William Oliveri

Ok, I received my sending unit in the mail and I've heard from several
posters it should be calibrated before I put it in the tank. Question is
how? I couldn't find a reference in my FSM for ohm settings and even if I
did, how would I set the sending unit to read a specific value.

I have a meter.

Thanks for any help.

Bill

Paul Brogren

Hi Bill,

This is what I did. I hooked up the sending unit and the ground. and a
good ground source at that. I just moved the float thing. Mine did not
need adjustment. I left it. At empty it has approx. 2 gallons. At full
all is good. The two gallons are a safety measure. I'm sorry I must admit.
I don't know how to adjust it.

--
Thanks Always !!!
Paul '75 CJ5 258
Vail, CO.
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bn7eet$to13q$1@ID-193866.news.uni-berlin.de...
> Ok, I received my sending unit in the mail and I've heard from several
> posters it should be calibrated before I put it in the tank. Question is
> how? I couldn't find a reference in my FSM for ohm settings and even if I
> did, how would I set the sending unit to read a specific value.
>
> I have a meter.
>
> Thanks for any help.
>
> Bill
>
>

Paul Brogren

Hi Bill,

This is what I did. I hooked up the sending unit and the ground. and a
good ground source at that. I just moved the float thing. Mine did not
need adjustment. I left it. At empty it has approx. 2 gallons. At full
all is good. The two gallons are a safety measure. I'm sorry I must admit.
I don't know how to adjust it.

--
Thanks Always !!!
Paul '75 CJ5 258
Vail, CO.
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bn7eet$to13q$1@ID-193866.news.uni-berlin.de...
> Ok, I received my sending unit in the mail and I've heard from several
> posters it should be calibrated before I put it in the tank. Question is
> how? I couldn't find a reference in my FSM for ohm settings and even if I
> did, how would I set the sending unit to read a specific value.
>
> I have a meter.
>
> Thanks for any help.
>
> Bill
>
>

Paul Brogren

Hi Bill,

This is what I did. I hooked up the sending unit and the ground. and a
good ground source at that. I just moved the float thing. Mine did not
need adjustment. I left it. At empty it has approx. 2 gallons. At full
all is good. The two gallons are a safety measure. I'm sorry I must admit.
I don't know how to adjust it.

--
Thanks Always !!!
Paul '75 CJ5 258
Vail, CO.
"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bn7eet$to13q$1@ID-193866.news.uni-berlin.de...
> Ok, I received my sending unit in the mail and I've heard from several
> posters it should be calibrated before I put it in the tank. Question is
> how? I couldn't find a reference in my FSM for ohm settings and even if I
> did, how would I set the sending unit to read a specific value.
>
> I have a meter.
>
> Thanks for any help.
>
> Bill
>
>

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

I just bend the lever, just I'd adjust the level in the toilet
reservoir.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Paul Brogren wrote:
>
> Hi Bill,
>
> This is what I did. I hooked up the sending unit and the ground. and a
> good ground source at that. I just moved the float thing. Mine did not
> need adjustment. I left it. At empty it has approx. 2 gallons. At full
> all is good. The two gallons are a safety measure. I'm sorry I must admit.
> I don't know how to adjust it.
>
> --
> Thanks Always !!!
> Paul '75 CJ5 258
> Vail, CO.

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

I just bend the lever, just I'd adjust the level in the toilet
reservoir.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Paul Brogren wrote:
>
> Hi Bill,
>
> This is what I did. I hooked up the sending unit and the ground. and a
> good ground source at that. I just moved the float thing. Mine did not
> need adjustment. I left it. At empty it has approx. 2 gallons. At full
> all is good. The two gallons are a safety measure. I'm sorry I must admit.
> I don't know how to adjust it.
>
> --
> Thanks Always !!!
> Paul '75 CJ5 258
> Vail, CO.

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

I just bend the lever, just I'd adjust the level in the toilet
reservoir.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Paul Brogren wrote:
>
> Hi Bill,
>
> This is what I did. I hooked up the sending unit and the ground. and a
> good ground source at that. I just moved the float thing. Mine did not
> need adjustment. I left it. At empty it has approx. 2 gallons. At full
> all is good. The two gallons are a safety measure. I'm sorry I must admit.
> I don't know how to adjust it.
>
> --
> Thanks Always !!!
> Paul '75 CJ5 258
> Vail, CO.

Mike Romain

The only way I know of to 'calibrate' it would be to add a POT
(potentiometer) or variable resistor to it to get it exact, then take
it's reading and replace it with a regular resistor of the same ohms as
the POT reads.

I normally calibrate them this way.

I have a full gas can in the back and watch the gauge. When the gauge
reads empty, I mark the odometer reading and continue on until I run out
of gas. I then know how long after empty I can drive.

I have had some that were out period when the gauge stopped, and others
that left me 50-75 miles more.

Here is a link on the gauges and their meter readings:

http://www.monsterslayer.com/jeep/Gauges.htm

All that said, the new gauge I put in my CJ7 was exact. At 1/2 tank, I
had exactly 1/2 tank of gas left and E was freaking empty.

***** only lasted 1 week though, then it went bad on me. I have to tear
open my dash, I have a bad connection inside the fuel gauge at the
mechanical voltage regulator so now at full, it only reads 2/3 and I
have 1/3 left after empty. This makes my temp gauge read low too.

I tried to jumper in an electronic voltage regulator, but it only worked
for a few days too. The post inside has a bad connection at it's base.

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

William Oliveri wrote:
>
> Ok, I received my sending unit in the mail and I've heard from several
> posters it should be calibrated before I put it in the tank. Question is
> how? I couldn't find a reference in my FSM for ohm settings and even if I
> did, how would I set the sending unit to read a specific value.
>
> I have a meter.
>
> Thanks for any help.
>
> Bill

Mike Romain

The only way I know of to 'calibrate' it would be to add a POT
(potentiometer) or variable resistor to it to get it exact, then take
it's reading and replace it with a regular resistor of the same ohms as
the POT reads.

I normally calibrate them this way.

I have a full gas can in the back and watch the gauge. When the gauge
reads empty, I mark the odometer reading and continue on until I run out
of gas. I then know how long after empty I can drive.

I have had some that were out period when the gauge stopped, and others
that left me 50-75 miles more.

Here is a link on the gauges and their meter readings:

http://www.monsterslayer.com/jeep/Gauges.htm

All that said, the new gauge I put in my CJ7 was exact. At 1/2 tank, I
had exactly 1/2 tank of gas left and E was freaking empty.

***** only lasted 1 week though, then it went bad on me. I have to tear
open my dash, I have a bad connection inside the fuel gauge at the
mechanical voltage regulator so now at full, it only reads 2/3 and I
have 1/3 left after empty. This makes my temp gauge read low too.

I tried to jumper in an electronic voltage regulator, but it only worked
for a few days too. The post inside has a bad connection at it's base.

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

William Oliveri wrote:
>
> Ok, I received my sending unit in the mail and I've heard from several
> posters it should be calibrated before I put it in the tank. Question is
> how? I couldn't find a reference in my FSM for ohm settings and even if I
> did, how would I set the sending unit to read a specific value.
>
> I have a meter.
>
> Thanks for any help.
>
> Bill

Mike Romain

The only way I know of to 'calibrate' it would be to add a POT
(potentiometer) or variable resistor to it to get it exact, then take
it's reading and replace it with a regular resistor of the same ohms as
the POT reads.

I normally calibrate them this way.

I have a full gas can in the back and watch the gauge. When the gauge
reads empty, I mark the odometer reading and continue on until I run out
of gas. I then know how long after empty I can drive.

I have had some that were out period when the gauge stopped, and others
that left me 50-75 miles more.

Here is a link on the gauges and their meter readings:

http://www.monsterslayer.com/jeep/Gauges.htm

All that said, the new gauge I put in my CJ7 was exact. At 1/2 tank, I
had exactly 1/2 tank of gas left and E was freaking empty.

***** only lasted 1 week though, then it went bad on me. I have to tear
open my dash, I have a bad connection inside the fuel gauge at the
mechanical voltage regulator so now at full, it only reads 2/3 and I
have 1/3 left after empty. This makes my temp gauge read low too.

I tried to jumper in an electronic voltage regulator, but it only worked
for a few days too. The post inside has a bad connection at it's base.

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

William Oliveri wrote:
>
> Ok, I received my sending unit in the mail and I've heard from several
> posters it should be calibrated before I put it in the tank. Question is
> how? I couldn't find a reference in my FSM for ohm settings and even if I
> did, how would I set the sending unit to read a specific value.
>
> I have a meter.
>
> Thanks for any help.
>
> Bill