Ultrasonic fuel senders convert to Royce or similar, size needed?

Maybe I'll give the 2 wire SSI's a try, since these are very easy to remove and replace. I've read on the Forum you just use the Black & Pink wires (Purple is not used). It seems others have did this and everything worked.
 
My guess is that it would depend on your fuel gauge. Not sure if it will accept an analog/resister type signal...
 
CJ Martin said:
The Royce senders are not perfect if you are stuck with E-10 gas. I've had to replace two floats now - one was three years old and it was the original black float design, the other was only three weeks old and was the "new, improved" blue float design. Royce was very good about sending replacements for free when I called them, but the guy I talked to admitted they are not exactly sure why the floats fail.

Also be sure to measure both your tanks if you have two. The 320DA tanks are not the same dimensions although they have the same capacity.
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This thread is very timely. I've been having trouble with my fuel gauge after installing the Royce Flexi-Sensor in 2012. Without reading this thread, I went through and troubleshooted everything, assuming the sending unit was fine. Lo and behold, it turned out to be the sending unit. I have a black float.

What is the warranty period? I wonder if I can get a replacement. I was just about to order a new one when I came upon this thread.

Thanks,
 
Jimmy Buoy said:
My guess is that it would depend on your fuel gauge. Not sure if it will accept an analog/resister type signal...
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Well just got off the phone with Lori at SSI and she was no help, even rude. I explained that my sensor had 3 wires and the distributors would only sell 2 wire versions individually. She basically told me tough s&$t call Sea Ray, because they only sell the 3 wire versions in quantities of 150 and US Marine only sells them in quantities of 10. So the decision is made, I will not purchase anything ever again from SSI as the customer service Sucks! Please consider doing the same should these sensors fail on your boat.
 
FYI I bought a new WEMA USA sender for my boat, as they had it in stock and would ship same day vs the two week delay with Royce. No issues with it two months later.
 
firecadet613 said:
FYI I bought a new WEMA USA sender for my boat, as they had it in stock and would ship same day vs the two week delay with Royce. No issues with it two months later.
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Thanks for the information. I actually emailed them yesterday to see if they make their senders with a 3 wire configuration.
 
firecadet613 said:
FYI I bought a new WEMA USA sender for my boat, as they had it in stock and would ship same day vs the two week delay with Royce. No issues with it two months later.
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Great to hear, thanks. I think I'm going to switch to this brand. Plus, ~$20.00 less than a Royce and hopefully lasts longer...
 
The third wire is for an alarm, correct? Technically any two wire sensor will work, you just won't get the high or empty alarm trigger depending on what the setup is.
 
MancaveII said:
The third wire is for an alarm, correct? Technically any two wire sensor will work, you just won't get the high or empty alarm trigger depending on what the setup is.
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Yes, I believe you are correct, the Purple wire is for the Alarm, but I figure if I can get a 3 Wire, I might as well do it.
 
Well everything I'm reading online and in the owners manual says the purple would be going to the ignition switch from the gauge AND/OR serve as a bridge wire to have either fuel gauges read either tank? The wiring diagrams are the greatest, I have to see if the service manual is a better resource.
 
I thought I read somewhere the Purple wire was for the vessel view, but I remember reading on this site dealers hooked up the black and pink wires on the Royce senders and no one said anything about something not working? If the 2 wire senders will work, there are some WEMA's on EBAY for $26.99 + shipping which seems like a really good price.
 
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Spoke with WEMA and they said the Purple Wire is a power lead or for calibration which is not needed on a WEMA sender, so the 2 wire configuration should work. I guess I'll order one on eBAY and give it a try.
 
Received my 21" WEMA sender I ordered on eBay and hooked it up today. Pink to pink and black to black (purple wire not needed), all gauges work. Hopefully it will last, but for $36.99 you can't beat the price.
 
Great to hear. I almost went that route, but got the notice my senders shipped on Wednesday so I should see the Royce senders on Monday and install them next week.
 
Oh no joy, I plugged the starboard side Royce sender into to the harness before taking everything apart and no luck, zip, nada, still no reading on the gauges and I ran the calibration on the vessel view and reads 0 for any recording of data regardless of where I position the sensor along the tube. So I though maybe it has to be in tank, suspended, etc. - I know that was wishful thinking, but when you have no fuel gauges working you'll hope for the best :) No difference. I have to believe something is literally unplugged at this point, just like the transducer was unplugged for no apparent reason.

So where I need help is harness related. Neither of the fuel level three wire plugs at the rear of the engine are plugged in. One is capped on the starboard and the port is uncapped, but no apparent matching plug, at least in wire color. I have the wiring diagrams, but honestly it's impossible to tell where a plug or it's matching connector is located. I'm determined that many of the plugs have a silver pen writing on them to indicate what they are compared to the diagrams, so I'll begin the locate what I can today. Worse case I start probing the unknown plugs with an ohm meter. It was be a lot easier to see what others have plugged in on there boats. I basically need to find connectors M1B and M2B and ensure they are connected into a C-24 connector - appears that only one wire per side (Pink on port, pink/grn on starboard).

What is throwing me off is the fuel level connection is a three wire plug on the engine harness, but since both are unplugged, I'm hoping that's the missing link. Sorry for the rambling, hopefully someone can point me in the right direction or provide some photos.

http://forum.chaparralboats.com/index.php?showtopic=3349

Just added last line - I may have my first place to look. I do not recall a paddle well or plug like this, but I'm going to look for it.
 
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MancaveII said:
Oh no joy, I plugged the starboard side Royce sender into to the harness before taking everything apart and no luck, zip, nada, still no reading on the gauges and I ran the calibration on the vessel view and reads 0 for any recording of data regardless of where I position the sensor along the tube. So I though maybe it has to be in tank, suspended, etc. - I know that was wishful thinking, but when you have no fuel gauges working you'll hope for the best :) No difference. I have to believe something is literally unplugged at this point, just like the transducer was unplugged for no apparent reason.

So where I need help is harness related. Neither of the fuel level three wire plugs at the rear of the engine are plugged in. One is capped on the starboard and the port is uncapped, but no apparent matching plug, at least in wire color. I have the wiring diagrams, but honestly it's impossible to tell where a plug or it's matching connector is located. I'm determined that many of the plugs have a silver pen writing on them to indicate what they are compared to the diagrams, so I'll begin the locate what I can today. Worse case I start probing the unknown plugs with an ohm meter. It was be a lot easier to see what others have plugged in on there boats. I basically need to find connectors M1B and M2B and ensure they are connected into a C-24 connector - appears that only one wire per side (Pink on port, pink/grn on starboard).

What is throwing me off is the fuel level connection is a three wire plug on the engine harness, but since both are unplugged, I'm hoping that's the missing link. Sorry for the rambling, hopefully someone can point me in the right direction or provide some photos.

http://forum.chaparralboats.com/index.php?showtopic=3349

Just added last line - I may have my first place to look. I do not recall a paddle well or plug like this, but I'm going to look for it.
Click to expand...


Did you try hooking the fuel sender up to a multi meter in continuity/ohms mode and check that the resistance varies as you slide the float? If the value changes, the sender is working properly.
 
Senders work, clearly something disconnected as I have to find the plug or wire...I'll have this solved today as it started pouring rain yesterday when I started to get into the engine bay.
 
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