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| | | | Joined: May 2023 Posts: 443 'Bolter | | 'Bolter Joined: May 2023 Posts: 443 | I know I’ve seen several threads about sending units here but wanted to ask again.
How do I test a new sending unit. Can I just attached the positive to the center post and then clip on the base with the ground. Move the float and see if the ohms change.
Doug
1954 Chevy 3100One problem solved doesn’t seem to shorten the list Montgomery, ALIn Project Journals | | | | | Joined: May 2015 Posts: 11,009 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,009 |
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Mar 2014 Posts: 4,479 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,479 | Yes...at empty it should register 0 oms and at full it register 30 ohms.
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Dec 2020 Posts: 1,958 'Bolter | | 'Bolter Joined: Dec 2020 Posts: 1,958 | Question. Is that reading going to transfer properly to the actual gas gauge in the truck?
I am in the habit of testing the sending unit in the truck where I can watch the
needle move E to F.
~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel
| | | | | Joined: May 2023 Posts: 443 'Bolter | | 'Bolter Joined: May 2023 Posts: 443 | The new one I put in wasn't tested just took it on faith that it worked..
Tested this one and it reads just like it should.. 0 to 30 ohm from empty to full.. now I'll swap it out with the old (new) one and see if the gauge works..
Doug
1954 Chevy 3100One problem solved doesn’t seem to shorten the list Montgomery, ALIn Project Journals | | | | | Joined: Oct 2021 Posts: 6,707 'Bolter | | 'Bolter Joined: Oct 2021 Posts: 6,707 | Question. Is that reading going to transfer properly to the actual gas gauge in the truck?
I am in the habit of testing the sending unit in the truck where I can watch the
needle move E to F. Only if the float reaches all the way to the bottom of the tank and all the way to the top of the tank. Anywhere in between and you'll get approximations of fuel level. Adjust your float arm if necessary to accomplish this.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
| | | | | Joined: Dec 2020 Posts: 1,958 'Bolter | | 'Bolter Joined: Dec 2020 Posts: 1,958 | High F is OK with me, the E has to be right.
With all 3 of my tanks under frame, accessing the sending unit
after installation is hard to do sometimes. Thanks Otto!
~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel
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