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nzdattoman
Re: has anyone had this problem???
#13
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Posted on: 2008/10/26 7:41
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Some wag has summed up the three laws of thermodynamics in
everyday terms: 1. You can't win. 2. You can't even break
even. 3. You can't get out of the game.
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nzdattoman
Re: has anyone had this problem???
#12
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thanks levey, I will have a better look, it seems to be coming on and off now, so a bad earth mite be the go. Thanks everyone for your advice.

Posted on: 2008/10/26 7:39
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Some wag has summed up the three laws of thermodynamics in
everyday terms: 1. You can't win. 2. You can't even break
even. 3. You can't get out of the game.
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levey
Re: has anyone had this problem???
#11
No life (a.k.a. DattoMaster)
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Sounds like the guages are earthing out fully, pretty sure they rely on variable negative power to give a reading. The unit is fed constant positive (with ignition on) but the sender varies the negative (more negative (Earth) heats up the Bi-metal strip and give a higher reading on the guage), anyway, sounds like an earth short.

Posted on: 2008/10/25 15:15
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Datsun 1200 2Dr sedan.
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LONGBROW
Re: has anyone had this problem???
#10
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Quote:

nzdattoman wrote:
Hi Longbrow

Thanks for that. I have had a look at the tech section and it seems the regulator is the problem, I still can't seem to locate it... can anyone tell me where it lives.


Salutations to you as well.
Please See Re: Voltage Regulator (Instrument Panel) post in Main Forum.
In the B210 "it" lives within the Water temp gauge.

Posted on: 2008/10/25 5:04
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"from the land of the graceless bumper"
'78 B210GX BREwannabe'
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nzdattoman
Re: has anyone had this problem???
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Hi Longbrow

Thanks for that. I have had a look at the tech section and it seems the regulator is the problem, I still can't seem to locate it... can anyone tell me where it lives.

Posted on: 2008/10/24 21:21
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Some wag has summed up the three laws of thermodynamics in
everyday terms: 1. You can't win. 2. You can't even break
even. 3. You can't get out of the game.
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LONGBROW
Re: has anyone had this problem???
#8
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Quote:

nzdattoman wrote:
what i meant by disconnected, was I disconnected the fuel tank wire to see if it still read full and it did, I have been looking for the voltage regulater and no luck yet.. I will get out my manual and have a good look through the wiring diagram, thanks everyone for your help.

See Re: Voltage Regulator (Instrument Panel) post in Main Forum.
Typically in DC indicating systems, a needle will ride high if it has a partial ground or, peg out when there is an open (no ground)

Posted on: 2008/10/24 14:40
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"from the land of the graceless bumper"
'78 B210GX BREwannabe'
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nzdattoman
Re: has anyone had this problem???
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what i meant by disconnected, was I disconnected the fuel tank wire to see if it still read full and it did, I have been looking for the voltage regulater and no luck yet.. I will get out my manual and have a good look through the wiring diagram, thanks everyone for your help.

Posted on: 2008/10/24 7:34
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everyday terms: 1. You can't win. 2. You can't even break
even. 3. You can't get out of the game.
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Dodgeman
Re: has anyone had this problem???
#6
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Disconnected? What have you disconnected?

If it's the battery lead that ypu have disconnected at the battery terminal & your 1200 model gauges still read full/hot then the gauges are now shot, but the cause would most likely be the instrument voltage regulator.

If the instruments really are showing full/hot with the battery lead disconnected, then a pre loved instrument cluster might be an economic proposition instead of replacing individual parts.

Posted on: 2008/10/24 3:42
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Rallytwit
Re: has anyone had this problem???
#5
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Dattofrog this does sound like a Ford instrument voltage regulator, my E250 Camper van just did this.

Now for the topic.........First step get out the manual and go step by step through the harness/gauge pack but is sure does sound like a some sort of regulator problem.

Tom

Posted on: 2008/10/24 2:06
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Graemes50
Re: has anyone had this problem???
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The offending item is called a Voltage Regulator.
It is designed to supply a pulsed 12V feed to the Fuel and Temp gauges to compensate for temperature and voltage fluctuations.
It is usually a bi-metallic strip with a pair of contacts on it to interrupt the 12V feed.
You may be able to open it up and clean the contacts to repair it.
Nissan should be able to supply a replacement it you can't repair it

Posted on: 2008/10/24 0:45
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Nissanman - just trying to help...
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