Chuffed to bits!

[che2318]

blanked the EGR last night and changed fuel filter.


started at 19:30 after i picked up some steel plates from a friend, all nuts came off the egr pipe bar one!, which was rounded, so spent a wee while trying to ease that one out (insert swearing and grazed knuckles here), then took pipe and drew round it on the steel and spent the next hour or two ####ing around with an angle grinder, junior hacksaw, hacksaw, flat file and rounded file and a drill and produced........a very rough looking set of blanking plates! which i was quite chuffed abotu for my first attempt.


left that for the night as it was 00:30.


0600.....woke up and spent the next two hours putting the sealant on the plates, slipping them back on, putting pipe back on and nutting it up, filling fuel filter with redex and reconnecting all the pipes. also had several cups of tea so probably could have done it faster if i tried!


drove like a madman with ECT on and OD off for a couple of miles and i must say, for now, the smoke is alot less than what it used to be.

i will monitor over the next few days to see if it stays that way.


all in all .....


quite satisfying!


thanks to everyone that helped with my questions, i got a little confused with the vacuum pipe and egr pipe and what to do with which etc.



to top it all off, my friend is gonna make me some 5mm machined steel blanking plates from the gasket and the card board copy that i made!


will add pics once i download them!

[Rustinho]

I took my laptop out to the Surf with me with a word document that I copy & pasted from the link I suggested and kept on referring to it when I needed to know what to do next (or check for the 17th time what I needed to do next!).

It seems daunting at first (especially if, like me, you've never really touched a car engine before) but it isn't actually that difficult once you start to get into it.

Well done! I felt really rather satisfied when I finished it.

[steved]

Little bit of info just in case its not been said the purpose of the egr system is to make the engine run cooler it does this by recirculating a proportion of the exhaust gas on light throttle and overrun, if its working properly it does not work on full throttle, as well as making the engine run cooler it reduces NOX but increases particle emissions i.e. smoke so blanking/removing it makes the engine run hotter ( on a engine with known overheating issues) but does reduce the black smoke weather it actually make the vehicle preform better is debatable and probably depends on the state of the system before.
Personally I have tried it on my vehicles and it made no appreciable difference so its now reconnected as I don't think its worth taking the risk with the head.

[che2318]

quite a few of the egr blankers on here have registered a cooler engine when the have blanked the egr to when it had actually been operating.

although some more info on the matter would be good.

[che2318]

it reduces the engines peak combustion temperatures, but also increases engine wear and reduces fuel efficiency.

if your coolant is topped up, and you have no leaks from your pipes, then it will do its job in keeping the engine temp down.

you will get better power as the the combustion temperatures will be higher in the piston chamber so the majority of the fuel will be burned and not turned into particulate matter, which means no wasted fuel when the truck is running.

if the head is the reason why someone wouldnt remove the EGR, then i would be more worried about the coolant level and pipe condition as this keeps the engine cool.

the EGR is not their to keep the engine cool....its there to reduce NOx.

[Taliesins]

Little bit of info just in case its not been said the purpose of the egr system is to make the engine run cooler it does this by recirculating a proportion of the exhaust gas on light throttle and overrun, if its working properly it does not work on full throttle, as well as making the engine run cooler it reduces NOX but increases particle emissions i.e. smoke so blanking/removing it makes the engine run hotter ( on a engine with known overheating issues) but does reduce the black smoke weather it actually make the vehicle preform better is debatable and probably depends on the state of the system before.
Personally I have tried it on my vehicles and it made no appreciable difference so its now reconnected as I don't think its worth taking the risk with the head.

Quote from wiki. Since diesel engines are unthrottled, EGR does not lower throttling losses in the way that it does for SI engines. However, exhaust gas (largely carbon dioxide and water vapor) has a higher specific heat than air, and so it still serves to lower peak combustion temperatures. There are trade offs however. Adding EGR to a diesel reduces the specific heat ratio of the combustion gases in the power stroke. This reduces the amount of power that can be extracted by the piston. EGR also tends to reduce the amount of fuel burned in the power stroke. This is evident by the increase in particulate emissions that corresponds to an increase in EGR. Particulate matter (mainly carbon) that is not burned in the power stroke is wasted energy. Stricter regulations on particulate matter(PM) call for further emission controls to be introduced to compensate for the PM emissions introduced by EGR. The most common is particulate filters in the exhaust system that result in reduced fuel efficiency. Since EGR increases the amount of PM that must be dealt with and reduces the exhaust gas temperatures and available oxygen these filters need to function properly to burn off soot, automakers have had to consider injecting fuel and air directly into the exhaust system to keep these filters from plugging up.

EGR deletion in diesel engines is considered justifiable by a wide range of people. From the environmentally conscience that wish to lower global carbon dioxide output, to truck drivers that seek to improve fuel mileage. Although removing the EGR system results in increased NOx emissions, it will reduce the engines output of hydrocarbon emissions, particulates, carbon dioxide and carbon monoxide. Exhaust gas recirculated back into the cylinder does increase engine wear as carbon particulate wash past the rings and into the oil[1]. [2] [3]

[budweiser]

Quote from wiki. Since diesel engines are unthrottled, EGR does not lower throttling losses in the way that it does for SI engines. However, exhaust gas (largely carbon dioxide and water vapor) has a higher specific heat than air, and so it still serves to lower peak combustion temperatures. There are trade offs however. Adding EGR to a diesel reduces the specific heat ratio of the combustion gases in the power stroke. This reduces the amount of power that can be extracted by the piston. EGR also tends to reduce the amount of fuel burned in the power stroke. This is evident by the increase in particulate emissions that corresponds to an increase in EGR. Particulate matter (mainly carbon) that is not burned in the power stroke is wasted energy. Stricter regulations on particulate matter(PM) call for further emission controls to be introduced to compensate for the PM emissions introduced by EGR. The most common is particulate filters in the exhaust system that result in reduced fuel efficiency. Since EGR increases the amount of PM that must be dealt with and reduces the exhaust gas temperatures and available oxygen these filters need to function properly to burn off soot, automakers have had to consider injecting fuel and air directly into the exhaust system to keep these filters from plugging up.

EGR deletion in diesel engines is considered justifiable by a wide range of people. From the environmentally conscience that wish to lower global carbon dioxide output, to truck drivers that seek to improve fuel mileage. Although removing the EGR system results in increased NOx emissions, it will reduce the engines output of hydrocarbon emissions, particulates, carbon dioxide and carbon monoxide. Exhaust gas recirculated back into the cylinder does increase engine wear as carbon particulate wash past the rings and into the oil[1]. [2] [3]

sooo,
bringing up an old thread, this means in plain english, that is good to remove the egr system.
so now i need to find a pic thread of how to do it on a 3l

[Sylux]

http://daemon4x4.org/portal/articles.php?rid=6

Any good?

Edit: Sorry...that's a 2.4

[budweiser]

thanks, but thats for a 2.4l not for a 3l, or im i missing something?

[Sylux]

Nah, see edit *blush*

Fools rush in and all that

[budweiser]

just noticed the edit bit, no worries, but thanks