Technical questions and answers about the Mazda Bongo
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jonesybach
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by jonesybach » Thu Jul 19, 2007 9:55 pm
Greetings one and all, I've had my Bongo for a few mths now

and been watching you lot for a while longer, I would of jumped in sooner but didn't want to seem an idiot for buying a motor which is carring a few snags

. I thought I'd try and sort it my self before asking for help, It's a man thing! I bought her off a very good mate, in the middle of a particularly heavy drinking sesh, but I did get her for an extremly good price. He told me every fault on the wagon the main one being she'll start ok and then after a short time the rev's drop off and stalls. She'll turn over and eventually start but when I drive her for the 1st 5 mins or so if the engine isn't under load then she'll stall. I've changed the fuel and air filters, replaced the glow plugs and looked for any fuel leaks. 2ndly The odometer isn't working any help will be ......a help
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francophile1947
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by francophile1947 » Thu Jul 19, 2007 10:01 pm
Welcome to the madhouse.
First problem could be the glow plug relay - Bongo glow plugs stay on for quite a long time after the engine has started. They go off when accelerating and should come on again when idling, until engine is warm. If engine is not warm enough, it may stall without the glowplugs working.
No idea about odometer I'm afraid - sorry!
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
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ChrisEm
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by ChrisEm » Thu Jul 19, 2007 10:02 pm
Have you checked the small gauze filter in the injection pump under the banjo bolt where the fuel supply hose is connected. It is often overlooked and could be adding to your woes.
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paul9
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by paul9 » Fri Jul 20, 2007 12:35 am
Definetly sounds like a fuel problem,just had this sort of thing with mine,although i have a inline filter fitted it had become blocked,as i run mine on veg oil,but thats a different story,anyway as these are self bleeding it would run for around 5-10 miles then cut out,turn over a few times ,start then go again for 5-10 miles,new inline fitted and as good as new,as ChrisEm says could be the gauze filter in the pump

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Steve L
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by Steve L » Sun Jul 22, 2007 3:37 pm
I have had a few diesels in the past (pre Bongo days) and the symptoms you describe appears to be the stop solenoid malfunctioning. The stop solenoid apparently is the thing that activates when you turn the ignition off, it actually cuts off the supply of diesel (instead of the electricity on a petrol car). When this malfunctions the engine only works intermittently. Not having sight of a workshop manual I dont know whether the Bongo has one of these. But if it does check it as a very likely culprit.
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brorabongo
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by brorabongo » Sun Jul 22, 2007 7:16 pm
ChrisEm wrote:Have you checked the small gauze filter in the injection pump under the banjo bolt where the fuel supply hose is connected. It is often overlooked and could be adding to your woes.
I'm interested in this banjo bolt/filter, I would like to check mine. Is it a case of removing the rusted allan screw head(in photo). Then undo the bolt?

Cheers
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Run your fingers over my Bongo, and I'll run my Bongo over your fingers!!

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francophile1947
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by francophile1947 » Sun Jul 22, 2007 8:11 pm
No - when you remove the fuel pipe from the pump, the wire strainer is in the bottom of the hole on the pump.
John
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brorabongo
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by brorabongo » Sun Jul 22, 2007 8:24 pm
Cheers francophile1947
This fuel pipe, is it the one coming from the filter ( fitting on the filter which shows an arrow heading outwards) and going to the RHS of the pump? If I remember rightly.
I would go out and check but it's now Peeing down (hope Mikeonb4c does not read this as he thinks it's always sunny up here

)
ボンゴの激怒 pictures
Run your fingers over my Bongo, and I'll run my Bongo over your fingers!!

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francophile1947
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by francophile1947 » Sun Jul 22, 2007 8:30 pm
Yep - comes from the filter to the pump banjo connection - when you remove the banjo, the strainer is in the bottom of the hole - be careful when poking around inside the hole to get the strainer out - I used a cotton bud.
John
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mikeonb4c
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Contact:
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by mikeonb4c » Sun Jul 22, 2007 10:11 pm
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brorabongo
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by brorabongo » Sun Jul 22, 2007 10:21 pm
Damn I've been caught out

. Honestly it only started this evening
I will check this banjo/filter thing out tomorrow after work, weather permitting

ボンゴの激怒 pictures
Run your fingers over my Bongo, and I'll run my Bongo over your fingers!!

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brorabongo
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by brorabongo » Mon Jul 23, 2007 8:38 pm
Please sir...
Is it just a case undoing the bolt at top of picture? and being carefull with seals etc? and the allan key I have heard mentioned, is used for the screw on the bracket(side-on), at bottom of picture?
I have noticed no-ones done a fact sheet on this

also I think I have worked out why it's called a banjo

ボンゴの激怒 pictures
Run your fingers over my Bongo, and I'll run my Bongo over your fingers!!

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francophile1947
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by francophile1947 » Mon Jul 23, 2007 9:13 pm
That looks like the one (it's pi**sing down at the moment so can't be bothered to go and look

).
You only need to undo the bolt, and move the banjo, to get at the strainer - nothing else to undo and no problem with seals etc.
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
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brorabongo
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by brorabongo » Mon Jul 23, 2007 9:16 pm
Thanks for that. I now feel that I could tackle the job
Bl***Y rain here again too, but mus'nt grumble!!. Believe it or not our river needs it

ボンゴの激怒 pictures
Run your fingers over my Bongo, and I'll run my Bongo over your fingers!!

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jonesybach
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by jonesybach » Mon Jul 23, 2007 9:55 pm
Managed to sort out the odometer problem, just a case of removing the plastic cover to the dials and moving the counter around one notch and bingo, it be a goer. I wish the idle problem was as simple. I've checked the banjo filter- cleaner then a clean thing, starting to think opening my wallet and saying help yourself to the local diesel expert is on the cards.
