: So I can't flog my plates to you then ........... With the EGR blanked your oil will stay reasonably clean and at low engine revs your V-Cross will feel smoother and pick up quicker ... The downside is you will generate somewhat more NOx and it will take quite some while longer to attain normal operating temperature as the EGR Cooler now has no hot gas running through it. It's more than likely illegal in just about every other country to blank the EGR ... I ran with a basic Racechip and blanked EGR and it did feel much smoother than un-modified. No thanks. No chips or other alterations to my engine. If a chip would yield better economy, the manufacturer would use that same design. I have no doubt that you can wring more power out of a diesel but you will sacrifice economy. Simple thermodynamics. More power equals more fuel. I followed a chipped late model Pajero the other day and couldn't believe all the black smoke. It smelled like raw diesel. Of course the young Thai owner was proud of the power. Link to comment Share on other sites More sharing options...
DavisH Posted July 26, 2017 Share Posted July 26, 2017 57 minutes ago, Gary A said: No thanks. No chips or other alterations to my engine. If a chip would yield better economy, the manufacturer would use that same design. I have no doubt that you can wring more power out of a diesel but you will sacrifice economy. Simple thermodynamics. More power equals more fuel. I followed a chipped late model Pajero the other day and couldn't believe all the black smoke. It smelled like raw diesel. Of course the young Thai owner was proud of the power. Is the black smoke from unburnt diesel...it's overfuelled? I would have thought it's possible to do a remap and not have black smoke pouring out the back. Saw a video of a modified mazda 2 diesel pouring out black smoke. Looked dreadful. Link to comment Share on other sites More sharing options...
Gary A Posted July 27, 2017 Share Posted July 27, 2017 The black smoke comes from too much fuel and incomplete combustion. The cause could be from a number of different reasons. Bad injectors, a defective turbo or a problem with the electronics. Getting more power from diesels was pretty common even long ago. Many years ago I was a diesel mechanic in the US Navy. We had a situation where the captain had a boat called the gig, the admiral had a boat called a barge. The gig was much lighter and that made it faster. The admiral wanted more speed for his barge. The 6-71 series diesels had unit injectors. It was a simple thing to change the barrels and pistons in the injectors, Each cylinder had it own separate fuel supply. That was the first step. The second step was putting on different propellers. Both the gig and the barge had dual engines. No matter what we did, the gig was still faster. An old land crab (civilian) finally had an idea. Navy regulations limit these engines to a maximum RPM. We removed the tachometers and re-calibrated them. They then read about 200 RPM less than they were actually putting out. That did the trick and the barge could keep up with the gig. The admiral wanted to know what we did and he was told by the old land crab that he DIDN'T want to know. The admiral was no dummy. I think he suspected but never knew for sure. In any event, he was happy. Link to comment Share on other sites More sharing options...
JAS21 Posted July 27, 2017 Share Posted July 27, 2017 12 minutes ago, Gary A said: The black smoke comes from too much fuel and incomplete combustion. The cause could be from a number of different reasons. Bad injectors, a defective turbo or a problem with the electronics. Getting more power from diesels was pretty common even long ago. Many years ago I was a diesel mechanic in the US Navy. We had a situation where the captain had a boat called the gig, the admiral had a boat called a barge. The gig was much lighter and that made it faster. The admiral wanted more speed for his barge. The 6-71 series diesels had unit injectors. It was a simple thing to change the barrels and pistons in the injectors, Each cylinder had it own separate fuel supply. That was the first step. The second step was putting on different propellers. Both the gig and the barge had dual engines. No matter what we did, the gig was still faster. An old land crab (civilian) finally had an idea. Navy regulations limit these engines to a maximum RPM. We removed the tachometers and re-calibrated them. They then read about 200 RPM less than they were actually putting out. That did the trick and the barge could keep up with the gig. The admiral wanted to know what we did and he was told by the old land crab that he DIDN'T want to know. The admiral was no dummy. I think he suspected but never knew for sure. In any event, he was happy. Now all you need is a remap to make it go ... and smoke free Link to comment Share on other sites More sharing options...
Ace of Pop Posted July 27, 2017 Share Posted July 27, 2017 Re Map that old Chevy thing ?, D Day landing craft.!!. Link to comment Share on other sites More sharing options...
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