L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

http://www.monsterslayer.com/jeep/Gauges.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

William Oliveri wrote:
>
> I just installed new fuel and oil pressure gauges from Autometer. Now my
> temperature gauge doesn't work.
>
> Can the temp gauge be run without connecting to the fuel gauge (there's a
> crossover there which combines the two) and if so how is it configured?
>
> Thanks,
>
> Bill

SB

You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
and tie them in series.
Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
5 volts from where these two join.

I don't know how picky these gauges are about their 5volts!! But note that
+12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
it out!



"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40AB796C.3C341383@sympatico.ca...
> Yes.
>
> Here is a link on a regulator:
>
> http://members.aol.com/moparnuts/modify.htm
>
> Mike
>
> William Oliveri wrote:
> >
> > So if I under stand you correctly I the voltage regulator would drop 12
> > volts down to 5 to power the gauge. Is this correct?
> >
> > Is so It would look like this:
> >
> > 12v source -> 5v regulator -> To pole on temp gauge opposite sender
pole.
> >
> > Yes?
> >
> > Thanks,
> >
> > Bill
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40AB6A5E.A2FA11C1@sympatico.ca...
> > > Nope.
> > >
> > > The power for the temp gauge comes from a voltage regulator built into
> > > the gas gauge via that copper strip. It needs 5 volts.
> > >
> > > You 'can' just make up a small electronic voltage regulator to power
up
> > > the gauge, they are pretty easy to make if you know how to solder.
> > >
> > > Here is a good link on how the stock gauges works:
> > >
> > > http://www.off-road.com/jeep/tech/electrical/gauges/
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > I just installed new fuel and oil pressure gauges from Autometer.
Now
> > my
> > > > temperature gauge doesn't work.
> > > >
> > > > Can the temp gauge be run without connecting to the fuel gauge
(there's
> > a
> > > > crossover there which combines the two) and if so how is it
configured?
> > > >
> > > > Thanks,
> > > >
> > > > Bill

SB

You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
and tie them in series.
Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
5 volts from where these two join.

I don't know how picky these gauges are about their 5volts!! But note that
+12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
it out!



"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40AB796C.3C341383@sympatico.ca...
> Yes.
>
> Here is a link on a regulator:
>
> http://members.aol.com/moparnuts/modify.htm
>
> Mike
>
> William Oliveri wrote:
> >
> > So if I under stand you correctly I the voltage regulator would drop 12
> > volts down to 5 to power the gauge. Is this correct?
> >
> > Is so It would look like this:
> >
> > 12v source -> 5v regulator -> To pole on temp gauge opposite sender
pole.
> >
> > Yes?
> >
> > Thanks,
> >
> > Bill
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40AB6A5E.A2FA11C1@sympatico.ca...
> > > Nope.
> > >
> > > The power for the temp gauge comes from a voltage regulator built into
> > > the gas gauge via that copper strip. It needs 5 volts.
> > >
> > > You 'can' just make up a small electronic voltage regulator to power
up
> > > the gauge, they are pretty easy to make if you know how to solder.
> > >
> > > Here is a good link on how the stock gauges works:
> > >
> > > http://www.off-road.com/jeep/tech/electrical/gauges/
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > I just installed new fuel and oil pressure gauges from Autometer.
Now
> > my
> > > > temperature gauge doesn't work.
> > > >
> > > > Can the temp gauge be run without connecting to the fuel gauge
(there's
> > a
> > > > crossover there which combines the two) and if so how is it
configured?
> > > >
> > > > Thanks,
> > > >
> > > > Bill

SB

You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
and tie them in series.
Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
5 volts from where these two join.

I don't know how picky these gauges are about their 5volts!! But note that
+12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
it out!



"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40AB796C.3C341383@sympatico.ca...
> Yes.
>
> Here is a link on a regulator:
>
> http://members.aol.com/moparnuts/modify.htm
>
> Mike
>
> William Oliveri wrote:
> >
> > So if I under stand you correctly I the voltage regulator would drop 12
> > volts down to 5 to power the gauge. Is this correct?
> >
> > Is so It would look like this:
> >
> > 12v source -> 5v regulator -> To pole on temp gauge opposite sender
pole.
> >
> > Yes?
> >
> > Thanks,
> >
> > Bill
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40AB6A5E.A2FA11C1@sympatico.ca...
> > > Nope.
> > >
> > > The power for the temp gauge comes from a voltage regulator built into
> > > the gas gauge via that copper strip. It needs 5 volts.
> > >
> > > You 'can' just make up a small electronic voltage regulator to power
up
> > > the gauge, they are pretty easy to make if you know how to solder.
> > >
> > > Here is a good link on how the stock gauges works:
> > >
> > > http://www.off-road.com/jeep/tech/electrical/gauges/
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > I just installed new fuel and oil pressure gauges from Autometer.
Now
> > my
> > > > temperature gauge doesn't work.
> > > >
> > > > Can the temp gauge be run without connecting to the fuel gauge
(there's
> > a
> > > > crossover there which combines the two) and if so how is it
configured?
> > > >
> > > > Thanks,
> > > >
> > > > Bill

SB

You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
and tie them in series.
Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
5 volts from where these two join.

I don't know how picky these gauges are about their 5volts!! But note that
+12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
it out!



"Mike Romain" <romainm@sympatico.ca> wrote in message
news:40AB796C.3C341383@sympatico.ca...
> Yes.
>
> Here is a link on a regulator:
>
> http://members.aol.com/moparnuts/modify.htm
>
> Mike
>
> William Oliveri wrote:
> >
> > So if I under stand you correctly I the voltage regulator would drop 12
> > volts down to 5 to power the gauge. Is this correct?
> >
> > Is so It would look like this:
> >
> > 12v source -> 5v regulator -> To pole on temp gauge opposite sender
pole.
> >
> > Yes?
> >
> > Thanks,
> >
> > Bill
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:40AB6A5E.A2FA11C1@sympatico.ca...
> > > Nope.
> > >
> > > The power for the temp gauge comes from a voltage regulator built into
> > > the gas gauge via that copper strip. It needs 5 volts.
> > >
> > > You 'can' just make up a small electronic voltage regulator to power
up
> > > the gauge, they are pretty easy to make if you know how to solder.
> > >
> > > Here is a good link on how the stock gauges works:
> > >
> > > http://www.off-road.com/jeep/tech/electrical/gauges/
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > I just installed new fuel and oil pressure gauges from Autometer.
Now
> > my
> > > > temperature gauge doesn't work.
> > > >
> > > > Can the temp gauge be run without connecting to the fuel gauge
(there's
> > a
> > > > crossover there which combines the two) and if so how is it
configured?
> > > >
> > > > Thanks,
> > > >
> > > > Bill

DougW

SB did pass the time by typing:
> You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
> and tie them in series.
> Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
> 5 volts from where these two join.
>
> I don't know how picky these gauges are about their 5volts!! But note that
> +12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
> it out!

Much better solution.

7805 Voltage Regulator (Radio Shack 276-1770)

Takes any voltage from 6 to 35V and gives you
a rock steady 5V at up to 1A.

You only need three wires, voltage in, ground and
voltage out.

--
DougW

DougW

SB did pass the time by typing:
> You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
> and tie them in series.
> Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
> 5 volts from where these two join.
>
> I don't know how picky these gauges are about their 5volts!! But note that
> +12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
> it out!

Much better solution.

7805 Voltage Regulator (Radio Shack 276-1770)

Takes any voltage from 6 to 35V and gives you
a rock steady 5V at up to 1A.

You only need three wires, voltage in, ground and
voltage out.

--
DougW

DougW

SB did pass the time by typing:
> You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
> and tie them in series.
> Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
> 5 volts from where these two join.
>
> I don't know how picky these gauges are about their 5volts!! But note that
> +12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
> it out!

Much better solution.

7805 Voltage Regulator (Radio Shack 276-1770)

Takes any voltage from 6 to 35V and gives you
a rock steady 5V at up to 1A.

You only need three wires, voltage in, ground and
voltage out.

--
DougW

DougW

SB did pass the time by typing:
> You could also take a 4.1kohm and a 5.8kohm resistor (or a 41k and a 58k)
> and tie them in series.
> Tie the 58k end to +12 and the other end of the 41k to ground. Grab approx
> 5 volts from where these two join.
>
> I don't know how picky these gauges are about their 5volts!! But note that
> +12v isn't exactly clean.....so maybe a capacitor in parallel might smooth
> it out!

Much better solution.

7805 Voltage Regulator (Radio Shack 276-1770)

Takes any voltage from 6 to 35V and gives you
a rock steady 5V at up to 1A.

You only need three wires, voltage in, ground and
voltage out.

--
DougW

Mike Romain

CJ gauges use 5 volts, not 12.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

CRWLR wrote:
>
> Well, the fuel guage and the temp guage both use the same 12v source. They
> are grounded through the respective sensors. So, if you took the 12v away to
> feed the fuel guage, you need to make a jumper of some sort to get that 12v
> back to the temp guage.
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:2gvtlpF7d65kU1@uni-berlin.de...
> > I just installed new fuel and oil pressure gauges from Autometer. Now my
> > temperature gauge doesn't work.
> >
> > Can the temp gauge be run without connecting to the fuel gauge (there's a
> > crossover there which combines the two) and if so how is it configured?
> >
> > Thanks,
> >
> > Bill
> >
> >
> >