Panic! Poorly Bongo.

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

User avatar
missfixit70
Supreme Being
Posts: 12431
Joined: Fri Jun 01, 2007 3:53 pm
Location: weymouth

Re: Panic! Poorly Bongo.

Post by missfixit70 » Sat Nov 01, 2008 5:21 pm

Factsheet in the members area - http://www.igmaynard.co.uk/bongo/member ... ts/EGR.pdf - or if you do a search on EGR, there are some photos & stuff somewhere, I'd stick a blank of some sort where the egr pipe enters the air intake manifold at the front drivers side of the engine, the egr valve may be jammed?
You can't polish a turd - but you can roll it in glitter.
User avatar
dandywarhol
Supreme Being
Posts: 5446
Joined: Mon Dec 19, 2005 10:18 pm
Location: Edinburgh

Re: Panic! Poorly Bongo.

Post by dandywarhol » Sat Nov 01, 2008 5:28 pm

sparkymik wrote:Squirrels nuts :roll:


Sparky
A friend's Peugeot 309 caught fire when burning squirrel nuts got sucked up the air intake and ignited the fuel in the carb! :shock: The nuts were stored on top of the exhaust manifold when the car was parked up for a couple of months.
Whale oil beef hooked
Renault Lunar Telstar
Yamaha TD1C 250, Merc SLK200, KTM Duke 690
John and Kim

Re: Panic! Poorly Bongo.

Post by John and Kim » Sat Nov 01, 2008 6:09 pm

Ok, managed to find the pictures of the 'Pipe block method' and although not too clear (the EGR was invisible in one piccy and the 'removed' pipe was relocated already in the other piccy) I now now to remove the pipe from the diaphragm thingy and block it off with a bolt.

UPDATE................

OK blank'd it off, no difference at all, Bah!

ANY ideas???

Regards to all

JnK.
User avatar
dandywarhol
Supreme Being
Posts: 5446
Joined: Mon Dec 19, 2005 10:18 pm
Location: Edinburgh

Re: Panic! Poorly Bongo.

Post by dandywarhol » Sun Nov 02, 2008 12:29 am

As Kirsy says - blanking it off from the pipe is the only real solution - just blocking the pipe won't work if the valve is jamed open...........

Don't think thats your problem though - EGR smoke problems tends to be a gradual thing...............did you try taking off the intake pipe to check for a blockage?
Whale oil beef hooked
Renault Lunar Telstar
Yamaha TD1C 250, Merc SLK200, KTM Duke 690
User avatar
mikeonb4c
Supreme Being
Posts: 22877
Joined: Sun Nov 05, 2006 10:49 pm
Location: Living with Mango Bongo in the North West but with a tendency to roam
Contact:

Re: Panic! Poorly Bongo.

Post by mikeonb4c » Sun Nov 02, 2008 1:09 am

Hi John and Kim.

My first reaction is don't panic - with luck this wil turn out to be simple. Whereabouts are you (might help us point you to a good Bongo specalist if it comes to that). Also, was Bongo from a dealer and can you get them to fix it under warranty?

If it were to be the turbo, I notice there are a couple for sale on ebay just now.

Good luck and keep posting

Mike 8)
bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Re: Panic! Poorly Bongo.

Post by bigdaddycain » Sun Nov 02, 2008 2:26 am

John and Kim wrote:On the EGR valve thingy, I'm not sure if mine is fitted? (2005) as I can't see the pipe that you'd normally block off? I saw the piccy on here somewhere but the pipe is not there? just the one with ridged foil and the throttle cable. I will endeavour to find it, 'where it be?' (as they say in Brisol!)

JnK

and............No Badgers! Removed the filter and pipe to carb...............
I'm not suprized the EGR blanking didn't work in this case, you mention your bongo is a 2005 model?

That means you have effectively two EGR systems, one feeding from electrical pulse via your ECU, the other mechanical.

If there was a problem with the EGR, you would have a flashing "hold" light on your dash,and the ECU would default to "limp home mode".

I still suspect contaminated fuel, have you used bio diesel at all?
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
John and Kim

Re: Panic! Poorly Bongo.

Post by John and Kim » Sun Nov 02, 2008 10:08 am

Thanks for all the advice, OK to answer a few questions;

The Bongo was bought privately driven home with no problems at 70-80 mph for 60 miles from Bridgewater to Bristol where I live. It has been parked on the drive for a couple of months and started on occasion to warm up the inside to let my kids play in it.

I decided to tax it this month so drove it a couple of hundred yards down the road intending to take it for a spin. I didn't really notice anything was wrong until I set off for a second time and the engine had warmed up. The engine will not rev over 2500 rpm and altho' will come out of 1st will kick down with large plumes of smoke smelling of unburnt fuel billowing out of the exhaust.

So that's all really, I've removed the air intake and blanked off the EGR pipe with no difference, even revving it in neutral has exactly the same effect. No flashing Hold light, normal diesel only a couple of months old and will tick over and rev upto 2000 rpm fine.

Will have a poke around and check cables, turbo etc.

Still hoping someone has had the same problem?

I think BELL HILL is my nearest specialist (unless anyone know any different)

Rather fix it myself tho'!
User avatar
mikeonb4c
Supreme Being
Posts: 22877
Joined: Sun Nov 05, 2006 10:49 pm
Location: Living with Mango Bongo in the North West but with a tendency to roam
Contact:

Re: Panic! Poorly Bongo.

Post by mikeonb4c » Sun Nov 02, 2008 11:06 am

I can only think you'll need to eliminate things one by one, starting with checking for blockages, filter cleaning / replacement, and other stuff like EGR (some peeps remove fuel filter and fill it with pure diesel injector / cleaner then reassemble and start the engine) then moving on to stuff like the turbo, the throttle sensor (Dandywarhol recently had a problem like this) etc.

Out of interest, is coolant level good and does coolant look clear (not muddy or rusty). I can't think you have a head problem if it ran home fine and now suddently doesn't run at all.

Is it really a 2005 Bongo? I wasn't sure if they even manufactured them that late. Is it a 'registered in UK in 2005' model.

On garages, I can't think where Bell Hill are. There's Protech in Nailsea I think I recall reading, and maybe Algys the Bongo importers in Bristol could steer you right - worth asking them.

Good luck and keep us posted. 8)
John and Kim

Re: Panic! Poorly Bongo.

Post by John and Kim » Sun Nov 02, 2008 12:12 pm

OK, Bell Hill's near Bath but Nailsea may be nearer for me.

Meant 1995!

Water level is fine and the engine comes upto the the 10:30 temperature fine as previously stated is fine upto 2000 rpm but then just wont rev past that even with my foot flat on the floor. I don't know enough about the engine to go much further (but have no problem with mechanics) but maybe some sensor error altho' then I guess a flashing hold light?

I removed the pipe on the 'cold' side of the turbo and the vanes spin fine and besides the smoke coming out the exhaust if definitely unburnt fuel and not oil.

I'm still open to any suggestions but will have no time after this weekend so it'll be off to the garage, just hope it is something simple and therefore not too expensive.

I will post the results!

Anyone?

JnK.
User avatar
maxheadroom
Supreme Being
Posts: 1950
Joined: Wed Feb 28, 2007 6:37 pm
Location: Gloucester

Re: Panic! Poorly Bongo.

Post by maxheadroom » Sun Nov 02, 2008 2:50 pm

Just a thought try driving without the fuel cap on :D
Keep the Faith

Image
User avatar
haydn callow
Supreme Being
Posts: 5777
Joined: Mon Jan 08, 2007 9:50 pm
Location: Somerset
Contact:

Re: Panic! Poorly Bongo.

Post by haydn callow » Sun Nov 02, 2008 4:06 pm

Try ABS...South Liberty Lane ..Ashton..Bristol.....BS3 2TW...if it's nearer
http://www.coolantalarm.co.uk
Developer of the Mazda Bongo Coolant loss Alarm
Also BMW Clocks
User avatar
mikeonb4c
Supreme Being
Posts: 22877
Joined: Sun Nov 05, 2006 10:49 pm
Location: Living with Mango Bongo in the North West but with a tendency to roam
Contact:

Re: Panic! Poorly Bongo.

Post by mikeonb4c » Sun Nov 02, 2008 11:17 pm

One suggestion that came up recently was to disconnect the fuel line from beyond the fuel filter and let it use some clean diesel from a container, bypassing the filters. If it then runs fine, you have a good idea of the problem. Also, have you tried some diesel injector cleaner in case it helps?
phedders
Bongolier
Posts: 167
Joined: Mon Jun 20, 2005 8:22 am
Location: Coulsdon (Surrey/London)
Contact:

Re: Panic! Poorly Bongo.

Post by phedders » Sun Nov 02, 2008 11:28 pm

Erm I might be being daft - but is one or more pot not getting compression? ie head or valve problem or possiblly leakage around a plug?

Just thinking unburnt fuel, lack of power etc.
Location says where I am... I'd rather be justabout anywhere else! Suggestions or job offers of/in other parts of the UK gladly received...
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: Panic! Poorly Bongo.

Post by teenmal » Mon Nov 03, 2008 1:42 pm

phedders wrote:Erm I might be being daft - but is one or more pot not getting compression? ie head or valve problem or possiblly leakage around a plug?

Just thinking unburnt fuel, lack of power etc.
Good reply Phedders,the engine might only be running on 3 cylinders due to a faulty injector(s).

Mal..
John and Kim

Re: Panic! Poorly Bongo.

Post by John and Kim » Mon Nov 03, 2008 4:02 pm

Thanks to all for all your suggestions. Alas I have run out of time so have taken it to the garage.

Thanks to Haydn for the reommendation but did wonder why I couldn't find them.

It's ADS Automotive, Unit 200, South Liberty Lane, Bristol; 0117 9635999

They're picking it up tomorrow.

I'll let you know how I get on.

JnK.
Locked

Return to “Techie Stuff”