Dodgy fuel guage

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
User avatar
briwy
Supreme Being
Posts: 1754
Joined: Thu Jul 22, 2010 11:12 pm
Location: Peak District

Dodgy fuel guage

Post by briwy » Wed Nov 10, 2010 7:24 pm

My fuel gauge doesn't read full when it is. Reads just over the three quarters mark with the tank brimmed.

Not a big problem, but just wondered if there's a simple fix.

Any ideas please.
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: Dodgy fuel guage

Post by francophile1947 » Wed Nov 10, 2010 7:30 pm

Replace, clean or repair the earth wire to the tank unit, or put a totally new earth wire to the tank 8)
There's loads on here about it if you look back through the threads or do a search :D
There's also a fact sheet here http://www.igmaynard.co.uk/bongo/member ... sender.pdf
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
lazyb5
Tribal Elder
Posts: 505
Joined: Fri Sep 17, 2010 9:15 pm
Location: Peterborough

Re: Dodgy fuel guage

Post by lazyb5 » Wed Nov 10, 2010 7:32 pm

Hi Briwy it may be a bad earth, mine was, and its a very simple fix. If you have access to the factsheets the details are on there. Basically after 15 years the earth on the tank can become erratic and it needs to be fixed. A case of cleaning around one of the screws on the top of the tank and connecting this to the earth return.
Image
User avatar
briwy
Supreme Being
Posts: 1754
Joined: Thu Jul 22, 2010 11:12 pm
Location: Peak District

Re: Dodgy fuel guage

Post by briwy » Wed Nov 10, 2010 11:03 pm

Thanks guys.

Glad it sounds an easy job.
User avatar
briwy
Supreme Being
Posts: 1754
Joined: Thu Jul 22, 2010 11:12 pm
Location: Peak District

Re: Dodgy fuel guage

Post by briwy » Fri Nov 12, 2010 9:11 pm

Whereabouts exactly is the service plate to the fuel tank?

I've only got short seat rails so I'm wondering if I will have to take the middle seats out to enable me to get the carpet up over the hatch.

Is it just the carpet that covers the plate or does it go under the side trim as well?
User avatar
mister munkey
Supreme Being
Posts: 5184
Joined: Mon Oct 01, 2007 9:11 pm
Location: Not Far From Royston Vasey, West Yorkshire
Contact:

Re: Dodgy fuel guage

Post by mister munkey » Fri Nov 12, 2010 9:20 pm

briwy wrote:My fuel gauge doesn't read full when it is. Reads just over the three quarters mark with the tank brimmed.


Any ideas please.

Mine does the same. HOWEVER - It runs well past the E mark, if i fill it on empty, it'll take 40 or so litres 45 max.

I tend to run it untill its dropped past the E, but even then theres still 10l left.

At some point I shall pop the needle off & move it up to fit, but I quite enjoy frightening Mrs M when playing Fuel Guage Roullette in out of the way places.


:lol: :lol: :lol:
The only true wisdom is in knowing you know nothing. http://www.travelblog.org/Bloggers/MisterMunkey
User avatar
g8dhe
Supreme Being
Posts: 10854
Joined: Sun Apr 13, 2008 10:06 pm
Location: Worthing, West Sussex.

Re: Dodgy fuel guage

Post by g8dhe » Fri Nov 12, 2010 9:39 pm

briwy wrote:Whereabouts exactly is the service plate to the fuel tank?
This thread from Kirsty has excellent pictures http://www.igmaynard.co.uk/bongo/forum/ ... 2&p=278590
Also if you can't access it from the top then 321Away's suggestion also helps http://www.igmaynard.co.uk/bongo/forum/ ... 8&p=384883
Geoff
2001 Aero V6, AFT, full side conversion.
User avatar
briwy
Supreme Being
Posts: 1754
Joined: Thu Jul 22, 2010 11:12 pm
Location: Peak District

Re: Dodgy fuel guage

Post by briwy » Fri Nov 12, 2010 11:10 pm

Thanks Geoff.

Looks like 321s solution is the easiest option
Post Reply

Return to “Techie Stuff”