Ya the ring, not reliable! Your car had a ground strap made of heavy tin that snapped over the fuel line and the nipple on the sender bridging the rubber hose thus the ground from the factory. A lot of people removed them not realizing what they are or they just biodegraded and fell off. You may get lucky and get a temporary ground through the straps and the locking ring but the slightest corrosion will cancel that out, much like on a dirty battery terminal. It is called electrolytic corrosion caused by two dissimilar metals in contact with each other. The corrosion is a good insulator! Look at it like the metals don't like each other and build up a barrier so they don't have to touch each other! I believe Gary H had a link to the re-pop of the factory ground bridge on here not long ago if you want to go that route. For now what I would do (It ant pretty but) is get two hose clamps and a eyelet and a long piece of wire that need not be insulated Hose clamp the wire to the nipple between the hose and base of the sender, jump over the hose to the fuel line clean it up and hose clamp the wire to the fuel line. That should work as a ground just fine but, grounding it to the frame also will be even better. That will give you a three point ground if your with me! Now if you have a flashing test light at the wire in the back and a good connection to your sender I bet your gauge will work! Let me know how this works. Herb 1956 Plymouth Belvedere 361 1959 Coronet 326 Poly 1961 Belvedere Custom Suburban 318 Poly 1962 Dodge Dart 225 Slant Six 1963 Fury 2D/HT 6.1L 1963 Sport Fury Convertible 361 1999 Durango SLT 5.9L 2008 SRT-8 Magnum 6.1L St. Louis, MO. http://1962to1965mopar.ornocar.com/mmo42009.html GOD Drives a Plymouth ".... GOD, in his FURY, drove them forth from Eden...." Genesis 3:23 -------Original Message------- From: William Harrison Date: 8/18/2010 9:29:03 AM To: 1962to1965mopars@xxxxxxxxxx Subject: Re: sending unit Herb The unit is supposed to be grounded by the locking ring but it could be that it is not working. I just now remembered that after I had the underside of the car sand blasted I then painted it with a por 15 type of paint and I also lined the top of the tank area with rubber, so it could be that I don't have a ground....Doh. I will attach a separate ground wire today. Thanks Bill - On Wed, 8/18/10, Herb <zephyr9900@xxxxxxxxxxx> wrote: > From: Herb <zephyr9900@xxxxxxxxxxx> > Subject: Re: sending unit > To: "1962 to 1965 Mopars" <1962to1965mopars@xxxxxxxxxx> > Date: Wednesday, August 18, 2010, 10:12 AM > > > Are you grounding the sender to the fuel line or frame, or > both? I'm > talking grounding the Sender it's self not the tank! > The sender is usually > insulated by the O ring I belive you said you had a > flashing light when > testing at the sender wire at the back? > > > > > -------Original Message------- > > From: William Harrison > Date: 8/18/2010 8:40:17 AM > To: 1962to1965mopars@xxxxxxxxxx > Subject: sending unit > > I am to the point that I am really ready to take a BFH to > my 65 Coronet. > I replaced the gas tank sending unit and the gauge and > still no reading. > It just can't be 2 new sending units in a row can it?? > Thoughts??? > Thanks > Bill Harrison > > > ---- > Please address private mail -- mail of interest to only one > person -- > directly to that person. I.e., send parts/car > transactions and negotiations > as well as other personal messages only to the intended > recipient, not to > the Clubhouse public address. This practice will protect > your privacy, > reduce the total volume of mail and fine tune the content > signal to Mopar > topic. Thanks! > > 1962 to 1965 Mopar Clubhouse Discussion Guidelines: > http://www.1962to1965mopar.ornocar.org/mletiq.html and > http://www > 1962to1965mopar.ornocar.com/general_disclaimer.html. > > > > [Non-text portions of this message have been removed] > > > ---- > Please address private mail -- mail of interest to only one > person -- directly to that person. I.e., send > parts/car transactions and negotiations as well as other > personal messages only to the intended recipient, not to the > Clubhouse public address. This practice will protect your > privacy, reduce the total volume of mail and fine tune the > content signal to Mopar topic. Thanks! > > 1962 to 1965 Mopar Clubhouse Discussion Guidelines: > http://www.1962to1965mopar.ornocar.org/mletiq.html and > http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. > > > > [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. This email was sent to: arc.6265@xxxxxxxxxxxxxx u/?bUrDWg.bSONJP.YXJjLjYy ?p=TEXFOOTER