fuel tank

Technical questions and answers about the Mazda Bongo

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Mack
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fuel tank

Post by Mack » Tue May 26, 2009 8:55 am

When I go to fill up the tank will only take about £20 worth before iit begins to overflow. This could be a problem on long journeys. Any suggestions re. cause and cure?
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apole
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Re: fuel tank

Post by apole » Tue May 26, 2009 9:25 am

Hi,

Could you have a problem with the tank venting, there is normally a way for the air to escape the tank as you are filling it, if this were blocked I suspect it would make filling up quite difficult.

What happens when you fill up, does it just stop as if it's full, or does it splutter and blow back a bit?

http://www.lushprojects.com/bongopartsm ... mgno=.html


Above shows there are vent pipes etc on the tank, worth maybe checking these out.
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Mack
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Re: fuel tank

Post by Mack » Tue May 26, 2009 9:35 am

I hear it gurgle a bit and the filler cuts out. If I pull it out a bit, thinking that it might still fill, it will spurt back at me. It's expensive stuff to leave on the forecourt!
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westonwarrior
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Re: fuel tank

Post by westonwarrior » Tue May 26, 2009 9:47 am

are you sure its not full and the sender faulty

Have you put a can of fuel and running it beyond empty

bad earths on the sender unit have been known to give low readings
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Mack
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Re: fuel tank

Post by Mack » Tue May 26, 2009 9:50 am

I'm scared to risk running it till empty. The gauge never goes much beyond half way though and I fill up at anything below quarter full.
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westonwarrior
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Re: fuel tank

Post by westonwarrior » Tue May 26, 2009 10:00 am

I know if I am gental with it I can fill it till I can see the diesel in the spout.

sender unit
http://www.igmaynard.co.uk/bongo/forum/ ... arth+gauge
Also

http://www.igmaynard.co.uk/bongo/forum/ ... uel+sender
sound similar
David Edwards
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Re: fuel tank

Post by David Edwards » Tue May 26, 2009 10:17 am

If the gauge never goes beyond half then ts a gbood bet the sender is faulty or needs cleaning or re earthing, easy to to loads on here about it.
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Mack
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Re: fuel tank

Post by Mack » Tue May 26, 2009 10:23 am

Thank you all, especially Westonwarrior for the link. I can see how to get to the plate and access the sender, but then it just looks like a load of mucky tubes and I am lost. What do I do next? Answers please in simple words for a technophobe.....
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westonwarrior
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Re: fuel tank

Post by westonwarrior » Tue May 26, 2009 10:38 am

I have never had to do this but as far as I can tell

there is an electrical connector with 2 wires, 1 of them is the earth, from the link I posted it seams you attach a piece of wire and earth it to the screws on the cover.

I think I would disconnect the block and try electrical cleaner first
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helen&tony
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Re: fuel tank

Post by helen&tony » Tue May 26, 2009 11:10 am

Hi
Don't worry...just get the tools out and do it....it's one of the easy jobs on a Bongo
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Mack
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Re: fuel tank

Post by Mack » Tue May 26, 2009 11:37 am

Ah tools! Which ones? Screw-driver and pliers? what sort of wire? Sorry, I know I'm hopeless - I can paint you a picture of an engine, just don't ask me to strip one down!
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chipvan
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Re: fuel tank

Post by chipvan » Tue May 26, 2009 12:00 pm

have had the same probem on a berlingo van,to me it sounds like the sender unit as well
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Re: fuel tank

Post by David Edwards » Tue May 26, 2009 2:00 pm

Well once you get the plate off you will be able to trace the earth wire, then just clean it and the body contact, I drilled another hole and made a second back up earth connection as a failsafe, still going strong, it is easy, it must be cause I did it,lol.
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