trying to get the temp gauge working
11-14-2003, 12:13 AM
#11
Guest
Posts: n/a
Re: trying to get the temp gauge working
That gauge relies on the mechanical voltage regulator inside the gas
gauge. The power comes from the metal strap between the gauges.
If the voltage regulator circuit is bad like mine, the temp gauge won't
work or only show really low. I think one of the bolts for the power
has a bad connection on the circuit board inside the fuel gauge on mine.
If you ground the wire on the engine head the gauge should move.
Fiberglass.... Hmmmm.....
Is your engine grounded to the dash??? The dash needs a dedicated
ground wire and the engine is supposed to be grounded to this and the
headlights.
I have one main ground tap just beside my fuse panel on the engine
firewall. The battery, engine, front and back harness for lights, dash,
ignition module, etc. all ground there.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Jet wrote:
>
> I ran all the tests on jeepteck for the temp gauge and they all checked out
> o.k. but still the gauge don't work. I guess I should mention that I have a
> fiberglass body if that makes a difference. thanks carmine
>
> "JimG" <jimg@cj7.com> wrote in message
> news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > http://www.jeeptech.com/electrical/gauges/
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> > "Jet" <jet@bestweb.net> wrote in message
> > news:vr855ncjdmsqc4@corp.supernews.com...
> > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it is
> > the
> > > temp gauge that is in the speedometer cluster on the bottom left side.
> > > I grounded out the post on the back of the temp gauge and it went all
> the
> > > way up to hot on the temp gauge. so I ran a new wire for the post on the
> > > back of the temp gauge to what I think is the temperature sending unit (
> > the
> > > small post that is threaded into the rear of the cylinder head on the
> > > drivers side).
> > > and still the gauge did not work . I know the sending unit was replaced
> 2
> > > years ago. is that post the sending unit or is the sending unit the post
> > > that in threaded into the intake manifold? is there any way to check
> these
> > > sending units?
> > >
> > > thanks carmine
> > >
> > >
> >
> >
gauge. The power comes from the metal strap between the gauges.
If the voltage regulator circuit is bad like mine, the temp gauge won't
work or only show really low. I think one of the bolts for the power
has a bad connection on the circuit board inside the fuel gauge on mine.
If you ground the wire on the engine head the gauge should move.
Fiberglass.... Hmmmm.....
Is your engine grounded to the dash??? The dash needs a dedicated
ground wire and the engine is supposed to be grounded to this and the
headlights.
I have one main ground tap just beside my fuse panel on the engine
firewall. The battery, engine, front and back harness for lights, dash,
ignition module, etc. all ground there.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Jet wrote:
>
> I ran all the tests on jeepteck for the temp gauge and they all checked out
> o.k. but still the gauge don't work. I guess I should mention that I have a
> fiberglass body if that makes a difference. thanks carmine
>
> "JimG" <jimg@cj7.com> wrote in message
> news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > http://www.jeeptech.com/electrical/gauges/
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> > "Jet" <jet@bestweb.net> wrote in message
> > news:vr855ncjdmsqc4@corp.supernews.com...
> > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it is
> > the
> > > temp gauge that is in the speedometer cluster on the bottom left side.
> > > I grounded out the post on the back of the temp gauge and it went all
> the
> > > way up to hot on the temp gauge. so I ran a new wire for the post on the
> > > back of the temp gauge to what I think is the temperature sending unit (
> > the
> > > small post that is threaded into the rear of the cylinder head on the
> > > drivers side).
> > > and still the gauge did not work . I know the sending unit was replaced
> 2
> > > years ago. is that post the sending unit or is the sending unit the post
> > > that in threaded into the intake manifold? is there any way to check
> these
> > > sending units?
> > >
> > > thanks carmine
> > >
> > >
> >
> >
11-14-2003, 12:13 AM
#12
Guest
Posts: n/a
Re: trying to get the temp gauge working
That gauge relies on the mechanical voltage regulator inside the gas
gauge. The power comes from the metal strap between the gauges.
If the voltage regulator circuit is bad like mine, the temp gauge won't
work or only show really low. I think one of the bolts for the power
has a bad connection on the circuit board inside the fuel gauge on mine.
If you ground the wire on the engine head the gauge should move.
Fiberglass.... Hmmmm.....
Is your engine grounded to the dash??? The dash needs a dedicated
ground wire and the engine is supposed to be grounded to this and the
headlights.
I have one main ground tap just beside my fuse panel on the engine
firewall. The battery, engine, front and back harness for lights, dash,
ignition module, etc. all ground there.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Jet wrote:
>
> I ran all the tests on jeepteck for the temp gauge and they all checked out
> o.k. but still the gauge don't work. I guess I should mention that I have a
> fiberglass body if that makes a difference. thanks carmine
>
> "JimG" <jimg@cj7.com> wrote in message
> news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > http://www.jeeptech.com/electrical/gauges/
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> > "Jet" <jet@bestweb.net> wrote in message
> > news:vr855ncjdmsqc4@corp.supernews.com...
> > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it is
> > the
> > > temp gauge that is in the speedometer cluster on the bottom left side.
> > > I grounded out the post on the back of the temp gauge and it went all
> the
> > > way up to hot on the temp gauge. so I ran a new wire for the post on the
> > > back of the temp gauge to what I think is the temperature sending unit (
> > the
> > > small post that is threaded into the rear of the cylinder head on the
> > > drivers side).
> > > and still the gauge did not work . I know the sending unit was replaced
> 2
> > > years ago. is that post the sending unit or is the sending unit the post
> > > that in threaded into the intake manifold? is there any way to check
> these
> > > sending units?
> > >
> > > thanks carmine
> > >
> > >
> >
> >
gauge. The power comes from the metal strap between the gauges.
If the voltage regulator circuit is bad like mine, the temp gauge won't
work or only show really low. I think one of the bolts for the power
has a bad connection on the circuit board inside the fuel gauge on mine.
If you ground the wire on the engine head the gauge should move.
Fiberglass.... Hmmmm.....
Is your engine grounded to the dash??? The dash needs a dedicated
ground wire and the engine is supposed to be grounded to this and the
headlights.
I have one main ground tap just beside my fuse panel on the engine
firewall. The battery, engine, front and back harness for lights, dash,
ignition module, etc. all ground there.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Jet wrote:
>
> I ran all the tests on jeepteck for the temp gauge and they all checked out
> o.k. but still the gauge don't work. I guess I should mention that I have a
> fiberglass body if that makes a difference. thanks carmine
>
> "JimG" <jimg@cj7.com> wrote in message
> news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > http://www.jeeptech.com/electrical/gauges/
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> > "Jet" <jet@bestweb.net> wrote in message
> > news:vr855ncjdmsqc4@corp.supernews.com...
> > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it is
> > the
> > > temp gauge that is in the speedometer cluster on the bottom left side.
> > > I grounded out the post on the back of the temp gauge and it went all
> the
> > > way up to hot on the temp gauge. so I ran a new wire for the post on the
> > > back of the temp gauge to what I think is the temperature sending unit (
> > the
> > > small post that is threaded into the rear of the cylinder head on the
> > > drivers side).
> > > and still the gauge did not work . I know the sending unit was replaced
> 2
> > > years ago. is that post the sending unit or is the sending unit the post
> > > that in threaded into the intake manifold? is there any way to check
> these
> > > sending units?
> > >
> > > thanks carmine
> > >
> > >
> >
> >
11-14-2003, 12:13 AM
#13
Guest
Posts: n/a
Re: trying to get the temp gauge working
That gauge relies on the mechanical voltage regulator inside the gas
gauge. The power comes from the metal strap between the gauges.
If the voltage regulator circuit is bad like mine, the temp gauge won't
work or only show really low. I think one of the bolts for the power
has a bad connection on the circuit board inside the fuel gauge on mine.
If you ground the wire on the engine head the gauge should move.
Fiberglass.... Hmmmm.....
Is your engine grounded to the dash??? The dash needs a dedicated
ground wire and the engine is supposed to be grounded to this and the
headlights.
I have one main ground tap just beside my fuse panel on the engine
firewall. The battery, engine, front and back harness for lights, dash,
ignition module, etc. all ground there.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Jet wrote:
>
> I ran all the tests on jeepteck for the temp gauge and they all checked out
> o.k. but still the gauge don't work. I guess I should mention that I have a
> fiberglass body if that makes a difference. thanks carmine
>
> "JimG" <jimg@cj7.com> wrote in message
> news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > http://www.jeeptech.com/electrical/gauges/
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> > "Jet" <jet@bestweb.net> wrote in message
> > news:vr855ncjdmsqc4@corp.supernews.com...
> > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it is
> > the
> > > temp gauge that is in the speedometer cluster on the bottom left side.
> > > I grounded out the post on the back of the temp gauge and it went all
> the
> > > way up to hot on the temp gauge. so I ran a new wire for the post on the
> > > back of the temp gauge to what I think is the temperature sending unit (
> > the
> > > small post that is threaded into the rear of the cylinder head on the
> > > drivers side).
> > > and still the gauge did not work . I know the sending unit was replaced
> 2
> > > years ago. is that post the sending unit or is the sending unit the post
> > > that in threaded into the intake manifold? is there any way to check
> these
> > > sending units?
> > >
> > > thanks carmine
> > >
> > >
> >
> >
gauge. The power comes from the metal strap between the gauges.
If the voltage regulator circuit is bad like mine, the temp gauge won't
work or only show really low. I think one of the bolts for the power
has a bad connection on the circuit board inside the fuel gauge on mine.
If you ground the wire on the engine head the gauge should move.
Fiberglass.... Hmmmm.....
Is your engine grounded to the dash??? The dash needs a dedicated
ground wire and the engine is supposed to be grounded to this and the
headlights.
I have one main ground tap just beside my fuse panel on the engine
firewall. The battery, engine, front and back harness for lights, dash,
ignition module, etc. all ground there.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Jet wrote:
>
> I ran all the tests on jeepteck for the temp gauge and they all checked out
> o.k. but still the gauge don't work. I guess I should mention that I have a
> fiberglass body if that makes a difference. thanks carmine
>
> "JimG" <jimg@cj7.com> wrote in message
> news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > http://www.jeeptech.com/electrical/gauges/
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> > "Jet" <jet@bestweb.net> wrote in message
> > news:vr855ncjdmsqc4@corp.supernews.com...
> > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it is
> > the
> > > temp gauge that is in the speedometer cluster on the bottom left side.
> > > I grounded out the post on the back of the temp gauge and it went all
> the
> > > way up to hot on the temp gauge. so I ran a new wire for the post on the
> > > back of the temp gauge to what I think is the temperature sending unit (
> > the
> > > small post that is threaded into the rear of the cylinder head on the
> > > drivers side).
> > > and still the gauge did not work . I know the sending unit was replaced
> 2
> > > years ago. is that post the sending unit or is the sending unit the post
> > > that in threaded into the intake manifold? is there any way to check
> these
> > > sending units?
> > >
> > > thanks carmine
> > >
> > >
> >
> >
11-14-2003, 07:58 AM
#14
Guest
Posts: n/a
Re: trying to get the temp gauge working
> Jet wrote:
> I grounded out the post on the back of the temp gauge and it went all the
>way up to hot on the temp gauge. so I ran a new wire for the post on the
>back of the temp gauge to what I think is the temperature sending unit (
the
>small post that is threaded into the rear of the cylinder head on the
>drivers side).
His first test indicates that the regulator is (or was ) OK. It probably
would be a good idea to ground the sender wire at the block to prove the
wiring though.
Mike,
Personally I would use a ten ohm resistor and connect to the block - could
grounding it straight burn up the regulator?
JimG
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FB46469.DFFF83B7@sympatico.ca...
> That gauge relies on the mechanical voltage regulator inside the gas
> gauge. The power comes from the metal strap between the gauges.
>
> If the voltage regulator circuit is bad like mine, the temp gauge won't
> work or only show really low. I think one of the bolts for the power
> has a bad connection on the circuit board inside the fuel gauge on mine.
>
> If you ground the wire on the engine head the gauge should move.
>
> Fiberglass.... Hmmmm.....
>
> Is your engine grounded to the dash??? The dash needs a dedicated
> ground wire and the engine is supposed to be grounded to this and the
> headlights.
>
> I have one main ground tap just beside my fuse panel on the engine
> firewall. The battery, engine, front and back harness for lights, dash,
> ignition module, etc. all ground there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jet wrote:
> >
> > I ran all the tests on jeepteck for the temp gauge and they all checked
out
> > o.k. but still the gauge don't work. I guess I should mention that I
have a
> > fiberglass body if that makes a difference. thanks carmine
> >
> > "JimG" <jimg@cj7.com> wrote in message
> > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > http://www.jeeptech.com/electrical/gauges/
> > >
> > > --
> > > JimG
> > > 80' CJ-7 258 CID
> > > 35" BFG MT on 15x10 Centerlines
> > > D44 Rear, Dana 30 Front. SOA
> > > 4.56 Gears, LockRight F&R
> > > Dana 300 w/4:1 & Currie twin sticks
> > > Warn X8000i w/ dual batteries
> > >
> > >
> > > "Jet" <jet@bestweb.net> wrote in message
> > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
is
> > > the
> > > > temp gauge that is in the speedometer cluster on the bottom left
side.
> > > > I grounded out the post on the back of the temp gauge and it went
all
> > the
> > > > way up to hot on the temp gauge. so I ran a new wire for the post on
the
> > > > back of the temp gauge to what I think is the temperature sending
unit (
> > > the
> > > > small post that is threaded into the rear of the cylinder head on
the
> > > > drivers side).
> > > > and still the gauge did not work . I know the sending unit was
replaced
> > 2
> > > > years ago. is that post the sending unit or is the sending unit the
post
> > > > that in threaded into the intake manifold? is there any way to check
> > these
> > > > sending units?
> > > >
> > > > thanks carmine
> > > >
> > > >
> > >
> > >
> I grounded out the post on the back of the temp gauge and it went all the
>way up to hot on the temp gauge. so I ran a new wire for the post on the
>back of the temp gauge to what I think is the temperature sending unit (
the
>small post that is threaded into the rear of the cylinder head on the
>drivers side).
His first test indicates that the regulator is (or was ) OK. It probably
would be a good idea to ground the sender wire at the block to prove the
wiring though.
Mike,
Personally I would use a ten ohm resistor and connect to the block - could
grounding it straight burn up the regulator?
JimG
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FB46469.DFFF83B7@sympatico.ca...
> That gauge relies on the mechanical voltage regulator inside the gas
> gauge. The power comes from the metal strap between the gauges.
>
> If the voltage regulator circuit is bad like mine, the temp gauge won't
> work or only show really low. I think one of the bolts for the power
> has a bad connection on the circuit board inside the fuel gauge on mine.
>
> If you ground the wire on the engine head the gauge should move.
>
> Fiberglass.... Hmmmm.....
>
> Is your engine grounded to the dash??? The dash needs a dedicated
> ground wire and the engine is supposed to be grounded to this and the
> headlights.
>
> I have one main ground tap just beside my fuse panel on the engine
> firewall. The battery, engine, front and back harness for lights, dash,
> ignition module, etc. all ground there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jet wrote:
> >
> > I ran all the tests on jeepteck for the temp gauge and they all checked
out
> > o.k. but still the gauge don't work. I guess I should mention that I
have a
> > fiberglass body if that makes a difference. thanks carmine
> >
> > "JimG" <jimg@cj7.com> wrote in message
> > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > http://www.jeeptech.com/electrical/gauges/
> > >
> > > --
> > > JimG
> > > 80' CJ-7 258 CID
> > > 35" BFG MT on 15x10 Centerlines
> > > D44 Rear, Dana 30 Front. SOA
> > > 4.56 Gears, LockRight F&R
> > > Dana 300 w/4:1 & Currie twin sticks
> > > Warn X8000i w/ dual batteries
> > >
> > >
> > > "Jet" <jet@bestweb.net> wrote in message
> > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
is
> > > the
> > > > temp gauge that is in the speedometer cluster on the bottom left
side.
> > > > I grounded out the post on the back of the temp gauge and it went
all
> > the
> > > > way up to hot on the temp gauge. so I ran a new wire for the post on
the
> > > > back of the temp gauge to what I think is the temperature sending
unit (
> > > the
> > > > small post that is threaded into the rear of the cylinder head on
the
> > > > drivers side).
> > > > and still the gauge did not work . I know the sending unit was
replaced
> > 2
> > > > years ago. is that post the sending unit or is the sending unit the
post
> > > > that in threaded into the intake manifold? is there any way to check
> > these
> > > > sending units?
> > > >
> > > > thanks carmine
> > > >
> > > >
> > >
> > >
11-14-2003, 07:58 AM
#15
Guest
Posts: n/a
Re: trying to get the temp gauge working
> Jet wrote:
> I grounded out the post on the back of the temp gauge and it went all the
>way up to hot on the temp gauge. so I ran a new wire for the post on the
>back of the temp gauge to what I think is the temperature sending unit (
the
>small post that is threaded into the rear of the cylinder head on the
>drivers side).
His first test indicates that the regulator is (or was ) OK. It probably
would be a good idea to ground the sender wire at the block to prove the
wiring though.
Mike,
Personally I would use a ten ohm resistor and connect to the block - could
grounding it straight burn up the regulator?
JimG
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FB46469.DFFF83B7@sympatico.ca...
> That gauge relies on the mechanical voltage regulator inside the gas
> gauge. The power comes from the metal strap between the gauges.
>
> If the voltage regulator circuit is bad like mine, the temp gauge won't
> work or only show really low. I think one of the bolts for the power
> has a bad connection on the circuit board inside the fuel gauge on mine.
>
> If you ground the wire on the engine head the gauge should move.
>
> Fiberglass.... Hmmmm.....
>
> Is your engine grounded to the dash??? The dash needs a dedicated
> ground wire and the engine is supposed to be grounded to this and the
> headlights.
>
> I have one main ground tap just beside my fuse panel on the engine
> firewall. The battery, engine, front and back harness for lights, dash,
> ignition module, etc. all ground there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jet wrote:
> >
> > I ran all the tests on jeepteck for the temp gauge and they all checked
out
> > o.k. but still the gauge don't work. I guess I should mention that I
have a
> > fiberglass body if that makes a difference. thanks carmine
> >
> > "JimG" <jimg@cj7.com> wrote in message
> > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > http://www.jeeptech.com/electrical/gauges/
> > >
> > > --
> > > JimG
> > > 80' CJ-7 258 CID
> > > 35" BFG MT on 15x10 Centerlines
> > > D44 Rear, Dana 30 Front. SOA
> > > 4.56 Gears, LockRight F&R
> > > Dana 300 w/4:1 & Currie twin sticks
> > > Warn X8000i w/ dual batteries
> > >
> > >
> > > "Jet" <jet@bestweb.net> wrote in message
> > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
is
> > > the
> > > > temp gauge that is in the speedometer cluster on the bottom left
side.
> > > > I grounded out the post on the back of the temp gauge and it went
all
> > the
> > > > way up to hot on the temp gauge. so I ran a new wire for the post on
the
> > > > back of the temp gauge to what I think is the temperature sending
unit (
> > > the
> > > > small post that is threaded into the rear of the cylinder head on
the
> > > > drivers side).
> > > > and still the gauge did not work . I know the sending unit was
replaced
> > 2
> > > > years ago. is that post the sending unit or is the sending unit the
post
> > > > that in threaded into the intake manifold? is there any way to check
> > these
> > > > sending units?
> > > >
> > > > thanks carmine
> > > >
> > > >
> > >
> > >
> I grounded out the post on the back of the temp gauge and it went all the
>way up to hot on the temp gauge. so I ran a new wire for the post on the
>back of the temp gauge to what I think is the temperature sending unit (
the
>small post that is threaded into the rear of the cylinder head on the
>drivers side).
His first test indicates that the regulator is (or was ) OK. It probably
would be a good idea to ground the sender wire at the block to prove the
wiring though.
Mike,
Personally I would use a ten ohm resistor and connect to the block - could
grounding it straight burn up the regulator?
JimG
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FB46469.DFFF83B7@sympatico.ca...
> That gauge relies on the mechanical voltage regulator inside the gas
> gauge. The power comes from the metal strap between the gauges.
>
> If the voltage regulator circuit is bad like mine, the temp gauge won't
> work or only show really low. I think one of the bolts for the power
> has a bad connection on the circuit board inside the fuel gauge on mine.
>
> If you ground the wire on the engine head the gauge should move.
>
> Fiberglass.... Hmmmm.....
>
> Is your engine grounded to the dash??? The dash needs a dedicated
> ground wire and the engine is supposed to be grounded to this and the
> headlights.
>
> I have one main ground tap just beside my fuse panel on the engine
> firewall. The battery, engine, front and back harness for lights, dash,
> ignition module, etc. all ground there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jet wrote:
> >
> > I ran all the tests on jeepteck for the temp gauge and they all checked
out
> > o.k. but still the gauge don't work. I guess I should mention that I
have a
> > fiberglass body if that makes a difference. thanks carmine
> >
> > "JimG" <jimg@cj7.com> wrote in message
> > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > http://www.jeeptech.com/electrical/gauges/
> > >
> > > --
> > > JimG
> > > 80' CJ-7 258 CID
> > > 35" BFG MT on 15x10 Centerlines
> > > D44 Rear, Dana 30 Front. SOA
> > > 4.56 Gears, LockRight F&R
> > > Dana 300 w/4:1 & Currie twin sticks
> > > Warn X8000i w/ dual batteries
> > >
> > >
> > > "Jet" <jet@bestweb.net> wrote in message
> > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
is
> > > the
> > > > temp gauge that is in the speedometer cluster on the bottom left
side.
> > > > I grounded out the post on the back of the temp gauge and it went
all
> > the
> > > > way up to hot on the temp gauge. so I ran a new wire for the post on
the
> > > > back of the temp gauge to what I think is the temperature sending
unit (
> > > the
> > > > small post that is threaded into the rear of the cylinder head on
the
> > > > drivers side).
> > > > and still the gauge did not work . I know the sending unit was
replaced
> > 2
> > > > years ago. is that post the sending unit or is the sending unit the
post
> > > > that in threaded into the intake manifold? is there any way to check
> > these
> > > > sending units?
> > > >
> > > > thanks carmine
> > > >
> > > >
> > >
> > >
11-14-2003, 07:58 AM
#16
Guest
Posts: n/a
Re: trying to get the temp gauge working
> Jet wrote:
> I grounded out the post on the back of the temp gauge and it went all the
>way up to hot on the temp gauge. so I ran a new wire for the post on the
>back of the temp gauge to what I think is the temperature sending unit (
the
>small post that is threaded into the rear of the cylinder head on the
>drivers side).
His first test indicates that the regulator is (or was ) OK. It probably
would be a good idea to ground the sender wire at the block to prove the
wiring though.
Mike,
Personally I would use a ten ohm resistor and connect to the block - could
grounding it straight burn up the regulator?
JimG
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FB46469.DFFF83B7@sympatico.ca...
> That gauge relies on the mechanical voltage regulator inside the gas
> gauge. The power comes from the metal strap between the gauges.
>
> If the voltage regulator circuit is bad like mine, the temp gauge won't
> work or only show really low. I think one of the bolts for the power
> has a bad connection on the circuit board inside the fuel gauge on mine.
>
> If you ground the wire on the engine head the gauge should move.
>
> Fiberglass.... Hmmmm.....
>
> Is your engine grounded to the dash??? The dash needs a dedicated
> ground wire and the engine is supposed to be grounded to this and the
> headlights.
>
> I have one main ground tap just beside my fuse panel on the engine
> firewall. The battery, engine, front and back harness for lights, dash,
> ignition module, etc. all ground there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jet wrote:
> >
> > I ran all the tests on jeepteck for the temp gauge and they all checked
out
> > o.k. but still the gauge don't work. I guess I should mention that I
have a
> > fiberglass body if that makes a difference. thanks carmine
> >
> > "JimG" <jimg@cj7.com> wrote in message
> > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > http://www.jeeptech.com/electrical/gauges/
> > >
> > > --
> > > JimG
> > > 80' CJ-7 258 CID
> > > 35" BFG MT on 15x10 Centerlines
> > > D44 Rear, Dana 30 Front. SOA
> > > 4.56 Gears, LockRight F&R
> > > Dana 300 w/4:1 & Currie twin sticks
> > > Warn X8000i w/ dual batteries
> > >
> > >
> > > "Jet" <jet@bestweb.net> wrote in message
> > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
is
> > > the
> > > > temp gauge that is in the speedometer cluster on the bottom left
side.
> > > > I grounded out the post on the back of the temp gauge and it went
all
> > the
> > > > way up to hot on the temp gauge. so I ran a new wire for the post on
the
> > > > back of the temp gauge to what I think is the temperature sending
unit (
> > > the
> > > > small post that is threaded into the rear of the cylinder head on
the
> > > > drivers side).
> > > > and still the gauge did not work . I know the sending unit was
replaced
> > 2
> > > > years ago. is that post the sending unit or is the sending unit the
post
> > > > that in threaded into the intake manifold? is there any way to check
> > these
> > > > sending units?
> > > >
> > > > thanks carmine
> > > >
> > > >
> > >
> > >
> I grounded out the post on the back of the temp gauge and it went all the
>way up to hot on the temp gauge. so I ran a new wire for the post on the
>back of the temp gauge to what I think is the temperature sending unit (
the
>small post that is threaded into the rear of the cylinder head on the
>drivers side).
His first test indicates that the regulator is (or was ) OK. It probably
would be a good idea to ground the sender wire at the block to prove the
wiring though.
Mike,
Personally I would use a ten ohm resistor and connect to the block - could
grounding it straight burn up the regulator?
JimG
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FB46469.DFFF83B7@sympatico.ca...
> That gauge relies on the mechanical voltage regulator inside the gas
> gauge. The power comes from the metal strap between the gauges.
>
> If the voltage regulator circuit is bad like mine, the temp gauge won't
> work or only show really low. I think one of the bolts for the power
> has a bad connection on the circuit board inside the fuel gauge on mine.
>
> If you ground the wire on the engine head the gauge should move.
>
> Fiberglass.... Hmmmm.....
>
> Is your engine grounded to the dash??? The dash needs a dedicated
> ground wire and the engine is supposed to be grounded to this and the
> headlights.
>
> I have one main ground tap just beside my fuse panel on the engine
> firewall. The battery, engine, front and back harness for lights, dash,
> ignition module, etc. all ground there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Jet wrote:
> >
> > I ran all the tests on jeepteck for the temp gauge and they all checked
out
> > o.k. but still the gauge don't work. I guess I should mention that I
have a
> > fiberglass body if that makes a difference. thanks carmine
> >
> > "JimG" <jimg@cj7.com> wrote in message
> > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > http://www.jeeptech.com/electrical/gauges/
> > >
> > > --
> > > JimG
> > > 80' CJ-7 258 CID
> > > 35" BFG MT on 15x10 Centerlines
> > > D44 Rear, Dana 30 Front. SOA
> > > 4.56 Gears, LockRight F&R
> > > Dana 300 w/4:1 & Currie twin sticks
> > > Warn X8000i w/ dual batteries
> > >
> > >
> > > "Jet" <jet@bestweb.net> wrote in message
> > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
is
> > > the
> > > > temp gauge that is in the speedometer cluster on the bottom left
side.
> > > > I grounded out the post on the back of the temp gauge and it went
all
> > the
> > > > way up to hot on the temp gauge. so I ran a new wire for the post on
the
> > > > back of the temp gauge to what I think is the temperature sending
unit (
> > > the
> > > > small post that is threaded into the rear of the cylinder head on
the
> > > > drivers side).
> > > > and still the gauge did not work . I know the sending unit was
replaced
> > 2
> > > > years ago. is that post the sending unit or is the sending unit the
post
> > > > that in threaded into the intake manifold? is there any way to check
> > these
> > > > sending units?
> > > >
> > > > thanks carmine
> > > >
> > > >
> > >
> > >
11-14-2003, 10:44 AM
#17
Guest
Posts: n/a
Re: trying to get the temp gauge working
Grounding straight is ok. Putting 12 volts to the power will fry it
though.
Mike
JimG wrote:
>
> > Jet wrote:
> > I grounded out the post on the back of the temp gauge and it went all the
> >way up to hot on the temp gauge. so I ran a new wire for the post on the
> >back of the temp gauge to what I think is the temperature sending unit (
> the
> >small post that is threaded into the rear of the cylinder head on the
> >drivers side).
>
> His first test indicates that the regulator is (or was ) OK. It probably
> would be a good idea to ground the sender wire at the block to prove the
> wiring though.
>
> Mike,
> Personally I would use a ten ohm resistor and connect to the block - could
> grounding it straight burn up the regulator?
>
> JimG
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:3FB46469.DFFF83B7@sympatico.ca...
> > That gauge relies on the mechanical voltage regulator inside the gas
> > gauge. The power comes from the metal strap between the gauges.
> >
> > If the voltage regulator circuit is bad like mine, the temp gauge won't
> > work or only show really low. I think one of the bolts for the power
> > has a bad connection on the circuit board inside the fuel gauge on mine.
> >
> > If you ground the wire on the engine head the gauge should move.
> >
> > Fiberglass.... Hmmmm.....
> >
> > Is your engine grounded to the dash??? The dash needs a dedicated
> > ground wire and the engine is supposed to be grounded to this and the
> > headlights.
> >
> > I have one main ground tap just beside my fuse panel on the engine
> > firewall. The battery, engine, front and back harness for lights, dash,
> > ignition module, etc. all ground there.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jet wrote:
> > >
> > > I ran all the tests on jeepteck for the temp gauge and they all checked
> out
> > > o.k. but still the gauge don't work. I guess I should mention that I
> have a
> > > fiberglass body if that makes a difference. thanks carmine
> > >
> > > "JimG" <jimg@cj7.com> wrote in message
> > > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > > http://www.jeeptech.com/electrical/gauges/
> > > >
> > > > --
> > > > JimG
> > > > 80' CJ-7 258 CID
> > > > 35" BFG MT on 15x10 Centerlines
> > > > D44 Rear, Dana 30 Front. SOA
> > > > 4.56 Gears, LockRight F&R
> > > > Dana 300 w/4:1 & Currie twin sticks
> > > > Warn X8000i w/ dual batteries
> > > >
> > > >
> > > > "Jet" <jet@bestweb.net> wrote in message
> > > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
> is
> > > > the
> > > > > temp gauge that is in the speedometer cluster on the bottom left
> side.
> > > > > I grounded out the post on the back of the temp gauge and it went
> all
> > > the
> > > > > way up to hot on the temp gauge. so I ran a new wire for the post on
> the
> > > > > back of the temp gauge to what I think is the temperature sending
> unit (
> > > > the
> > > > > small post that is threaded into the rear of the cylinder head on
> the
> > > > > drivers side).
> > > > > and still the gauge did not work . I know the sending unit was
> replaced
> > > 2
> > > > > years ago. is that post the sending unit or is the sending unit the
> post
> > > > > that in threaded into the intake manifold? is there any way to check
> > > these
> > > > > sending units?
> > > > >
> > > > > thanks carmine
> > > > >
> > > > >
> > > >
> > > >
though.
Mike
JimG wrote:
>
> > Jet wrote:
> > I grounded out the post on the back of the temp gauge and it went all the
> >way up to hot on the temp gauge. so I ran a new wire for the post on the
> >back of the temp gauge to what I think is the temperature sending unit (
> the
> >small post that is threaded into the rear of the cylinder head on the
> >drivers side).
>
> His first test indicates that the regulator is (or was ) OK. It probably
> would be a good idea to ground the sender wire at the block to prove the
> wiring though.
>
> Mike,
> Personally I would use a ten ohm resistor and connect to the block - could
> grounding it straight burn up the regulator?
>
> JimG
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:3FB46469.DFFF83B7@sympatico.ca...
> > That gauge relies on the mechanical voltage regulator inside the gas
> > gauge. The power comes from the metal strap between the gauges.
> >
> > If the voltage regulator circuit is bad like mine, the temp gauge won't
> > work or only show really low. I think one of the bolts for the power
> > has a bad connection on the circuit board inside the fuel gauge on mine.
> >
> > If you ground the wire on the engine head the gauge should move.
> >
> > Fiberglass.... Hmmmm.....
> >
> > Is your engine grounded to the dash??? The dash needs a dedicated
> > ground wire and the engine is supposed to be grounded to this and the
> > headlights.
> >
> > I have one main ground tap just beside my fuse panel on the engine
> > firewall. The battery, engine, front and back harness for lights, dash,
> > ignition module, etc. all ground there.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jet wrote:
> > >
> > > I ran all the tests on jeepteck for the temp gauge and they all checked
> out
> > > o.k. but still the gauge don't work. I guess I should mention that I
> have a
> > > fiberglass body if that makes a difference. thanks carmine
> > >
> > > "JimG" <jimg@cj7.com> wrote in message
> > > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > > http://www.jeeptech.com/electrical/gauges/
> > > >
> > > > --
> > > > JimG
> > > > 80' CJ-7 258 CID
> > > > 35" BFG MT on 15x10 Centerlines
> > > > D44 Rear, Dana 30 Front. SOA
> > > > 4.56 Gears, LockRight F&R
> > > > Dana 300 w/4:1 & Currie twin sticks
> > > > Warn X8000i w/ dual batteries
> > > >
> > > >
> > > > "Jet" <jet@bestweb.net> wrote in message
> > > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
> is
> > > > the
> > > > > temp gauge that is in the speedometer cluster on the bottom left
> side.
> > > > > I grounded out the post on the back of the temp gauge and it went
> all
> > > the
> > > > > way up to hot on the temp gauge. so I ran a new wire for the post on
> the
> > > > > back of the temp gauge to what I think is the temperature sending
> unit (
> > > > the
> > > > > small post that is threaded into the rear of the cylinder head on
> the
> > > > > drivers side).
> > > > > and still the gauge did not work . I know the sending unit was
> replaced
> > > 2
> > > > > years ago. is that post the sending unit or is the sending unit the
> post
> > > > > that in threaded into the intake manifold? is there any way to check
> > > these
> > > > > sending units?
> > > > >
> > > > > thanks carmine
> > > > >
> > > > >
> > > >
> > > >
11-14-2003, 10:44 AM
#18
Guest
Posts: n/a
Re: trying to get the temp gauge working
Grounding straight is ok. Putting 12 volts to the power will fry it
though.
Mike
JimG wrote:
>
> > Jet wrote:
> > I grounded out the post on the back of the temp gauge and it went all the
> >way up to hot on the temp gauge. so I ran a new wire for the post on the
> >back of the temp gauge to what I think is the temperature sending unit (
> the
> >small post that is threaded into the rear of the cylinder head on the
> >drivers side).
>
> His first test indicates that the regulator is (or was ) OK. It probably
> would be a good idea to ground the sender wire at the block to prove the
> wiring though.
>
> Mike,
> Personally I would use a ten ohm resistor and connect to the block - could
> grounding it straight burn up the regulator?
>
> JimG
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:3FB46469.DFFF83B7@sympatico.ca...
> > That gauge relies on the mechanical voltage regulator inside the gas
> > gauge. The power comes from the metal strap between the gauges.
> >
> > If the voltage regulator circuit is bad like mine, the temp gauge won't
> > work or only show really low. I think one of the bolts for the power
> > has a bad connection on the circuit board inside the fuel gauge on mine.
> >
> > If you ground the wire on the engine head the gauge should move.
> >
> > Fiberglass.... Hmmmm.....
> >
> > Is your engine grounded to the dash??? The dash needs a dedicated
> > ground wire and the engine is supposed to be grounded to this and the
> > headlights.
> >
> > I have one main ground tap just beside my fuse panel on the engine
> > firewall. The battery, engine, front and back harness for lights, dash,
> > ignition module, etc. all ground there.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jet wrote:
> > >
> > > I ran all the tests on jeepteck for the temp gauge and they all checked
> out
> > > o.k. but still the gauge don't work. I guess I should mention that I
> have a
> > > fiberglass body if that makes a difference. thanks carmine
> > >
> > > "JimG" <jimg@cj7.com> wrote in message
> > > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > > http://www.jeeptech.com/electrical/gauges/
> > > >
> > > > --
> > > > JimG
> > > > 80' CJ-7 258 CID
> > > > 35" BFG MT on 15x10 Centerlines
> > > > D44 Rear, Dana 30 Front. SOA
> > > > 4.56 Gears, LockRight F&R
> > > > Dana 300 w/4:1 & Currie twin sticks
> > > > Warn X8000i w/ dual batteries
> > > >
> > > >
> > > > "Jet" <jet@bestweb.net> wrote in message
> > > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
> is
> > > > the
> > > > > temp gauge that is in the speedometer cluster on the bottom left
> side.
> > > > > I grounded out the post on the back of the temp gauge and it went
> all
> > > the
> > > > > way up to hot on the temp gauge. so I ran a new wire for the post on
> the
> > > > > back of the temp gauge to what I think is the temperature sending
> unit (
> > > > the
> > > > > small post that is threaded into the rear of the cylinder head on
> the
> > > > > drivers side).
> > > > > and still the gauge did not work . I know the sending unit was
> replaced
> > > 2
> > > > > years ago. is that post the sending unit or is the sending unit the
> post
> > > > > that in threaded into the intake manifold? is there any way to check
> > > these
> > > > > sending units?
> > > > >
> > > > > thanks carmine
> > > > >
> > > > >
> > > >
> > > >
though.
Mike
JimG wrote:
>
> > Jet wrote:
> > I grounded out the post on the back of the temp gauge and it went all the
> >way up to hot on the temp gauge. so I ran a new wire for the post on the
> >back of the temp gauge to what I think is the temperature sending unit (
> the
> >small post that is threaded into the rear of the cylinder head on the
> >drivers side).
>
> His first test indicates that the regulator is (or was ) OK. It probably
> would be a good idea to ground the sender wire at the block to prove the
> wiring though.
>
> Mike,
> Personally I would use a ten ohm resistor and connect to the block - could
> grounding it straight burn up the regulator?
>
> JimG
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:3FB46469.DFFF83B7@sympatico.ca...
> > That gauge relies on the mechanical voltage regulator inside the gas
> > gauge. The power comes from the metal strap between the gauges.
> >
> > If the voltage regulator circuit is bad like mine, the temp gauge won't
> > work or only show really low. I think one of the bolts for the power
> > has a bad connection on the circuit board inside the fuel gauge on mine.
> >
> > If you ground the wire on the engine head the gauge should move.
> >
> > Fiberglass.... Hmmmm.....
> >
> > Is your engine grounded to the dash??? The dash needs a dedicated
> > ground wire and the engine is supposed to be grounded to this and the
> > headlights.
> >
> > I have one main ground tap just beside my fuse panel on the engine
> > firewall. The battery, engine, front and back harness for lights, dash,
> > ignition module, etc. all ground there.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jet wrote:
> > >
> > > I ran all the tests on jeepteck for the temp gauge and they all checked
> out
> > > o.k. but still the gauge don't work. I guess I should mention that I
> have a
> > > fiberglass body if that makes a difference. thanks carmine
> > >
> > > "JimG" <jimg@cj7.com> wrote in message
> > > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > > http://www.jeeptech.com/electrical/gauges/
> > > >
> > > > --
> > > > JimG
> > > > 80' CJ-7 258 CID
> > > > 35" BFG MT on 15x10 Centerlines
> > > > D44 Rear, Dana 30 Front. SOA
> > > > 4.56 Gears, LockRight F&R
> > > > Dana 300 w/4:1 & Currie twin sticks
> > > > Warn X8000i w/ dual batteries
> > > >
> > > >
> > > > "Jet" <jet@bestweb.net> wrote in message
> > > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
> is
> > > > the
> > > > > temp gauge that is in the speedometer cluster on the bottom left
> side.
> > > > > I grounded out the post on the back of the temp gauge and it went
> all
> > > the
> > > > > way up to hot on the temp gauge. so I ran a new wire for the post on
> the
> > > > > back of the temp gauge to what I think is the temperature sending
> unit (
> > > > the
> > > > > small post that is threaded into the rear of the cylinder head on
> the
> > > > > drivers side).
> > > > > and still the gauge did not work . I know the sending unit was
> replaced
> > > 2
> > > > > years ago. is that post the sending unit or is the sending unit the
> post
> > > > > that in threaded into the intake manifold? is there any way to check
> > > these
> > > > > sending units?
> > > > >
> > > > > thanks carmine
> > > > >
> > > > >
> > > >
> > > >
11-14-2003, 10:44 AM
#19
Guest
Posts: n/a
Re: trying to get the temp gauge working
Grounding straight is ok. Putting 12 volts to the power will fry it
though.
Mike
JimG wrote:
>
> > Jet wrote:
> > I grounded out the post on the back of the temp gauge and it went all the
> >way up to hot on the temp gauge. so I ran a new wire for the post on the
> >back of the temp gauge to what I think is the temperature sending unit (
> the
> >small post that is threaded into the rear of the cylinder head on the
> >drivers side).
>
> His first test indicates that the regulator is (or was ) OK. It probably
> would be a good idea to ground the sender wire at the block to prove the
> wiring though.
>
> Mike,
> Personally I would use a ten ohm resistor and connect to the block - could
> grounding it straight burn up the regulator?
>
> JimG
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:3FB46469.DFFF83B7@sympatico.ca...
> > That gauge relies on the mechanical voltage regulator inside the gas
> > gauge. The power comes from the metal strap between the gauges.
> >
> > If the voltage regulator circuit is bad like mine, the temp gauge won't
> > work or only show really low. I think one of the bolts for the power
> > has a bad connection on the circuit board inside the fuel gauge on mine.
> >
> > If you ground the wire on the engine head the gauge should move.
> >
> > Fiberglass.... Hmmmm.....
> >
> > Is your engine grounded to the dash??? The dash needs a dedicated
> > ground wire and the engine is supposed to be grounded to this and the
> > headlights.
> >
> > I have one main ground tap just beside my fuse panel on the engine
> > firewall. The battery, engine, front and back harness for lights, dash,
> > ignition module, etc. all ground there.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jet wrote:
> > >
> > > I ran all the tests on jeepteck for the temp gauge and they all checked
> out
> > > o.k. but still the gauge don't work. I guess I should mention that I
> have a
> > > fiberglass body if that makes a difference. thanks carmine
> > >
> > > "JimG" <jimg@cj7.com> wrote in message
> > > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > > http://www.jeeptech.com/electrical/gauges/
> > > >
> > > > --
> > > > JimG
> > > > 80' CJ-7 258 CID
> > > > 35" BFG MT on 15x10 Centerlines
> > > > D44 Rear, Dana 30 Front. SOA
> > > > 4.56 Gears, LockRight F&R
> > > > Dana 300 w/4:1 & Currie twin sticks
> > > > Warn X8000i w/ dual batteries
> > > >
> > > >
> > > > "Jet" <jet@bestweb.net> wrote in message
> > > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
> is
> > > > the
> > > > > temp gauge that is in the speedometer cluster on the bottom left
> side.
> > > > > I grounded out the post on the back of the temp gauge and it went
> all
> > > the
> > > > > way up to hot on the temp gauge. so I ran a new wire for the post on
> the
> > > > > back of the temp gauge to what I think is the temperature sending
> unit (
> > > > the
> > > > > small post that is threaded into the rear of the cylinder head on
> the
> > > > > drivers side).
> > > > > and still the gauge did not work . I know the sending unit was
> replaced
> > > 2
> > > > > years ago. is that post the sending unit or is the sending unit the
> post
> > > > > that in threaded into the intake manifold? is there any way to check
> > > these
> > > > > sending units?
> > > > >
> > > > > thanks carmine
> > > > >
> > > > >
> > > >
> > > >
though.
Mike
JimG wrote:
>
> > Jet wrote:
> > I grounded out the post on the back of the temp gauge and it went all the
> >way up to hot on the temp gauge. so I ran a new wire for the post on the
> >back of the temp gauge to what I think is the temperature sending unit (
> the
> >small post that is threaded into the rear of the cylinder head on the
> >drivers side).
>
> His first test indicates that the regulator is (or was ) OK. It probably
> would be a good idea to ground the sender wire at the block to prove the
> wiring though.
>
> Mike,
> Personally I would use a ten ohm resistor and connect to the block - could
> grounding it straight burn up the regulator?
>
> JimG
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:3FB46469.DFFF83B7@sympatico.ca...
> > That gauge relies on the mechanical voltage regulator inside the gas
> > gauge. The power comes from the metal strap between the gauges.
> >
> > If the voltage regulator circuit is bad like mine, the temp gauge won't
> > work or only show really low. I think one of the bolts for the power
> > has a bad connection on the circuit board inside the fuel gauge on mine.
> >
> > If you ground the wire on the engine head the gauge should move.
> >
> > Fiberglass.... Hmmmm.....
> >
> > Is your engine grounded to the dash??? The dash needs a dedicated
> > ground wire and the engine is supposed to be grounded to this and the
> > headlights.
> >
> > I have one main ground tap just beside my fuse panel on the engine
> > firewall. The battery, engine, front and back harness for lights, dash,
> > ignition module, etc. all ground there.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Jet wrote:
> > >
> > > I ran all the tests on jeepteck for the temp gauge and they all checked
> out
> > > o.k. but still the gauge don't work. I guess I should mention that I
> have a
> > > fiberglass body if that makes a difference. thanks carmine
> > >
> > > "JimG" <jimg@cj7.com> wrote in message
> > > news:p9Vsb.18148$aW1.5729@news02.roc.ny...
> > > > http://www.jeeptech.com/electrical/gauges/
> > > >
> > > > --
> > > > JimG
> > > > 80' CJ-7 258 CID
> > > > 35" BFG MT on 15x10 Centerlines
> > > > D44 Rear, Dana 30 Front. SOA
> > > > 4.56 Gears, LockRight F&R
> > > > Dana 300 w/4:1 & Currie twin sticks
> > > > Warn X8000i w/ dual batteries
> > > >
> > > >
> > > > "Jet" <jet@bestweb.net> wrote in message
> > > > news:vr855ncjdmsqc4@corp.supernews.com...
> > > > > I am trying to get the temp gauge working on my 86 258 6 cyl cj7. it
> is
> > > > the
> > > > > temp gauge that is in the speedometer cluster on the bottom left
> side.
> > > > > I grounded out the post on the back of the temp gauge and it went
> all
> > > the
> > > > > way up to hot on the temp gauge. so I ran a new wire for the post on
> the
> > > > > back of the temp gauge to what I think is the temperature sending
> unit (
> > > > the
> > > > > small post that is threaded into the rear of the cylinder head on
> the
> > > > > drivers side).
> > > > > and still the gauge did not work . I know the sending unit was
> replaced
> > > 2
> > > > > years ago. is that post the sending unit or is the sending unit the
> post
> > > > > that in threaded into the intake manifold? is there any way to check
> > > these
> > > > > sending units?
> > > > >
> > > > > thanks carmine
> > > > >
> > > > >
> > > >
> > > >
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