EGR

back in black · Post by **back in black** » Sun Oct 22, 2006 11:24 pm

Hi everybody!
I was wondering if anybody could show exactly the right pipe to cut to disable the EGR system?
I have seen the diagram on a thread but i'm not totally sure which one to cut n cap!
Many thanks!!!

DemonAV · Post by **DemonAV** » Mon Oct 23, 2006 6:02 am

http://www.igmaynard.co.uk/bongo/forum/ ... 9352#29352
look and enjoy

back in black · Post by **back in black** » Mon Oct 23, 2006 5:47 pm

Many thanks comrade!
Best wishes to you and fellow Bongoliers in Russia!!!

Vanmanerik · Post by **Vanmanerik** » Mon Oct 23, 2006 10:32 pm

R U saying you really understood these photos from the link?

They don't look like any I can identify on my Bongo.

Come on then, tell us EXACTLY where they are..............

DemonAV · Post by **DemonAV** » Tue Oct 24, 2006 8:20 am

Vanmanerik look this picture http://www.demonav.ru/Book/JPG/EGR.PNG
now you will find it

Vanmanerik · Post by **Vanmanerik** » Tue Oct 24, 2006 10:46 am

Many thanks DemonAV, this has made it all a lot clearer.

dandywarhol · Post by **dandywarhol** » Tue Oct 24, 2006 3:09 pm

Its an easier job to remove and plug this vacuum pipe from the EGR valve - a 5 minute job once you lift the driver's side engine cover

A lot of info about it in the "inlet manifold sludge" thread

Veg_Ian · Post by **Veg_Ian** » Wed Oct 25, 2006 8:48 am

It's not as simple as 'cutting the pipe'. On other import diesels such as Toyotas, the EGR pipe is connected to the manifolds by way of a pipe with a welded connector and two bolts (rather like an exhaust pipe connector). It's different on the Bongo. The pipe connects to the manifold by a threaded connection like a plumbing compression joint. So the way to fully remove the EGR pipework on the Bongo requires some destructive mods to the pipes (ie. no going back) whereby you re-use the screw connection by either sawing off with about 2" of pipe remaining and crimping over the pipe. Or saw the pipe off completely and weld/solder/braze a piece of metal over the hole in the threaded union (our Russian colleagues suggest a Rubel coin).
Ideally, the way to do this would be to source a threaded plug that fits the hole in the manifolds.

Bingabanga · Post by **Bingabanga** » Wed Oct 25, 2006 12:43 pm

Surely if you clamp the hose in the centre by two pieces of metal strip and a couple of screws you would seal it in both directions if you see what I mean then you dont have to cut of destroy anything and it is reversable if you find it gives aproblem????

Veg_Ian · Post by **Veg_Ian** » Wed Oct 25, 2006 1:24 pm

Sorry I misunderstood you. I thought you were referring to the metal pipe that connects the inlet manifold to the exhaust manifold. If you are simply trying to disable it without doing anything destructive then the simplest method is to pull the hose from the diaphragm and block it as I stated in the other thread. What's more simpler and easier to put back than that?

Bingabanga · Post by **Bingabanga** » Wed Oct 25, 2006 2:46 pm

hi veg_alan I think we have all crossed here it was not me asking I was just sticking my oar in!! I think we all agree on what to do here Cheers

Veg_Ian · Post by **Veg_Ian** » Wed Oct 25, 2006 3:12 pm

Sorry Bing - reading too quickly and not taking it all in.
Back in Black - look at my picture as pasted by Dandy earlier in this thread. That pipe came off the diaphragm that can just be seen in the background. Simply pull it off and block it with something like a bolt. It's all you need to do. BTW - someone in a black Bongo on the A3075 Newquay to A30 road gave me a wave yesterday (mine's all black) wasn't you was it?

ferdyb · Post by **ferdyb** » Wed Oct 25, 2006 8:22 pm

Nice piccy Dandy, but which of the three pipe ends is it ? Is it the one with the yellow cross on it then?

ferdy

Veg_Ian · Post by **Veg_Ian** » Wed Oct 25, 2006 9:49 pm

Yamaha · Post by **Yamaha** » Thu Oct 26, 2006 12:18 am

Ah - so!

I had looked at Dandy's photo before - and assumed the plugged pipe was the one down on the left, by that silver insulation - hadn't spotted the red cross - it doesn't seem to show up very well - unless you know you're looking for a red cross!!

Thanks for that info - do I understand this is as good / efficient as plugging the manifold with a Rouble?

Mike

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