Anyone calibrate their fuel gauge in Smartcraft?

paulswagelock

Well-Known Member
Oct 25, 2010
2,196
pa
Boat Info
2018 SDX 270 OB 300 Verado
Engines
Verado 300
My 270 has Smartcraft gauges. This weekend I used it at my home port for the first time. I do not have any history with the boat up to this point - new to me. After an afternoon ride, I was putting it back on the trailer for storage for another week or two until it stays at my slip. While pulling it on the trailer, it was on an upward angle ( slight), and stalled. It would not restart, so I cranked it on the trailer the rest of the way. I pulled it to the parking lot with a slight decline so the bow was a little lower, connected to muffs, and started and ran fine again.

The gas gauge showed around 1/4 when coming in, maybe a little lower when inclined on the trailer when it stalled. It showed a little over 1/4 when declined in the parking lot. So I have to assume the gas was low enough in the tank to miss the pickup while inclined on the trailer. So to me, the gauge is not calibrated correctly for this to happen.

my choices are to calibrate the smartcraft fuel gauge, or simply remember that 1/4 on the gauge is not an usable about of fuel in the tank. Has anyone ever recalibrated their smartcraft fuel gauge? If so, did you use the default option, or actually try to do it by filling the tank and calibrating as it was filling?
 
SmartCraft allows you to calibrate the tank two ways. The first is a simple automatic method the second more complex where you run the tank empty put enough fuel in to be ¼, then calibrate, then add more to ½ and calibrate, etc.

The complex method is meant for tanks that are not symmetrical, or may be tapered. Fuel readings are based on the change in height of a float on the sender. If the volume of fuel measured by say an inch of float height is different at the top of the tank than the bottom then you need to use the complex method. If the tank is uniform and each inch of height has the same volume use the default method. Just make sure you do this with the boat in the water.

Henry


Sent from my iPad using Tapatalk HD
 
SmartCraft allows you to calibrate the tank two ways. The first is a simple automatic method the second more complex where you run the tank empty put enough fuel in to be ¼, then calibrate, then add more to ½ and calibrate, etc.

The complex method is meant for tanks that are not symmetrical, or may be tapered. Fuel readings are based on the change in height of a float on the sender. If the volume of fuel measured by say an inch of float height is different at the top of the tank than the bottom then you need to use the complex method. If the tank is uniform and each inch of height has the same volume use the default method. Just make sure you do this with the boat in the water.

Henry


Sent from my iPad using Tapatalk HD
Your posting mentions that there is a simple automatic method to calibrate as well as a more complex method. I have read the manual as well as watched the video and see nothing about the default or simple procedure. The manual simply states that it is available, the video shows the full calibration procedure. Is there anything anyone knows of as to how to do the default procedure? Any help would be most welcome as the fuel gauge registers no changes at the moment. This is for a 2003 Sundeck 240 with SmartCraft v. 3.04

Thanks
 
Do you know the exact size of your fuel tank?

If so, fill it completely, reset the "fuel used" and compare that with the fuel level as you use the boat.

For example, my 2007 240 Sundeck has a 65 gallon tank. I reset the "fuel used" each time I fill it up. By the time I hit 1/2 tank, I'm right around 30 gallons used, 1/4 tank shows 45-47 gallons used.

You can also check the fuel level "%" on smart craft to see if that coincides with the individual fuel level gauge.

One would assume (there's that word again) that the pick-up would be near the rear of the tank in a boat because of the way it sits in the water and how it rides with the bow higher than the stern, which adds a bit of confusion as to why it would run out of fuel while inclined up onto the trailer?
 
I've heard that described as "reviving a necropost" on other forums...
 

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