EGR Blanking

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Have you blanked off your EGR?

Poll ended at Sat Dec 08, 2007 8:32 pm

Yes and I love it
25
56%
No chance
3
7%
Yes, but I am going to put it back to normal
0
No votes
No, but it is on my list of things to do
13
29%
No, I havent considered it / not bothered
4
9%
 
Total votes: 45
BongoMTBer

EGR Blanking

Post by BongoMTBer » Mon Dec 03, 2007 8:32 pm

Considering the EGR thing when I finally take deilvery.
BongoMTBer

Post by BongoMTBer » Mon Dec 03, 2007 11:02 pm

Seems to be a tendency towards fitting the blank.

Where do I get one?
Veg_Ian

Post by Veg_Ian » Tue Dec 04, 2007 8:26 am

This is my second vehicle that I've blanked off the EGR. If you saw the crud that builds up as a result of it you wouldn't be giving this a second thought. There's a good thread from about a year ago entitled "manifold sludge" with some pictures of what EGR does to your inlet manifold, explanations about what it is, how it works, why you don't need it, and a simple fix for disabling it.
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tigs
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Post by tigs » Tue Dec 04, 2007 12:22 pm

What the @@@@@ is an EGR an what does it do or not do as the case may be.

Then i may be able to vote
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BongoMTBer

Post by BongoMTBer » Tue Dec 04, 2007 12:49 pm

Cheers Ian, will have a look at that one.
Steve L
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Posts: 188
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Location: Selby, North Yorks

Post by Steve L » Tue Dec 04, 2007 1:09 pm

Tigs,
Its short for 'exhaust gas recirculation'. Its the steel pipe that goes from the inlet manifold under the drivers seat to the exhaust manifold under the passenger seat. Exhaust gas is passed through it to be reburnt in the cylinders, supposed to reduce emmissions but this is questionable. What it does do is put a load of crap in your inlet manifold. I've blocked mine off but to be honest havn't noticed much difference in the running of the vehicle so can't really vote.
1995 N reg 2WD AFT in green/grey
www.whiteroseancestry.co.uk
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tigs
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Location: Hampshire

Post by tigs » Tue Dec 04, 2007 1:21 pm

Ok thanx for that Steve :D Cant say i got any feelings on it one way or the other. :lol:


Am now looking for the don't care button :lol: :lol:
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flippa

Post by flippa » Tue Dec 04, 2007 2:47 pm

blocked my egr orf...using allans kit...very simple to do....definte reduction in black smoke....although i now get white smoke :roll: ....only on start up tho for a min or so......initial thoughts were ...it feels more zippy :roll: ....well worth doing imo :wink:
Manny
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Post by Manny » Tue Dec 04, 2007 3:18 pm

I did mine by sticking a bolt in the rubber pipe as shown in the photo elsewhere on this forum. I think that counts as being blocked off :?. I would like to blank it off using the metal discs but I am not to sure how to do it yet. Something to put on the "when I find out excactly how to do it" list.
smartmonkey

Post by smartmonkey » Tue Dec 04, 2007 4:18 pm

Well some diesels respond well to blanking and some dont. The more old tech they are the better the effect and the Bongo has a small but noticeable improvement. The crud in the inlet is not a big factor but you have to remember that all that muck is on the way to the engine and only a tiny amount sticks in the inlet. If you have a stuck EGR then the effect is very noticeable because you are bypassing a serious problem. It is best to blank the lot off because they usually leak a bit so you only get a limited improvement.

All in all a few good points and no bad ones so it seems an easy decision to me. Some very modern diesels rely on EGR to cool turbos so whilst it's fine on a bongo it doesn't work on everything.
bongolow
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Post by bongolow » Tue Dec 04, 2007 6:07 pm

I had mine done about a month ago. I've been logging the mpg on a spreadsheet since I got the Bongo about a year ago so I'll let you know in a month or so what difference it's made. I haven't done all that many miles since I fitted it but I'll be having a long trip to Caithness over Christmas.

I can say though that the magnet thingy on the fuel pipe, fitted about six months ago, hasn't made the slightest iota of difference.
vanvliet
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Location: Fife , Scotland

Post by vanvliet » Tue Dec 04, 2007 6:37 pm

What is the link for the nickskidmore kit?
trevd01

Post by trevd01 » Tue Dec 04, 2007 7:14 pm

I've added a further option to cover the people who are not violently opposed (no chance), but can see no reason/ it ain't broken don't fix it.
tanner

Post by tanner » Tue Dec 04, 2007 7:22 pm

Please include the following category

I blanked it, I wish I hadn't bothered, but am very unlikely to refit it, unless hell freezes over.

The above does not apply to me, by the way. Just trying to make sure we've covered all the options :wink:
BongoMTBer

Post by BongoMTBer » Wed Dec 05, 2007 6:10 pm

Nick, YGPM
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