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Fuel Gauge....Series MM

 
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oliver-morrisminor
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Joined: 14 Nov 2005
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Location: Brisbane, Redlands.

PostPosted: Sun Sep 04, 2011 8:26 am    Post subject: Fuel Gauge....Series MM Reply with quote

Yesterday we finished up all the electrics on my tourer, but I noticed that when the ignition was turned on the fuel guage was reading full on an empty tank. I did not have time to investigate further, but has anybody got any clues please?



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oliver-morrisminor

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1950 Series MM Tourer
1960 MM1000 2 Door Datsun Powered
1973 Leyland Marina Coupe
BRISBANE SOUTHSIDE MORRIS MINOR CAR CLUB Inc.
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The Toss
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Joined: 25 Feb 2010
Posts: 96
Location: Newcastle

PostPosted: Sun Sep 04, 2011 9:50 am    Post subject: Reply with quote

You have obvious;y gone from a +ve earth system to a -ve earth. It is a matter of reversing the polarity on the fuel guage. Simple to say maybe not so simple to do. You may need to find an arrangement to insulate the fuel guage body from the dash metalwork.


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Lukezaid
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Joined: 01 Feb 2010
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Location: Woolgoolga

PostPosted: Sun Sep 04, 2011 6:45 pm    Post subject: Reply with quote

Do the Wipers work?
Mine was having problems and if you check out the wiring diagram it is the fuel gauge and something???? that is strangely conected well it looks that way when you are not well edumacated on wiring? correct me if I am wrong


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oliver-morrisminor
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Location: Brisbane, Redlands.

PostPosted: Mon Sep 05, 2011 4:45 pm    Post subject: Reply with quote

Thanks Toss and Luke. Yes ity maybe Pos to Neg earth and yes the wipers are working....



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oliver-morrisminor

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1950 Series MM Tourer
1960 MM1000 2 Door Datsun Powered
1973 Leyland Marina Coupe
BRISBANE SOUTHSIDE MORRIS MINOR CAR CLUB Inc.
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oliver-morrisminor
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Joined: 14 Nov 2005
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Location: Brisbane, Redlands.

PostPosted: Sat Sep 10, 2011 6:22 pm    Post subject: Reply with quote

A friend suggested to reomve the tank feed wire to see if it made a differance, and to see if it is the gauge or sender.

tried that and no differance, still reads FULL when empty.....?



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oliver-morrisminor

www.morrisminorspares.biz/

1950 Series MM Tourer
1960 MM1000 2 Door Datsun Powered
1973 Leyland Marina Coupe
BRISBANE SOUTHSIDE MORRIS MINOR CAR CLUB Inc.
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grant69
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Joined: 27 Jan 2004
Posts: 2796
Location: Cairns Nth Qld

PostPosted: Sat Sep 10, 2011 6:31 pm    Post subject: Reply with quote

Oli, I suggest you have an earthing problem, I am not familiar with the electrics in lowlights, but I would remove the gauge from the dash and rehook it up hanging free under the dash and see if works ok like that. That will tell you if it is a sender or gauge problem, is your fuel tank earthed ? I will go read a manual and see If I can work out what is happening. Let me know your findings


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frosty
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Joined: 23 Dec 2003
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Location: 4559 near a big pineapple, Qld

PostPosted: Sun Sep 11, 2011 11:16 am    Post subject: Reply with quote

Are the wires on the correct terminals? - have they been switched around?



check both the tank and guage



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