Replaced fuel sending unit

[Larryrsf]

Regarding my old V20 1974 with saddle tanks, were there fuel senders and fuel level gauges? I don't see any wires on top or on the sides of the twin 20 gallon gas tanks. Could the sender connections be behind the tank against the side of the boat? I was reluctant to pull the tanks if I didn't have to.

I am presently in process of replacing all the gas lines and adding a big new removable filter like we see in car engine oil system. This boat has been sitting idle since 2001 or possibly before that!

Larry

[macojoe]

I had a 76 with same tanks. no sender on them eaither, but I did not mind as when one tank went empty I would switch to the other and knew when to head home. Later when I converted mine to OB I added a third tank were the motor use to be and never worried again!
By the way I have never had a working gas gauge on any boat, and have never run out, by filling after each trip.

[Larryrsf]

Since I wrote that I have pulled the tanks and my boat expert and I saw an old level sender unit on top of each tank. He said those are essentially "always" non-working after sitting this much time, but that new senders are quite reasonable, $35 or so. It needs to be 17" for my saddle tanks.

But I will need to either add one gauge and a switch or two gauges on the dash somewhere. This boat apparently never had fuel gauges. There was a piece of round doweling in the boat, and I would bet that is what the fisherman used for their fuel level.

BTW, I dumped both tanks into plastic gas containers and poured about 7 gallons of that stuff into my Durango gas tank (which had 3/4 of good gas). I saw several discussion comments wherein boat experts suggested that because a car's fuel filters are really good, and because the dilution of that much good gas will make that old gas and oil mixture harmless.

I drove the Durango today and noticed nothing different.

Larry

[Destroyer]

Originally Posted by Larryrsf

Since I wrote that I have pulled the tanks and my boat expert and I saw an old level sender unit on top of each tank. He said those are essentially "always" non-working after sitting this much time, but that new senders are quite reasonable, $35 or so. It needs to be 17" for my saddle tanks.

But I will need to either add one gauge and a switch or two gauges on the dash somewhere. This boat apparently never had fuel gauges. There was a piece of round doweling in the boat, and I would bet that is what the fisherman used for their fuel level.

BTW, I dumped both tanks into plastic gas containers and poured about 7 gallons of that stuff into my Durango gas tank (which had 3/4 of good gas). I saw several discussion comments wherein boat experts suggested that because a car's fuel filters are really good, and because the dilution of that much good gas will make that old gas and oil mixture harmless.

I drove the Durango today and noticed nothing different.

Larry

At the end of every season I always empty my tank as much as possible and put in my Lawn Mowers, Snow Blowers, whatever... anything but the boat engine. I've never had a problem with any of the gas, but why take the chance in my boat's engine?

[lathehand]

Befor I replaced my sending units .I made a simple old school measureing stick.I graduated from a empty tank and marcked it off at 5 gals 7 1/2 gals and so on till full.The sending units work fine now but they can't be as accurate as my stick