waterboy
Jetboaters Captain
- Messages
- 661
- Reaction score
- 748
- Points
- 207
- Location
- Holly Springs, NC
- Boat Make
- Yamaha
- Year
- 2007
- Boat Model
- SX
- Boat Length
- 21
I have posted many times on how I thought my sender recalibration issues were due to ethanol vs non-ethanol fuel impacting the ability of our fuel sender to be able to accurately read fuel levels. Background info is that my sender started reading improperly (not dropping off of full as expected) as I started using non-ethanol fuel. I would check and recalibrate, thinking everything was OK, only to find the problem continued.
This has been documented by others in other posts too. @Julian contacted Centroid at one point and was going to upgrade as noted in this post https://jetboaters.net/threads/fuel-gauge-calibration.2151/page-2#post-62159 . Not sure if he has upgraded.
Well I finally contacted Centroid as well. Here is an email form them documenting the problem and solution.
The new sender costs $72 and will be well worth that for getting one that works again.
This should be plug and play. Order to delivery should be about 2 weeks, wait for decent weather and I will update you all on the swap out.
This has been documented by others in other posts too. @Julian contacted Centroid at one point and was going to upgrade as noted in this post https://jetboaters.net/threads/fuel-gauge-calibration.2151/page-2#post-62159 . Not sure if he has upgraded.
Well I finally contacted Centroid as well. Here is an email form them documenting the problem and solution.
On Mon, Jan 5, 2015 at 4:00 PM, Joel at Centroid (rr) <joel7@cfl.rr.com> wrote:
David:
Gasoline without ethanol (E0) has only half the capacitance of gasoline with 10% ethanol (E10), and the percent ethanol can be anywhere from 0 to 10%. So if you calibrated for Full with E0, than E10 would read 200% (ie pegged) at 100%, 100% at 50%, 20% at 10%, and 0% at 0%. Conversely, if you calibrated for E10, then E0 would read 50% at 100%, 25% at 50%, 5% at 10%, and 0% at 0%.
The new programmable senders have a feature called Full Detection which arms itself when the fuel reading is below 1/2 at powerup and then recalibrates the Full when the FD is armed and the sender powers up with fuel on its FD "stinger" in the top couple inches of the sender. A weakness I've found with this for boats is that boat owners often only fill part way, such that the FD doesnt get a chance to do its thing.
I think the reason you've done well in the past is that I've found the percent ethanol in a given area is surprisingly dependable. For example, the percent ethanol every time I've measured it in our Daytona Beach, FL area has been close to 5%. But now that you switch between E<"your area"> and E0, there isnt a way to get a manual cal that will work for both of those.
Call Mary at 386-423-3574 between 8a-2p EST Mon/THU with the 395088 part number. Tell her its for gasoline you'd like to buy a programmable version of that sender so you'll have Full Detection.
Joel
I called today and ordered the new sender. The part number 395088, has a 12 inch probe on it and was told that this is for the 210/230 vintage boats. This sender will re-calibrate itself as noted above during fill up regardless of the type of gas used and/or the variability of ethanol in the gas too. As Joel mentioned, pump gas can vary anywhere from 0 to 10%. As I started wandering from my home lake, ethanol levels varied and my problems started, never to return to normal again at least for me.David:
Gasoline without ethanol (E0) has only half the capacitance of gasoline with 10% ethanol (E10), and the percent ethanol can be anywhere from 0 to 10%. So if you calibrated for Full with E0, than E10 would read 200% (ie pegged) at 100%, 100% at 50%, 20% at 10%, and 0% at 0%. Conversely, if you calibrated for E10, then E0 would read 50% at 100%, 25% at 50%, 5% at 10%, and 0% at 0%.
The new programmable senders have a feature called Full Detection which arms itself when the fuel reading is below 1/2 at powerup and then recalibrates the Full when the FD is armed and the sender powers up with fuel on its FD "stinger" in the top couple inches of the sender. A weakness I've found with this for boats is that boat owners often only fill part way, such that the FD doesnt get a chance to do its thing.
I think the reason you've done well in the past is that I've found the percent ethanol in a given area is surprisingly dependable. For example, the percent ethanol every time I've measured it in our Daytona Beach, FL area has been close to 5%. But now that you switch between E<"your area"> and E0, there isnt a way to get a manual cal that will work for both of those.
Call Mary at 386-423-3574 between 8a-2p EST Mon/THU with the 395088 part number. Tell her its for gasoline you'd like to buy a programmable version of that sender so you'll have Full Detection.
Joel
The new sender costs $72 and will be well worth that for getting one that works again.
This should be plug and play. Order to delivery should be about 2 weeks, wait for decent weather and I will update you all on the swap out.
