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  1. #11

    Re: Fuel gauge trust

    Pull the gauges, clean the rods, make sure the floats are free and rods are straight. I trust mine 100% after doing that. It’s easy work.

  2. #12

    Re: Fuel gauge trust

    Is there a particular knack (or tool) for removing the gauges?

  3. #13

    Re: Fuel gauge trust

    Quote Originally Posted by scottinsydney View Post
    Is there a particular knack (or tool) for removing the gauges?
    A big socket.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  4. #14

    Re: Fuel gauge trust

    It s a little tricky to calibrate a dip stick on the harts because of the shape of the tanks buts it's doable while
    Filling.

    I always run a a fuel log in a spreadsheet on my phone. With Electronic engines or flow meters it s easier but you can do it once you know your burn at various RPM on mechanical engines. You can even enter your GPS odometer and get NMPG numbers.
    Pascal
    Miami, FL
    1970 53 MY #325 Cummins 6CTAs
    2014 26' gaff rigged sloop
    2007 Sandbarhopper 13
    12' Westphal Cat boat

  5. #15

    Re: Fuel gauge trust

    Quote Originally Posted by Pascal View Post
    It s a little tricky to calibrate a dip stick on the harts because of the shape of the tanks buts it's doable while
    Filling.

    I always run a a fuel log in a spreadsheet on my phone. With Electronic engines or flow meters it s easier but you can do it once you know your burn at various RPM on mechanical engines. You can even enter your GPS odometer and get NMPG numbers.
    You are right. With the Hart you need to make a tank chart.

    Run one tank out then switch to the other tank. Fill the empty tank and stop every 5 or 10 gallons and get a reading all the way up to full. Then you have a tank chart. Repeat for the other tank. You'll know exactly where it runs out.

    The other option to copy someone else's chart for the same model boat. But it may not be 100% accurate on where it runs out.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  6. #16

    Re: Fuel gauge trust

    Quote Originally Posted by scottinsydney View Post
    Is there a particular knack (or tool) for removing the gauges?
    I used a large F wrench but a large socket will work great. If memory serves me it’s a 2 1/2” socket but don’t go to the bank with my memory.
    SEVEN
    1979 53' MY Hull #563
    Antioch, California

  7. #17

    Re: Fuel gauge trust

    Quote Originally Posted by SEVEN View Post
    I used a large F wrench but a large socket will work great. If memory serves me it’s a 2 1/2” socket but don’t go to the bank with my memory.
    An F wrench or a big F'in wrench?
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  8. #18

    Re: Fuel gauge trust

    I can check on socket size in the next couple of days. They make an irrigation socket for $30 that will do the job. Otherwise it’s a $125 investment. With a big bar mine spun right out. Like most things, once you put your own eyes on the mechanics of it you will trust it. Paying someone else to do it won’t really help your confidence as much.

  9. #19

    Re: Fuel gauge trust

    F or scanner wrench.
    Attached Images
    SEVEN
    1979 53' MY Hull #563
    Antioch, California

  10. #20

    Re: Fuel gauge trust

    Just backing up previous posters. Pulled the sticky gauges, cleaned the rods and have been accurate for 7 years.
    Luckily my prop nuts that I have a spanner for were the same size. I think 2 1/2". Required a bar on it to get the gauges out.
    Tanks on mine have parallel sides and gauges reach to bottom so very accurate.

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