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Re: new gas sending unit ohms numbers
[Re: Cab_Burge]
#2184943
10/28/16 10:51 PM
10/28/16 10:51 PM
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Joined: Jun 2008
Posts: 1,822
Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Simpson 260 and Triplett anolog meters will out last every one of us. Digitial meters with even the slightest over voltage condition will be toast in milliseconds. EMP that all the preppers are so worried about will render the digitals useless.
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
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Re: new gas sending unit ohms numbers
[Re: moparpro]
#2185487
10/29/16 08:51 PM
10/29/16 08:51 PM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Ever get your 260 calibrated?
Drop it once and it needs calibration.
Drop it once and it needs a new case. Bakelite breaks real easy.
You realize that 260's will also be useless in an EMP event?
Still have electronics inside them.
I don't know what digital meters you use, but the good ones have auto ranging so unless you exceed the 600V or 1000V rating of the meter you shouldn't fry anything and if you do exceed those limits you shouldn't be messing with electricity to begin with.
I used to have to fix and calibrate 260's in the Navy. Two things I learned, a 260 was never in cal when I got it and the Flukes always were.
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: new gas sending unit ohms numbers
[Re: Supercuda]
#2185570
10/29/16 10:20 PM
10/29/16 10:20 PM
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Joined: Aug 2003
Posts: 43,296
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,296
Bend,OR USA
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All of our VOM had leather cases,Simpson or Tripletts. I've seen more than one Simpson meter in its case get drop from 21 ft. above ground and not break the case  Different work inviroiments(SP?) probably result in different results. Our guys had to fix the problem they were assigned to fix that day and usually had multiple tools to do the job, they took good care of their best tools
Last edited by Cab_Burge; 10/29/16 10:21 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: new gas sending unit ohms numbers
[Re: patosmith]
#2185949
10/30/16 05:12 PM
10/30/16 05:12 PM
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Joined: Aug 2003
Posts: 43,296
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,296
Bend,OR USA
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Is the needle above the E or right on it when it has 3 gallons left or below the E? If above or right on it that is good, if below you know you still have 3 gallons to get to a fuel stop   Either way you now know exactly what you have   My airplane would empty the 30 gallon right tank when it read between 1/4 and empty  That really rattled me the first time it did that  Luckily the left tank was still full I filled both tanks when I landed, the right tank took 29.7 gallons, the gauge was accurate at full only  I replace that sender ASAP and I had to calibrate (bend it down to sit on the bottom of the cell) the new one to get it accurate at empty per the FAA regulations Ain't hot rodding fun 
Last edited by Cab_Burge; 10/30/16 05:18 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: new gas sending unit ohms numbers
[Re: Cab_Burge]
#2186598
10/31/16 12:24 PM
10/31/16 12:24 PM
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Joined: Jun 2008
Posts: 1,822
Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Wire wound rheostats are made usually of nichrome wire. Nichrome came in different resitances per length of wire. So different types will have different number of turns to achieve the proper total resistance. The number of turns are adjusted to achieve the desired total. The number of turns only effects the resolution as long as the total ohms is the same.
The main reason none of the newer senders are accurate is because years ago manufacturers decided Ford and Mopar senders were close enough to each other, they quit making them to match Mopar. So once again, we got tossed to the curb. The Tanks, Inc sender went to 5/8 of a tank when full. Just put in a Spectra tank. Should know this afternoon where it goes on full.
Craig
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
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Re: new gas sending unit ohms numbers
[Re: moparpro]
#2188220
11/02/16 07:27 PM
11/02/16 07:27 PM
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Joined: Jun 2008
Posts: 1,822
Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Follow up: Just finished the installation of a Spectra CR8CFI fuel injection tank that came complete with the in tank fuel pump and senver gauge. Filled the tank and the gauge went to just above full. First after market sender that fully deflected the gauge I have run into. The gauge measured 8 ohms when full.
Craig
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
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