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Post by holden on Jun 29, 2008 15:09:35 GMT 11
Hi all,
I have heard that Remove and block EGRs pipe from the Exhaust manafold to the air inlet manafold give you a little more power, fuel ecconomy and allso get's it out of the way. I want to take them off before I put my intercooler on.
Is there anything I need to know before doing this or just rip em off ??
What should I block it all up with ??
Is this a good idea or should i just leave it ??
kane   
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Post by geeves on Jun 29, 2008 20:00:54 GMT 11
If your going to do it definatly before the intercooler goes on. Beware that new emissions laws might be on the way so dont throw the bits away.
It all unbolts quite easily but then you need to make blanking plates for the holes. The right hand one is exhaust so needs to be steel with exhaust goo to seal. The 2 on the inlet manifold can be steel or alloy but make doubly sure these are sealed. They will squeal like a banshee if they are not. Then just plug the 2 vacuum lines Easy
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Post by holden on Jun 30, 2008 7:45:24 GMT 11
Cool thanks geeves. ;D ;D
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Post by Jimmu on Jun 30, 2008 19:54:58 GMT 11
Or use the plate/cast section off the bottom of the EGR units to bolt over the holes and put aluminium sadwiched in between or weld over the gaps and refit.
Jimmy
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Post by terravistawombat on Jul 1, 2008 14:57:46 GMT 11
Hi Kane
I took my '92 MU to a diesel mechanic when the car was blowing smoke on accelleration, and after he diagnosed sticky EGR's, all he did was poke a snug fit ball bearing in each of the two vacuum tubes where they connect onto the EGR. He said with no vacuum, the EGR would be innoperative, and no necessity of removing or installing coverplates.
No more smoke, and no visible alteration if it ever got inspected.
Cheers
Ian
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Post by holden on Jul 1, 2008 15:13:16 GMT 11
Well I have just got them off and put plates on and it still runs ;D heres some pics    I know the one on the exhaust manafold is a little odd shaped but I got lazy.   PLZ tell me if I have done something wrong and I will get on it and fix it up. thx for all your help. |
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Post by geeves on Jul 1, 2008 15:47:08 GMT 11
As long as there is some sort of sealant behind the plates it will be fine. Its a far tidier job than what was done on mine before I bought it 11 years ago
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Post by dasnoboarder on Jul 1, 2008 21:52:29 GMT 11
Looks good mate, again, tidier than mine which I had done by a shop with some other things because I was a bit busy at the time...
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Post by nemesis on Jul 3, 2008 15:56:26 GMT 11
If I was you Id just leave it alone - a mate and I have tested this as far as we are able and there is NO gain in power or economy. We posted the results on here a while back. Im sure its another old wives tale!
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Post by holden on Jul 3, 2008 16:41:50 GMT 11
Its abit late now.
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drift
Isuzu Baby
Posts: 31
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Post by drift on Jul 4, 2008 7:41:25 GMT 11
At least be content you are not throwing carboned up exhaust gases back into your engine, gives some peace of mind.
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Post by adrian on Jul 22, 2008 9:01:56 GMT 11
Guys, my EGR seam to blow soot type substance over the engine bay, origionating at the slots it lost power, to the point it has cut out, but i think this is due to using running it on biodiesel...?? what does the valve between the turbo and intercooler do? how does the valve on the exhaust work, and how do i tell if it is faulty, as if i push the quick heat switch in winter (in uk) then when the engine gets warm, (very quickly) but then when i turn the switch off, sometimes the car runs like bag of doo-doo Ade ps i finally got round to fitting new aux drive belts to stop the squeaking!!  |
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Post by geeves on Jul 22, 2008 10:47:49 GMT 11
If anything is coming out of the egr valves into the engine bay they are faulty. Due to British emissions laws you wont get away with blocking them off so they must be replaced. Consider this fairly urgent as carbon monoxide is one of the gasses coming out which will kill you if it gets in the passenger compartment in big enough quantities.
Dont know what the valve in the intake does. Its attached to the wastegate so must have something to do with overboost.
It sounds like the exhaust valve is sticking. Try lubing it with a high temp lube first but corrosion from salted roads might mean a bigger job. The whole thing works by a sensor in the thermostat housing that sees the water temp activating a cold start circuit. This extends the glow time and advances the injector timing. Then if you also operate the switch it operates the exhaust gas forcing the gas to stay in the engine longer for fast warm up. Things that can go wrong If the exhaust valve sticks you have poor power and will probably overheat. If the timing stays advanced the engine knocks like the pistons are on there way out of the engine and poor power.Normaly these things fail in the off position so when you push the button nothing happens. In NZ and Aus the cold start system is almost never used
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gecko
Isuzu Junior
Posts: 92
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Post by gecko on Jul 22, 2008 18:59:56 GMT 11
and from personal experience if it is used you learn how to unseize the butterfly valve from under you vehicle, a can of spray sprayed into the box thing on the side of it while you work it back and forth did it for me, then i disconnected the button lol
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drift
Isuzu Baby
Posts: 31
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Post by drift on Jul 23, 2008 0:41:10 GMT 11
You can block the egr off in the UK on th 2.8 and 3.1 and it should help, I had my MOT a couple of weeks ago and it flew through the emissions test with the EGR blocked and the cold start mechanism at the exhaust removed, the UK MOT test does not check diesels for the emissions the EGR is designed to combat. It sounds very much like the butterfly flap has stuck closed in your exhaust and causing the problem. My solution below. This is the unit  This is the offending flap  And my solution was to take it off as I never use it and fit a spacer.  The car now revs more freely without the blockage. |
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Post by adrian on Jul 23, 2008 8:53:38 GMT 11
Will have to look into cleaning the soot out, and hope they work again (if this is possible)
and work some spray oil into the mechanism to make sure the flap is not in the open position.
not sure on law here on EGR, as my land rover diesel has them blanked off, (had to buy it, cosit was cheaper than keep replacing alternators on trooper!) its the same year, and never
had problems passing it's annual test.
could both explain why it has been down on power and gutless (still wastes friends land rovers though!!)
will check it out when i get chance (soon i hope!)
thanks again guys, i'll keep you up dated with any progress (if the fitting of my snorkel is anything to go by, then check backnext summer!) and any change in performance.
ade
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drift
Isuzu Baby
Posts: 31
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Post by drift on Jul 23, 2008 9:22:45 GMT 11
If its sticking closed it could be down to these two bolts you can see sticking out of the casing.  As mine was off like a child I couldnt resist seeing what was inside and I found the bolts rather loose, this indicated they where set wrong, as you can see how they work in this picture.  Its kind of a plunger system to open the flap operated by the vacuum system. I hope this helps some one. |
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Post by holden on Sept 2, 2008 18:20:44 GMT 11
You can block the egr off in the UK on th 2.8 and 3.1 and it should help, I had my MOT a couple of weeks ago and it flew through the emissions test with the EGR blocked and the cold start mechanism at the exhaust removed, the UK MOT test does not check diesels for the emissions the EGR is designed to combat. It sounds very much like the butterfly flap has stuck closed in your exhaust and causing the problem. My solution below. This is the unit This is the offending flap And my solution was to take it off as I never use it and fit a spacer. The car now revs more freely without the blockage. Would taking the exhaust butterfly flap and putting a spacer in give you much power gain??? kane |
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Post by geeves on Sept 5, 2008 12:39:36 GMT 11
If it is working correctly any gain would be minimal but if it isnt the gains could be huge
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Post by MuZila on Apr 22, 2009 17:54:02 GMT 11
My EGR's are disabled. I want to rip them out to make more room for the second battery. Ok taking them off is easy. So is blanking the holes. What I want to know is, are all those little hoses and all that crap in the right hand corner, behind the filter necessary?? Kan they all be ripped out. (gently that is)  |
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