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    #16
    I think the 79-89 fuel level senders are the opposite electrically as 90+ and digital dash. Resistance values increase on one and decrease on the other. I vaguely remember that being an issue with using later fuel tanks in boxes.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
    Originally posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Originally posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

    Comment


      #17
      Correct. And on an early digi dash TC I found the resistance range was much wider than the '90+ resistance range but same direction (increasing or decreasing, too lazy to look it up at the moment). When I measured it in the JY I thought it was a bad sending unit (despite coming from a literally mint car, maybe Derek remembers that one, crying shame). After I got home and did some research I found the reading in the yard was correct. This TC was probably not newer than '83. By '88 the digidash sending unit may have changed resistance range to not be so wide considering analog changed sometime in '88 or for sure for '89 to match exactly the '90+ range and direction.
      Vic

      ~ 1989 MGM LS Colony Park - Large Marge
      ~ 1998 MGM LS - new DD
      ~ 1991 MGM LS "The Scab"
      ~ 1991 MGM GS "The Ice Car"

      Comment


        #18
        yeah the digital ones I think run both opposite the analog, and have a wider range but I'm not about to go fetch my manuals to confirm. I just took the lot of them back out to the garage last night. Whatever it is, its unique to the digital dash.
        86 Lincoln Town Car (Galactica).
        5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

        91 Lincoln Mark VII LSC grandpa spec white and cranberry

        1984 Lincoln Continental TurboDiesel - rolls coal

        Originally posted by phayzer5
        I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

        Comment


          #19
          Originally posted by VicCrownVic View Post
          By '88 the digidash sending unit may have changed resistance range to not be so wide considering analog changed sometime in '88 or for sure for '89 to match exactly the '90+ range and direction.
          And when I say analog changed in '88 (possibly mid-year '88) that's for TC only which adopted the '90+ resistance range and direction but retained the separate sending unit through the end of the '89 model year.
          Vic

          ~ 1989 MGM LS Colony Park - Large Marge
          ~ 1998 MGM LS - new DD
          ~ 1991 MGM LS "The Scab"
          ~ 1991 MGM GS "The Ice Car"

          Comment


            #20
            The cluster on the 88-89 Towncar is different than the older one so it would make sense if the sender is different that started in 1988.

            Master parts manual for 80-81 Lincoln and 82-89 Towncar has a lot of choices

            5.0 cars
            80 w/o electronic cluster E0LY-9275-B
            80 w/ electronic E1LY-9275-C
            81-83 w/o electronic cluster Canada E0AZ-9275-D
            81-87 w/o electronic except Canada E0LY-9275-B
            81-84 w/ electronic exc Canada E1LY-9275-C
            81-83 w/ electronic Canada E1LY-9275-D
            82 w/ tripminder Canada E0LY-9275-E
            85-89 w/ electronic cluster E5VY-9275-A
            88-89 w/o electronic cluster E9VY-9275-A


            5.8 cars 80-81
            80 w/o electronic cluster E0LY-9275-A
            80-81 w/ electronic E0LY-9275-E
            86 Lincoln Town Car (Galactica).
            5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

            91 Lincoln Mark VII LSC grandpa spec white and cranberry

            1984 Lincoln Continental TurboDiesel - rolls coal

            Originally posted by phayzer5
            I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

            Comment


              #21
              Wtf, digidash sender changed in '85, I assumed it would have changed in '88 when the sender for analog cluster changed. That is a lot of changes, some being feel system changes and some resistance changes.
              I wonder if the digidash sender change in '85 went to the same resistance range as all '90+ panthers (aeros and whales included) like the analog change in '88. Probably not since the '88-'89 sender is listed for analog only.
              Vic

              ~ 1989 MGM LS Colony Park - Large Marge
              ~ 1998 MGM LS - new DD
              ~ 1991 MGM LS "The Scab"
              ~ 1991 MGM GS "The Ice Car"

              Comment


                #22
                Originally posted by gadget73 View Post
                The cluster on the 88-89 Towncar is different than the older one so it would make sense if the sender is different that started in 1988.

                Master parts manual for 80-81 Lincoln and 82-89 Towncar has a lot of choices

                5.0 cars
                80 w/o electronic cluster E0LY-9275-B
                80 w/ electronic E1LY-9275-C
                81-83 w/o electronic cluster Canada E0AZ-9275-D
                81-87 w/o electronic except Canada E0LY-9275-B
                81-84 w/ electronic exc Canada E1LY-9275-C
                81-83 w/ electronic Canada E1LY-9275-D
                82 w/ tripminder Canada E0LY-9275-E
                85-89 w/ electronic cluster E5VY-9275-A
                88-89 w/o electronic cluster E9VY-9275-A


                5.8 cars 80-81
                80 w/o electronic cluster E0LY-9275-A
                80-81 w/ electronic E0LY-9275-E
                So...this corrupts some of the community knowledge I think, and reveals an interesting thing. Guy at the yard I used to frequent locally told me that the digital cluster cars in the 80s used unique senders, and I didn't believe it at the time because it seems so stupid that there'd be no sense in it, yet here we can clearly see there are electronic and non-electronic variants all through the 80s. Disclaimer added to first post in thread.

                I have received my two new sending units today. They break down as follows:

                E0LY-9275-E on the box, E0LF-9275-A stamped into the part, no additional sticker on part
                Has return line fitting.
                Uses the "backwards" resistance scale like a 90+.
                Has an additional ground strap between the float arm and the body (I concluded this is to enhance accuracy and reduce jumpiness).
                Has a differently pinned version of the electrical connector - none of the cars I own have a connector that mates with this.
                These points made me conclude before re-reading Gadget's notes, that this is for a 351 Lincoln with digital cluster.

                Click image for larger version  Name:	E0LY-9275-E-2.jpg Views:	1 Size:	132.6 KB ID:	1289231 Click image for larger version  Name:	E0LY-9275-E-1.jpg Views:	1 Size:	129.0 KB ID:	1289232

                F0AZ-9275-B on the box, F0AU-9275-BA on a label on the part covering where the stamped number would appear
                Has return line fitting.
                Uses the "backwards" resistance scale like a 90+.
                These points made me conclude that this is for a 1990-1991 Ford or Mercury with 351. It is the sedan version of the part. Earlier comment about 90-91 not using the 2" sender on sedans is not correct; carb 90-91 still uses the old setup.
                edit 2024-01-22: I have now sold the F0 part and don't have it anymore. The buyer was buying it for a '91 351 car.

                Click image for larger version  Name:	F0AZ-9275-B-2.jpg Views:	1 Size:	116.1 KB ID:	1289233Click image for larger version  Name:	F0AZ-9275-B-1.jpg Views:	1 Size:	108.9 KB ID:	1289234

                Thoughts in a video: https://www.youtube.com/watch?v=5fc-QWQe-xE

                Accordingly, neither of these parts are actually usable for me as they exist today (nor is either usable for Grand1). My initial thought was that I could just swap the resistor component over from my existing part, however I have realized this is subtly more complicated than originally thought. The mechanism is installed in reverse (not on the same side of the part) between my bad part and these new ones.

                Can still be done, just going to take a little more engineering than I wanted.
                Last edited by kishy; 01-22-2024, 02:32 PM.

                Current driver: Ranger
                Panthers: 83 GM 2dr | 84 TC | 85 CS
                | 88 TC | 91 GM
                Not Panthers: 85 Ranger | Ranger trailer | 91 Acclaim | 05 Focus
                Gone: 97 CV | 83 TC | 04 Focus | 86 GM
                | Junkyards

                Comment


                  #23
                  The resistance ranges on the electronic vs analog senders are definitely not the same. I believe they are opposite the analog one, and the resistance is different. Specifics are in the EVTM.

                  Ford did the same thing on the Mark VII. Not only are the resistance ranges different digital vs analog, the analog is actually a dual range, one for the gauge, the other for the "distance to empty" function on the tripminder.
                  86 Lincoln Town Car (Galactica).
                  5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                  91 Lincoln Mark VII LSC grandpa spec white and cranberry

                  1984 Lincoln Continental TurboDiesel - rolls coal

                  Originally posted by phayzer5
                  I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                  Comment


                    #24
                    Thanks to a stroke of absolute luck and with some help from a valued friend on here, I've actually now got my hands on the correct NOS part for my car!

                    I'm adding it here because it's relevant information in case someone stumbles upon this thread looking for pics.

                    D9AZ-9275-A on the box, D9AF9275AB stamped into the part, no additional sticker on part
                    Does not have return line fitting.
                    Uses the correct resistance scale for a Ford/Mercury pre-90 box.
                    Has connector correct for a Ford/Mercury pre-90 box.
                    The part has a stamped logo for presumably the manufacturer, Linden (as well as the Ford emblem).
                    The eBay seller advertised this as being for a wagon specifically, but the part is identical to the one that came out of my sedan, and I have no reason to believe that car had the incorrect part installed.

                    Click image for larger version

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ID:	1289770 Click image for larger version

Name:	D9AZ-9275-A-2.jpg
Views:	1
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ID:	1289771 Click image for larger version

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ID:	1289772

                    This of course means that I will be able to repair my 83MGM without needing to complete the refurbishment of the parts I already have, but I will continue that thread with progress in that area when I get around to it again. I'd like to see the existing parts be restored to usable condition because eventually, someone is going to need one.

                    Current driver: Ranger
                    Panthers: 83 GM 2dr | 84 TC | 85 CS
                    | 88 TC | 91 GM
                    Not Panthers: 85 Ranger | Ranger trailer | 91 Acclaim | 05 Focus
                    Gone: 97 CV | 83 TC | 04 Focus | 86 GM
                    | Junkyards

                    Comment


                      #25
                      Awesome!
                      ~David~

                      My 1987 Crown Victoria Coupe: The Brown Blob
                      My 2004 Mercedes Benz E320:The Benz

                      Originally posted by ootdega
                      My life is a long series of "nevermind" and "I guess not."

                      Originally posted by DerekTheGreat
                      But, that's just coming from me, this site's biggest pessimist. Best of luck

                      Originally posted by gadget73
                      my car starts and it has AC. Yours doesn't start and it has no AC. Seems obvious to me.




                      Comment

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