Technical questions and answers about the Mazda Bongo
Moderators: Doone, westonwarrior
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ford tinny
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by ford tinny » Thu Nov 01, 2007 8:59 pm
Hello has anyone fitted an ball bearing to their egr valve pipe to stop exhaust fumes being burnt twice, if so, does it work
Thanks John (ford tinny)

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francophile1947
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by francophile1947 » Thu Nov 01, 2007 9:02 pm
Not a ball bearing but a 2p coin.
Seems to work fine. I checked it earlier this week and there was a load of cr*p on the exhaust side which would now be coating my inlet manifold

John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
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heatherpetch
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by heatherpetch » Thu Nov 01, 2007 9:20 pm
we had the egr removed completely when new exhaust fitted.
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ford tinny
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by ford tinny » Thu Nov 01, 2007 9:33 pm
Hello is there much work involved in removing the EGR by fitting new exhaust?
Thanks John (ford tinny)
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daveblueozzie
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by daveblueozzie » Thu Nov 01, 2007 9:41 pm
dont use the ball bearing its not very good ,buy the egr blanking plate much safer.
Lost without my Bongo.
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Ralph
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by Ralph » Thu Nov 01, 2007 9:42 pm
Think you mean putting the ball in the vacuum pipe
to stop the valve opening, I have done this and it
works but would not work it the egr valve is stuck
open give it a go nothing to lose pull the small vacuum
pipe off the egr valve and ether just block the pipe
and leave it off or stick a small ball up the end to block
it and push it back on. Just to be sure you don't put the
ball in any thing were it could get into the engine it
is very small and goes in the egr end of the very small
vacuum pipe not the bigger pipe that goes to the manifold.
Last edited by Ralph on Thu Nov 01, 2007 9:45 pm, edited 1 time in total.
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heatherpetch
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by heatherpetch » Thu Nov 01, 2007 9:44 pm
ford tinny wrote:Hello is there much work involved in removing the EGR by fitting new exhaust?
Thanks John (ford tinny)
it didn't take them 2 mins to take it off but don't know about us

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missfixit70
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by missfixit70 » Thu Nov 01, 2007 10:31 pm
2 different kits available that I know of, one from Allans in Plymouth that blanks but leaves egr in place, the other removes the egr completely, made by another club member whose name I can't remember at the moment, even though I bought & fitted one

. Both have their own merits, chances are the egr valve will no longer seal completely due to the build up of crud, so it's a good idea to do something. Do a search - shedloads of info on here, not a huge job either way

You can't polish a turd - but you can roll it in glitter.
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missfixit70
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by missfixit70 » Thu Nov 01, 2007 10:40 pm
heatherpetch wrote:we had the egr removed completely when new exhaust fitted.
Was this the exhaust recirc bit under the chassis that is actually part of the exhaust as the cold start doohickey, or the egr system on the engine that returns air from the turbo back into the air inlet manifold? If it's the former it isn't the egr. Not trying to be picky, just curious as to why they removed the egr with the exhaust & how they did it soo quickly?

You can't polish a turd - but you can roll it in glitter.
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Baldeagle
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by Baldeagle » Fri Nov 02, 2007 8:20 am
ford tinny wrote:Hello has anyone fitted an ball bearing to their egr valve pipe to stop exhaust fumes being burnt twice, if so, does it work
Thanks John (ford tinny)

John, I did the ball bearing one on a Mitsubishi Pajero i once owned and it worked fine.
On the Bongo, because of being more aware of some probs people had with coins dissapearing in the cylinder head!! etc I decided to go the way of blanking plates from Allans.only £12 and in my opinion made a good deal of difference to the whole feel of the Bongo under acceleration.
Yes, maybe a little more time to fit than just pulling off a jubilee clip and stuffing the ball in but in my mind, as you get older maybe a little more peace of mind!!
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Steve L
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by Steve L » Fri Nov 02, 2007 11:43 am
I blocked my egr off last week using the blanking plates from Allans Vehicle Services. This system leaves the egr system in situ so can be reconnected later. Correct me if I'm wrong but I think the Nick Skidmore set up was if you wanted to completely remove the system.
I must say that I've not noticed any improvement in performance and its a little too early to measure the fuel consumption.
If you are going to tackle the job please be careful of the threads in the manifold where the egr connects at the front end of the inlet manifold. Someone had obviously overtightened one of the nuts on mine so when I removed it most of the threads came out with it as well. I managed to clean the remaining threads up with a tap so it nips up (just), but with the manifold being alloy the threads are very fragile.
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dandywarhol
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by dandywarhol » Fri Nov 02, 2007 12:12 pm
Can someone tell me the benefit of blanking off the plates opposed to disabling the vacuum unit which stops the gas going into the inlet manifold?
The vacuum unit can be disabled in 5 minutes by removing and blanking off the pipe leading to it.
Whale oil beef hooked
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Ralph
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by Ralph » Fri Nov 02, 2007 12:22 pm
I blanked off the vacuum pipe with a small ball and have
done other cars the last had a faulty control valve and
had a black fog fallowing it, he had been quoted £800 to
fix, stuffed a ball in he was not convinced but was back
a day later car running as clean as a whistle he just could
not believe it.
The only time I can see this not working is if the erg valve
it's self is stuck open in this case the kit is the way to go.
I suppose the kit is the best option if you can be bothered I
cant lazy sod.
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heatherpetch
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by heatherpetch » Fri Nov 02, 2007 6:20 pm
missfixit70 wrote:heatherpetch wrote:we had the egr removed completely when new exhaust fitted.
Was this the exhaust recirc bit under the chassis that is actually part of the exhaust as the cold start doohickey, or the egr system on the engine that returns air from the turbo back into the air inlet manifold? If it's the former it isn't the egr. Not trying to be picky, just curious as to why they removed the egr with the exhaust & how they did it soo quickly?

i cant honestly say all i know is the guy said and showed us a thing that he called the egr and said he removed it cause it was ceased open any way.So your guess is as good as mine.

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heatherpetch
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by heatherpetch » Fri Nov 02, 2007 6:21 pm
missfixit70 wrote:heatherpetch wrote:we had the egr removed completely when new exhaust fitted.
Was this the exhaust recirc bit under the chassis that is actually part of the exhaust as the cold start doohickey, or the egr system on the engine that returns air from the turbo back into the air inlet manifold? If it's the former it isn't the egr. Not trying to be picky, just curious as to why they removed the egr with the exhaust & how they did it soo quickly?

i cant honestly say all i know is the guy said and showed us a thing that he called the egr and said he removed it cause it was ceased open any way.So your guess is as good as mine.
