Re: [Chrysler300] Sending Unit Values - reply

["Terry Town" <terrytown@xxxx>]

Hmmm...

I wonder why the difference? I assumed that removing the sending unit from
the circuit and replacing it with the variable resistor (one lead to the
wire at the tank and the other to a good ground) would be an accurate way to
sort things out to get the various resistance values. I had a nice steady
5.0 Volts at the wire going into the sending unit (the pulsing type
regulator has been replaced with a solid state 5 volt one.).

I talked to Fremans in Montana yesterday and they have a used sending unit
that they'll part with for $50. So I guess I'll get one from them, it'll be
interesting to see what values it has and how it works with my gauge. Maybe
the few days I drove around with the fuel needle pegged hard right did some
damage to the fuel gauge and shifted it's readings?

Terry Lynch
'64 300 Sport
St. Petersburg, FL


----- Original Message ----- 
From: "John Hertog" <crossram@xxxx>
To: "Terry Town" <terrytown@xxxx>; "300 List Posts"
<Chrysler300@xxxxxxxxxxxxxxx>; "62-65 Mopar List"
<1962to1965mopars@xxxx>
Sent: Monday, August 25, 2003 11:54 PM
Subject: [Chrysler300] Sending Unit Values - reply


> Hi Terry,
>
> Here is copy of an e-mail rec'd from Jeff Carter, re: resistance values
for
> fuel tank senders:
>
> "You might try checking the sending unit you just removed with an ohm
> meter-- it should
> read approximately 10 ohms resistance at the full limit, and about 73 ohms
> at the empty stop."
>
> Just for the heck of it, I just measured the resistance in a good,
original
> sender. I came up with 10.8 Ohms full, and 74.5 at empty with an
accurate,
> digital meter
>
> John
>
>
> John

----- Original Message ----- 
From: "John Hertog" <crossram@xxxx>
To: "Terry Town" <terrytown@xxxx>; "300 List Posts"
<Chrysler300@xxxxxxxxxxxxxxx>; "62-65 Mopar List"
<1962to1965mopars@xxxx>
Sent: Monday, August 25, 2003 11:54 PM
Subject: [Chrysler300] Sending Unit Values - reply


> Hi Terry,
>
> Here is copy of an e-mail rec'd from Jeff Carter, re: resistance values
for
> fuel tank senders:
>
> "You might try checking the sending unit you just removed with an ohm
> meter-- it should
> read approximately 10 ohms resistance at the full limit, and about 73 ohms
> at the empty stop."
>
> Just for the heck of it, I just measured the resistance in a good,
original
> sender. I came up with 10.8 Ohms full, and 74.5 at empty with an
accurate,
> digital meter
>
> John
>
>
> John
>
>
>
>
> ----- Original Message ----- 
> From: "Terry Town" <terrytown@xxxx>
> To: "300 List Posts" <Chrysler300@xxxxxxxxxxxxxxx>; "62-65 Mopar List"
> <1962to1965mopars@xxxx>
> Sent: Monday, August 25, 2003 6:25 PM
> Subject: [Chrysler300] Sending Unit Values
>
>
> > Thanks to all who responded to my email last week. In troubleshooting my
> fuel gauge problems on my '64 this weekend I put a variable resistor where
> the fuel sending unit would normally go. This allowed me to verify that I
do
> indeed have a bum sender, but it also allowed me to note the various
> resistance values that it took to drive my fuel gauge to various settings.
> >
> > Full = 5.5 Ohms
> > 3/4 = 12.5 Ohms
> > 1/2 = 19.5 Ohms
> > 1/4 = 29 Ohms
> > Empty = 57 Ohms
> >
> > I don't know how typical this will be for other Mopars, but that's what
it
> is on my '64 300.
> >
> > Terry Lynch
> > St. Petersburg, FL
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > To send a message to this group, send an email to:
> > Chrysler300@xxxxxxxxxxxxxxx
> >
> > For list server instructions, go to
> http://www.chrysler300club.com/yahoolist/inst.htm
> >
> > To unsubscribe from this group, send an email to:
> > Chrysler300-unsubscribe@xxxxxxxxxxxxxxx
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
> To send a message to this group, send an email to:
> Chrysler300@xxxxxxxxxxxxxxx
>
> For list server instructions, go to
http://www.chrysler300club.com/yahoolist/inst.htm
>
> To unsubscribe from this group, send an email to:
> Chrysler300-unsubscribe@xxxxxxxxxxxxxxx
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>