View previous topic :: View next topic |
Author |
Message |
Darren F LifeTime Member
Age: 57 Zodiac: Joined: 08 Apr 2008 Posts: 141 Location: COVENTRY
|
Posted: Wed Apr 16, 2008 6:31 Post subject: |
|
|
I have blanked off me Exhaust GAS Recirculation valve as all it does is heat up the cyl head
750 deg gas being put through the inlet manifold into th cyl head and onto the back of the inlet valves which then have to dissapate the extra heat through the valve seats which then puts the extra heat back into the head
I SAY BURN IT ONCE AND THROW IT STRAIGHT THROUGH THE TURBO AND OUT THE EXHAUST |
|
Back to top |
|
|
Google Sponsor
|
Posted: Wed Apr 16, 2008 6:31 Post subject: Google Ads keep the POCUK free to join! |
|
|
|
|
Back to top |
|
|
mad mechanic **
Age: 53 Zodiac: Joined: 27 Jul 2007 Posts: 81 Location: Rotherham , S.Yorks
|
Posted: Fri Apr 18, 2008 20:27 Post subject: |
|
|
Exhaust Gas Recirculation (EGR) valves can be the cause of many driveability problems. They can stick open, not close completely or operate in a haphazard manner, most problems are caused by carbon deposits on the inlet of the valve altering the flow of exhaust gas, which in turn cause the faults above..
What the EGR valve does is channel a small measured amount of exhaust gas back into the combustion chamber to lower combustion temperatures. Which lowers Nitrogen Oxide (NOx) emissions and can in a lot of cases, improve fuel consumption and power.
The main causes for concern are not the valves themselves but the mechanisms operating them, ie vacuum springs etc. If these are not properly adjusted (inc fuel pump) then this is when people start to block them off etc. They were origianlly designed for emmisions control in usa in the 70s but have since been used extesively by most major car manufacturers.
They are there for a reason guys best thing in my honest professional opinion is to keep them and make sure they are maintained as they should be.
just my twopenneth..lol
andy |
|
Back to top |
|
|
chipmunk *
Age: 68 Zodiac: Joined: 25 Feb 2009 Posts: 19 Location: Doncaster
|
Posted: Thu Feb 26, 2009 10:47 Post subject: |
|
|
Newbie here.. checked threads first.. BUT unsure about.. ball bearing.
Cleaned my EGR as per previouse threads, but still haveing major problems with exhaust smoke, put this down to pump seal, trouble starting in morning as if no diesel and cut out.. my main question is.. i noticed that there is a ball bearing in the pipe, once all the egr and stuff is cleaned, is this ball bearing needed (not sure on this piece).. |
|
Back to top |
|
|
PoCUK Site Admin
Age: 60 Zodiac: Joined: 09 Oct 2002 Posts: 3749 Location: S/W New Forest Border
|
Posted: Thu Feb 26, 2009 10:50 Post subject: |
|
|
chipmunk wrote: |
... my main question is.. i noticed that there is a ball bearing in the pipe, once all the egr and stuff is cleaned, is this ball bearing needed (not sure on this piece).. |
No - get rid of it - the ball bearing is useless - it simply stops a correctly functioning EGR valve from working
Simon |
|
Back to top |
|
|
chipmunk *
Age: 68 Zodiac: Joined: 25 Feb 2009 Posts: 19 Location: Doncaster
|
Posted: Thu Feb 26, 2009 11:27 Post subject: |
|
|
thanks simon, at mo i blanked off the egr till get other problems fixed (was advised to block of) was told this would cure my problem but hasnt, but will but it all right and working as should be.. |
|
Back to top |
|
|
bkw570 *
Age: 67 Zodiac: Joined: 30 Jan 2009 Posts: 34 Location: south shields
|
Posted: Wed Nov 11, 2009 20:38 Post subject: well well |
|
|
heres one for ya
a few weeks ago i took my egr off and gave it a dam good clean
was realy realy proude
then i noticed that my paj had a delay when pulling away and a mass of black smoke
so i checked out the web site for further advice
and looked at the 2 thingy watsets underneith the intercooler where the 2 small pipes go
ahhhhhhhhhhhhhh you know what i mean
anyway found the one comming from the egr wasent working so i changed it
still got the same problem
still a delay when pulling away and a mass of black smoke at the same time
so i blanked off the breather tube that goes to the egr
and success no black smoke and no delay when pulling away
i know what ur all saying yea yea his egr is stuck in some way but
i can prommise you the egr is working fine
so only one question remains
WHATS GANNEN ON ? |
|
Back to top |
|
|
0083 *
Age: 58 Zodiac: Joined: 12 Nov 2009 Posts: 14 Location: DEVON
|
Posted: Mon Nov 16, 2009 14:21 Post subject: Re: EGR |
|
|
chrishigh80 wrote: |
HI
why is it that on many other posts that they are suggesting blanking it off. if i do unblank it would my fuel consumption be any better ?? at the moment i am gettin on average about 20 miles to the gallon....
regards
chris |
i blanked my egr valve to see if it made any difference but after blanking it i started to get black smoke under accelleration so i am going to clean it and put it back as i wasn't getting any problems before and i dont want to adjust the pump |
|
Back to top |
|
|
0083 *
Age: 58 Zodiac: Joined: 12 Nov 2009 Posts: 14 Location: DEVON
|
Posted: Mon Nov 16, 2009 18:11 Post subject: Re: EGR |
|
|
0083 wrote: |
chrishigh80 wrote: |
HI
why is it that on many other posts that they are suggesting blanking it off. if i do unblank it would my fuel consumption be any better ?? at the moment i am gettin on average about 20 miles to the gallon....
regards
chris |
i blanked my egr valve to see if it made any difference but after blanking it i started to get black smoke under accelleration so i am going to clean it and put it back as i wasn't getting any problems before and i dont want to adjust the pump |
i have refitted it and the smoke has gone if its not broke dont fix it! |
|
Back to top |
|
|
andyspitfire LifeTime Member
Age: 54 Zodiac: Joined: 28 Feb 2011 Posts: 30 Location: FARNHAM SURREY/COBBET PH
|
Posted: Thu Mar 17, 2011 18:35 Post subject: EGR VALVE PROBLEM SOLVED |
|
|
Hi, ive been reading all sorts of posts on this subject,
and decided to blank mine off completley.
Its worked a treat,no more smoke belching out when you clog the divers boot
down on the loud pedal,and it has started to pull better,and i have had some issues
with performance with mine,although i know there not fast by any standard,
as there old school diesels,but mine has improved dramaticly since i binned the dreaded
egr valve,so as far as im concerned,jobs a gooden,sorted lol |
|
Back to top |
|
|
kernow jon ****
Age: 75 Zodiac: Joined: 11 Nov 2008 Posts: 360 Location: Cornwall Gods own country
|
Posted: Sun Jul 10, 2011 20:36 Post subject: |
|
|
mad mechanic wrote: |
Exhaust Gas Recirculation (EGR) valves can be the cause of many driveability problems. They can stick open, not close completely or operate in a haphazard manner, most problems are caused by carbon deposits on the inlet of the valve altering the flow of exhaust gas, which in turn cause the faults above..
What the EGR valve does is channel a small measured amount of exhaust gas back into the combustion chamber to lower combustion temperatures. Which lowers Nitrogen Oxide (NOx) emissions and can in a lot of cases, improve fuel consumption and power. Thanks for your replies.
andy |
Andy's second paragraph does not make sense to me. How can feeding hot exhaust gases back into the inlet manifold, lower the heat in the combustion chamber?
I know Nitrogen in its pure form is cold, very cold in fact. But the EGR device does not isolate the Nitrogen gas from the other exhaust gases - the EGR is channeling into the inlet manifold a mixture of gases contained in the exhaust of the engine.
According to Ford's site the EGR works at idle and "cruise" and is turned off when power is demanded I wont bore you by pasting in what they say so here is the link
http://www.fordscorpio.co.uk/egr.htm
Maybe reburning exhaust gas is good for the environment, but then if I was really concerned about the environment maybe I would drive an electric car not a Pajero!
Jon |
|
Back to top |
|
|
neil-tce LifeTime Member
Age: 58 Zodiac: Joined: 16 Apr 2010 Posts: 705 Location: Runcorn, Cheshire
|
Posted: Sun Jul 10, 2011 21:45 Post subject: |
|
|
kernow jon wrote: |
mad mechanic wrote: |
Exhaust Gas Recirculation (EGR) valves can be the cause of many driveability problems. They can stick open, not close completely or operate in a haphazard manner, most problems are caused by carbon deposits on the inlet of the valve altering the flow of exhaust gas, which in turn cause the faults above..
What the EGR valve does is channel a small measured amount of exhaust gas back into the combustion chamber to lower combustion temperatures. Which lowers Nitrogen Oxide (NOx) emissions and can in a lot of cases, improve fuel consumption and power. Thanks for your replies.
andy |
Andy's second paragraph does not make sense to me. How can feeding hot exhaust gases back into the inlet manifold, lower the heat in the combustion chamber?
I know Nitrogen in its pure form is cold, very cold in fact. But the EGR device does not isolate the Nitrogen gas from the other exhaust gases - the EGR is channeling into the inlet manifold a mixture of gases contained in the exhaust of the engine.
According to Ford's site the EGR works at idle and "cruise" and is turned off when power is demanded I wont bore you by pasting in what they say so here is the link
http://www.fordscorpio.co.uk/egr.htm
Maybe reburning exhaust gas is good for the environment, but then if I was really concerned about the environment maybe I would drive an electric car not a Pajero!
Jon |
Well said, could not aggree more..
Also think , if you put a bag over your head what would happen?? youd suffocate, because you cannot live on recycled gasses, so why put exaust fumes back into the engine,
also intercoolers are fitted to cool the air after the turbo has heated it, by compressing it, so why would you want to put hotter air into the engine than the turbo could blow in..
It is rediculas, the guy who dreamed this up needs shooting |
|
Back to top |
|
|
markopollo ***
Age: 39 Zodiac: Joined: 09 Jul 2011 Posts: 172 Location: seafeild
|
Posted: Wed Aug 10, 2011 17:40 Post subject: |
|
|
OMG!!!!!
i am so confused with all this EGR blanking/ not blanking , I am a newbe to the Paj way but i have spoke to a few MECHANICS and thay say:
" MITSUBISHI WOULDNT FIT IT TO ALL THEIR CARS IF THAY DIDNT NEED ONE"
I can see were thay are cumming from but i cant help being swayed by all the poast for blanking it ?!?!?!?!?!?!?!??!?!?!?!??!!?!?!?
Think im going to clean it and see if that makes any diff in performance and fule consumption. If not then its blanking time (maby not, so confused)
Marko |
|
Back to top |
|
|
KnT *****
Age: 57 Zodiac: Joined: 30 Jul 2010 Posts: 751 Location: manchester
|
Posted: Wed Aug 10, 2011 20:58 Post subject: |
|
|
markopollo wrote: |
OMG!!!!!
i am so confused with all this EGR blanking/ not blanking , I am a newbe to the Paj way but i have spoke to a few MECHANICS and thay say:
" MITSUBISHI WOULDNT FIT IT TO ALL THEIR CARS IF THAY DIDNT NEED ONE"
I can see were thay are cumming from but i cant help being swayed by all the poast for blanking it ?!?!?!?!?!?!?!??!?!?!?!??!!?!?!?
Think im going to clean it and see if that makes any diff in performance and fule consumption. If not then its blanking time (maby not, so confused)
Marko |
Blank it, you wont regret it |
|
Back to top |
|
|
neil-tce LifeTime Member
Age: 58 Zodiac: Joined: 16 Apr 2010 Posts: 705 Location: Runcorn, Cheshire
|
Posted: Wed Aug 10, 2011 21:00 Post subject: |
|
|
Nearly everyone blanks the egr...
they even sell the blanking plates in the pocuk shop... |
|
Back to top |
|
|
markopollo ***
Age: 39 Zodiac: Joined: 09 Jul 2011 Posts: 172 Location: seafeild
|
Posted: Wed Aug 10, 2011 23:54 Post subject: |
|
|
kevntrace wrote: |
markopollo wrote: |
OMG!!!!!
i am so confused with all this EGR blanking/ not blanking , I am a newbe to the Paj way but i have spoke to a few MECHANICS and thay say:
" MITSUBISHI WOULDNT FIT IT TO ALL THEIR CARS IF THAY DIDNT NEED ONE"
I can see were thay are cumming from but i cant help being swayed by all the poast for blanking it ?!?!?!?!?!?!?!??!?!?!?!??!!?!?!?
Think im going to clean it and see if that makes any diff in performance and fule consumption. If not then its blanking time (maby not, so confused)
Marko |
Blank it, you wont regret it |
Wat about fule pump calabration? dont you have to do it if you use a egr blanker???
Marko |
|
Back to top |
|
|
|