Gas gauge ohms

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Gas gauge ohms

Postby Thomas Hamilton » Wed Jan 04, 2017 6:32 pm

Anyone out there know the ohm range for the 76 Vega gas gauge? Also anyone have a Pertronix 4 cylinder unit that they want to get rid of? Willing to pay $75 for an unused unit. Thanks.
Tom
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Re: Gas gauge ohms

Postby spencerforhire » Wed Jan 04, 2017 7:47 pm

It should be the same as most GM vehicles from the same era- 0 ohms empty to 90 ohms full.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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Location: Halifax, Nova Scotia

1972 Chevrolet Vega Hatchback

Re: Gas gauge ohms

Postby Monza Harry » Wed Jan 04, 2017 7:48 pm

Hi Thomas! Here are a few links hopefully with the answer you are looking for: viewtopic.php?f=44&t=31536 And this one: viewtopic.php?f=14&t=24377&start=15 I hope this is the part info you were asking about. As for the resistance of the gauge itself I have never seen that info and it is usually the ground or the sender itself [I would be reluctant to check it, as many gauges use even less current than some Multi-meters put out for the "Ohm's" setting]. The OEM sender isn't available anymore but as called out in these links there may be an alternative, also if you do the same search I did and go through all the results some one here took theirs apart and fixed it, time consuming Yes, Free, I seem to recall Yes! Harry Looks like Spencer beat me to it! :cuss: :censored:
I'm not a hoarder I'm a preservationist 78 Monza Spyder (~Soon(ish +/- I guess) To Be 2+2 with Spoilers)
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1978 Chevrolet Monza 2+2

Re: Gas gauge ohms

Postby spencerforhire » Wed Jan 04, 2017 10:11 pm

I work on a lot of old cars with wonky fuel gauges; 1/3 of the time it's a bad ground on the tank, 1/3 of them have a broken or corroded wire, and the rest the actual sender has failed. Almost never is it the gauge itself.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
User avatar
spencerforhire
 
Posts: 2442
Joined: Mon Jul 03, 2006 9:02 pm
Location: Halifax, Nova Scotia

1972 Chevrolet Vega Hatchback

Re: Gas gauge ohms

Postby Thomas Hamilton » Wed Jan 04, 2017 10:25 pm

Thanks guys for the info. I thought it was 0 to 90 but wanted to make sure before I ordered an aftermarket gauge. Thanks again.
Tom
Thomas Hamilton
 
Posts: 25
Joined: Tue Nov 24, 2015 3:43 pm


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