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  1. #1
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    Thumbs up Tank-corrected Fuel Sender for Classics

    Electronic Programmed Fuel Sending Unit



    As some of you know, I have been working on the programming for an electronic sending unit. The intent of the project has been to come up with one design that can be utilized in several different tank styles that have been used in certain Donzis throughout the years. In other words, these will correct for the odd-shape of the Classic’s tanks. You will get a more accurate reading throughout the range of your fuel gauge.
    Well, I have just finished working with the manufacturer on the programming aspects and am in the process of placing and order. Some pertinent info on the sender is listed below.

    Information and Highlights

    • Continuous readout
    • No field trimming
    • No moving parts
    • 2 Terminal, no battery lead needed to the sender
    • 12 volt
    • Compatible with most 240E/33F ohm gauges See below for list
    • 5 hole SAE pattern
    • Gasoline only
    • Water Indication, meter will peg to above full when water hits the probe
    • Rugged and Reliable
    • 2 Year Manufacturer’s Warranty


    Compatible gauge manufacturers
    Datcon, Livorsi, Gaffrig (newer than 1996), OMC, Stewart Warner, Teleflex, US Gauge, Autometer (3316/3516)

    VDOs are questionable. I will have to check with manufacturer. Some of VDO gauges are wired backwards from standard meters. I checked with manu last night and the 1996, 1997 VDOs should be compatible. Don't know what other years they were used. Check with me in advance and we can perform a compatibility check to verify compliance.

    Incompatible manufacturers
    Westach, Gaffrig (pre-1996), Tempo, some VDOs, Rochester, Wema, Yamaha

    Compatibility check
    Remove the leads from the back of your existing gauge. Ignore the wiring for the light.
    Take an ohm reading from S to the Gnd terminal. Should be 300-500 ohms.
    Take a second reading from S to + terminal. Maybe in the 50-200 ohm range.
    Get me those readings and we can check the compatibility of your gauge.


    Most-Compatible Tanks
    These are not all, but the best of the tanks I have check so far. I will check any other tank if you have the dimensions or drawings. These are mostly a classic style tank with tapered sides and a varying bottom width and 9.5-11 inch depth.

    Older 22, 88-93, Alum, 55g, Accuracy > 99%
    Newer 22, 93-98, Alum, 55g, Accuracy > 99%
    Newest 22, 99-??, Plastic, 52 g, Accuracy > 99%
    18C and 20C, Years??, Alum, 41g, Accuracy > 99%
    Hornet, Alum, 60g, Accuracy > 96%

    Accuracy is in relation to the design curve.

    Incompatible tanks
    16 and 18, 25 gallon tanks from the 70’s.

    Like I said, get me some boat information, a drawing, or dimensions, and I will check to see if you tank will work. I have a limited amount of information on all the tanks throughout the years.

    Comparison curves for your tank will be supplied upon request, if I have it.

    Pricing
    I got the price down as best that I could with the amount that I ordered. These came in at $75.00 each, and shipping. My guess is that shipping will be about $10 for the lower 48. So, let’s call it $85.00 shipped, and be done with it. I am not in this to make money so, if this goes well, I will try to get a lower price on future orders, no promises. \

    Options
    I now have some options for your convenience.
    (5) #10-32 x 1.25" Machine screws and washers for $2.00 None are included with the sender.


    Shipping
    This original will be available in 2-3 weeks from now. Not sure of the date yet.
    I will ship as soon as they become available to me.

    Payment
    I will take a check or money order.
    Mail to:
    Robert Wilson
    1203 Pinar Dr.
    Orlando, FL 32825

    Or Paypal. If doing Paypal, use the Personal/Other tab to send a payment to tidbitnh@yahoo.com. Funds from bank account or Paypal balance only. No credit cards, I am not paying the fees.

    Any questions, call me at 321-436-5704 or email on the link under my name.

    Thanks, Bob (Tidbart)
    Last edited by Tidbart; 05-13-2011 at 12:40 PM. Reason: Price change. See post #36 for details. Added compat check.
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  2. #2
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    I wonder if the 87' 22C tanks are the same as the 88' tanks.??.
    Never Kick a opossum at 40 mph!

  3. #3
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    Quote Originally Posted by Planetwarmer View Post
    I wonder if the 87' 22C tanks are the same as the 88' tanks.??.
    I have been trying to verify this for the last few weeks. Farmer TX said that his 86 22C has the same tank as an 84 Critter. My guess is that you have the same tank, should be by Florida Marine Tank, FMT-DZ-54. Nobody has had a chance to read their tank tag or send me a drawing or dimensions, yet.
    Any chance you could get a look at your tag?

    Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  4. #4
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    Quote Originally Posted by Planetwarmer View Post
    I wonder if the 87' 22C tanks are the same as the 88' tanks.??.
    Duh, I just emailed FMT and asked for the drawing. We will see what happens. Meanwhile get some info on your tank tag and gauge if you are interested.

    Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  5. #5
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    Assuming it'll work on my '90 22c, I'll take one.
    1982 18' 2+3
    SOLD - 1990 22' Classic, ATS Racing built 466 Ford, OMC King Cobra Hump back

  6. #6
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    Quote Originally Posted by CaribouLou View Post
    Assuming it'll work on my '90 22c, I'll take one.
    C-Lou
    I included that tank in the study. It should be the "Old 22 Tank", AFP (now RDS), 55g, and it is compatible. I will need to know what gauge you are using, and if you get a couple minutes, pull the inspection plate and check the tank tag for size and manufacturer.
    Then we can go from there.

    Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  7. #7
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    I'm using a livorsi fuel gauge, and i'll check the inspection cover for numbers and such tomorrow.
    1982 18' 2+3
    SOLD - 1990 22' Classic, ATS Racing built 466 Ford, OMC King Cobra Hump back

  8. #8
    margo Guest

    86 Minx

    Do you have one for the minx? Don,t know the tank size...Fiara guage..If you do will send money...Have pay pal how do i send ..Thanks Joe

  9. #9
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    Quote Originally Posted by margo View Post
    Do you have one for the minx? Don,t know the tank size...Fiara guage..If you do will send money...Have pay pal how do i send ..Thanks Joe
    Joe,

    Gauge should not be an issue. Tank, not sure if I have any info on that one. I will check my file when I get home. In the mean time, can you look at the nameplate on the tank and see what info can be had from it. Should be under an inspection plate in the middle of the c0ckpit, I would guess. I don't know about the Minx, specifically. Manufacturer, gallons, model number would help. In the mean time, I will email George Carter, he may have all the info on that tank as he restored one completely, a couple of years ago.
    We will see what we can do for you.

    Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  10. #10
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    Joe,

    I did a search and found what should be your tank. It should be an FMT 41g., model 54412.

    I would still like you to confirm this info.

    That tank, the 41g., is almost exactly in line with the Tidbart1 sender, less than 0.5% off.

    So if you do have that tank, I will have the sender. However, I just sold the last 2 that I had at the house and need to make another order. I was waiting for someone else to show interest before doing so.

    So, if you don't mind waiting for it, check the tank info, and get back to me. We can talk specifics or the order later.

    Thanks for the interest.

    Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  11. #11
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    Yes I Will....

    I will take one for my '88 22C if you still have some.....
    Oledawg
    Raconteur, bon vivant, curmudgeon
    Other duties as assigned


    Lake Tillery, NC
    - Heart of the Uwharrie Mountains

    '88 Donzi Classic 22 "Bad Nuff" - 482 stroker 454, Bravo One, Solas 4 blade, Red/White hull, White Deck ( "drivin" boat )

    '87 Correct Craft Riviera "Oledawg" - 454 PCM ( "cruzin" boat )


    "A man without a boat is a prisoner" - Faronese proverb

  12. #12
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    Quote Originally Posted by oledawg View Post
    I will take one for my '88 22C if you still have some.....
    Oledawg,

    Do you know what gauge you have in the boat? VDO???

    I am putting together another order and will include you. Get back to me on the meter.

    Thanks, Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  13. #13
    margo Guest

    margo

    Quote Originally Posted by Tidbart View Post
    Joe,

    I did a search and found what should be your tank. It should be an FMT 41g., model 54412.

    I would still like you to confirm this info.

    That tank, the 41g., is almost exactly in line with the Tidbart1 sender, less than 0.5% off.

    So if you do have that tank, I will have the sender. However, I just sold the last 2 that I had at the house and need to make another order. I was waiting for someone else to show interest before doing so.

    So, if you don't mind waiting for it, check the tank info, and get back to me. We can talk specifics or the order later.

    Thanks for the interest.

    Bob
    Sorry for the delay, will check my tank as soon as possible and let you know in a day or so...Joe

  14. #14
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    Quote Originally Posted by margo View Post
    Sorry for the delay, will check my tank as soon as possible and let you know in a day or so...Joe
    No problem, Joe. Not going anywhere soon. I have a few on-hand, so let me know.

    Bob
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  15. #15
    Join Date
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    Please read all this info, if you are interested in ordering on of these.

    Bob


    Quote Originally Posted by Tidbart View Post
    Electronic Programmed Fuel Sending Unit

    As some of you know, I have been working on the programming for an electronic sending unit. The intent of the project has been to come up with one design that can be utilized in several different tank styles that have been used in certain Donzis throughout the years. In other words, these will correct for the odd-shape of the Classic’s tanks. You will get an accurate reading throughout the range of your fuel gauge.
    Well, I have just finished working with the manufacturer on the programming aspects and am in the process of placing and order. Some pertinent info on the sender is listed below.

    Information and Highlights

    • Continuous readout
    • No field trimming
    • No moving parts
    • 2 Terminal, no battery lead needed to the sender
    • 12 volt
    • Compatible with most 230/33 ohm gauges See below for list
    • 5 hole SAE pattern
    • Gasoline only
    • Water Indication, meter will peg to above full when water hits the probe
    • Rugged and Reliable
    • 2 Year Manufacturer’s Warranty


    Compatible gauge manufacturers
    Datcon, Livorsi, Gaffrig (newer than 1996), OMC, Stewart Warner, Teleflex, US Gauge, Autometer (3316/3516)

    VDOs are questionable. I will have to check with manufacturer. Some of VDO gauges are wired backwards from standard meters. I checked with manu last night and the 1996, 1997 VDOs should be compatible. Don't know what other years they were used. Check with me in advance and we can perform a compatibility check to verify compliance.

    Incompatible manufacturers
    Westach, Gaffrig (pre-1996), Tempo, some VDOs, Rochester, Wema, Yamaha

    Compatibility check
    Remove the leads from the back of your existing gauge. Ignore the wiring for the light.
    Take an ohm reading from S to the Gnd terminal. Should be 300-500 ohms.
    Take a second reading from S to + terminal. Maybe in the 50-200 ohm range.
    Get me those readings and we can check the compatibility of your gauge.


    Most-Compatible Tanks
    These are not all, but the best of the tanks I have check so far. I will check any other tank if you have the dimensions or drawings. These are mostly a classic style tank with tapered sides and a varying bottom width and 9.5-11 inch depth.

    Older 22, 88-93, Alum, 55g, Accuracy > 99%
    Newer 22, 93-98, Alum, 55g, Accuracy > 99%
    Newest 22, 99-??, Plastic, 52 g, Accuracy > 99%
    18C and 20C, Years??, Alum, 41g, Accuracy > 99%
    Hornet, Alum, 60g, Accuracy > 96%

    Accuracy is in relation to the design curve.

    Incompatible tanks
    16 and 18, 25 gallon tanks from the 70’s.

    Like I said, get me some boat information, a drawing, or dimensions, and I will check to see if you tank will work. I have a limited amount of information on all the tanks throughout the years.

    Comparison curves for your tank will be supplied upon request, if I have it.

    Pricing
    I got the price down as best that I could with the amount that I ordered. These came in at $75.00 each, and shipping. My guess is that shipping will be about $10 for the lower 48. So, let’s call it $85.00 shipped, and be done with it. I am not in this to make money so, if this goes well, I will try to get a lower price on future orders, no promises. \

    Options
    I now have some options for your convenience.
    (5) #10-32 x 1.25" Machine screws and washers for $2.00 None are included with the sender.
    (1) Neoprene gasket for $3.00 The sender comes with a Buna-N Cork gasket.

    Shipping
    This original will be available in 2-3 weeks from now. Not sure of the date yet.
    I will ship as soon as they become available to me.

    Payment
    I will take a check or money order.
    Mail to:
    Robert Wilson
    1203 Pinar Dr.
    Orlando, FL 32825

    Or Paypal. If doing Paypal, use the Personal/Other tab to send a payment to tidbitnh@yahoo.com. Funds from bank account or Paypal balance only. No credit cards, I am not paying the fees.

    Any questions, call me at 321-436-5704 or email on the link under my name.

    Thanks, Bob (Tidbart)
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

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