Bongo Fury

I have read some of the previous post on this forum about blanking plates but has anyone actually fitted one to their Bongo.
I took mine to my local garage to investigate the roar that has developed around 2-2500 revs(previous exhaust post) and after a good chat the mechanic told me to maybe get my egr valve blanked.
Not that is will have much to do with the roar(maybe it will) but when he saw that I had a egr valve he suggested that I will get better performance in low revs with a blanked valve and that he does it to all of his cars.
So back to the question.
Has anyone done it to their Bongo and does anyone know a supplier of good plates to fit the Bongo as I am too lazy to make one up myself.

Russian bongoers block EGR due to averagely poor quality of the fuel that blocks their engine's inlet collectors (don't know exactly what it is and where it is ). They use a coin of particular value that exactly match by size and temperature requirements, so if you mean to block EGR, I can ask what the size of the coin it was.

Good idea, but please do not go to too much trouble!!

Had it done to mine! Worked a treat, mechanic put ball bearing in pipe and power is more noticeable and economy improved (not by a million mpg) but you do notice, Didnt do much to black cloud of a morning though but hey you cant win em all.
Just for the pendents "yeah a service might help the black stuff go away"

now the obvious questions.....
1. What size ball bearing?
2. Which pipe?

answers on a postcard to;
lessthirstybongo.com
30 mpg Street
Anytown.

I am guessing that the egr is that pipe that comes around the back of the engine and has some electrical thingummywhatsit right at the back. Can I just blank this by undoing the two 10MM screws at the front end of the inlet manifold and put a blanking plate in there? Can I alter the wirning so it simply doesnt work. Can somebody draw me a picture?

Some photos:





http://www.mikrob.ru/viewtopic.php?p=37669#37669
There it is a lot of discussions about that it is useful or not. If translation will be necessary, call Jone_it

Thanks for the very useful photos Demon. Now I know the EGR pipe can be found sitting on top of the ashtray. Can't be easier than that.

Good one, Tanner!

Upset that nobody got my joke about the Russian coin being too much t rouble!

Does anyone have a spare 2 rouble coin??

I've unlocked this thread because I've come across some useful information. While surfing the web (as you do), I visited Allans Vehicle Services rather excellent website and came across this.

http://www.allansvehicleservices.co.uk/57380.html

For £12 a pair, I'd say these look like a smart investment.

I don't have a problem with the rationale that Allan's have. They've taken the view that their blanking plates should be removable if a new owner should wish to reinstate the EGR. I believe that this is what Froncophile has done with a 2p coin.

I'm of the opinion that if you take the decision to disable the EGR then ideally you should remove all the hardware that supports it including the pipework. It would certainly make engine maintenance easier and get rid of some excess weight. The stumbling block as I see it is the way in which the EGR pipe attaches to the exhaust manifold. Instead of two bolts pressing in on an olive union or gasket, it's a screw type arrangement. If someone could fabricate a screw-in plug for the exhaust manifold connection then the job could be done properly.

Hi Veg_Ian
That is indeed what I've done with a 2p coin, but only at the inlet manifold end. haven't given it a decent run yet to see what it's like, but I'll post when I do.

Hi John

there are a number of ways to disable it and I'm sure you will find that like the rest of us you should notice a slight improvement in performance and sleep more easily knowing you've stopped the build up of crud in the inlet manifold.

I did the same on my old Townace and went a step further by fabricating my own blanking plates for the two manifolds and removing all the gubbins afterwards. With the Bongo there's a lot more of it and some pretty substantial pipework so a rewarding exercise to remove and you could save it all and replace it if you really wanted to. However, as I've said I'm not sure how you would get around the screw in attachment at the exhaust manifold end. You could cut the pipe and somehow seal the pipe but then you really would pass the point of no return ......

Hi Ian
I intend to make up a blanking plate for the inlet end if the 2p works OK. As you say, the other end is a different matter. It looks about the same size as a gas blanking plug, but I don't suppose the threads are the same.