40 sedan bridge forum

ZZ13 said:
Thanks team. I may pull the sender and check it out when I get to Ft Pierce. Since my first post it dropped another 1/4. It’s down to 1/4 now. Then it bounced up to 1/2 for a bit and worked it’s way back down to 1/4. I checked engine room for a fuel flood. Nothing.
Click to expand...
If those senders are original, it's probably time to change them out; especially if you are going through all the work to pull them. I as well as many others here have changed to these; no looking back:
https://kus-usa.com/product/sss-ssl-sender/
 
ttmott said:
If those senders are original, it's probably time to change them out; especially if you are going through all the work to pull them. I as well as many others here have changed to these; no looking back:
https://kus-usa.com/product/sss-ssl-sender/
Click to expand...

I am due to update mine as well. Does anybody know what length is required for our tanks?
 
She quit.
F7A0C325-D367-408D-9288-A26EDEFC4A9E.jpeg
 
I believe those kuss senders I bought came with a gasket I am not sure what type of gasket it was but I did bolt them back down with the new fasteners they provided and never had a problem
 
Nepenthe said:
Thank you! Do you recall which gasket material you used? Cork, Nitrile, or Viton?
Click to expand...
I believe the gaskets that come with the KUS senders are Buna-N rubber.
You may know this but the screw hole pattern for the SAE style senders only allows the sender to clock one way. If you don't know that then look closely at the spacing on the existing and clock the replacement the same; just saving you a lot of time trying to get that figured out if you didn't know.
 
Nepenthe said:
Thank you! Do you recall which gasket material you used? Cork, Nitrile, or Viton?
Click to expand...
Over a beer you can let me know how much of a PIA it is to change these out.
 
Steve S said:
Over a beer you can let me know how much of a PIA it is to change these out.
Click to expand...
Looks like the access plate for the starboard sender I need to take out is directly under the bench seat support. I’ll find out if the sender will angle out or if I have to cut away some of the sofa support. Anyone know?
 
I have an idea. We are living on our boat for the next few months and we do a lot of stove cooking. Each burner draws 11 amps. All three on at 33 amps seems to avoid tripping the 30 amp breaker. But generating all the heat we usually want the salon ac on. But no go due to over amperage. So what do you all think if I swap the two ac unit wires? Move the salon unit to the stateroom breaker on the other leg. And move the stateroom wire to the salon breaker. There really is nothing on the other leg we need to worry about causing a trip when the salon ac is running. Obviously I’d swap them back should I sell the boat one day.

I guess another option is to move the stove breaker to the other 30 amp leg.
 
Last edited:
Hmmm. I don’t know Bill. We have never tripped a breaker on the boat. We have tripped breakers on the dock when we end up in a slip that only has 30a. Never tipped a 30 on a dock with 2 30’s plugged in and never tripped a 50a with the 50 to 2 30’s on. Guess I can’t swear that she had all 3 burners going at once though even though we cook a lot on the boat. I don’t see a problem with doing what you are thinking though. Depends on how you plan to do the loading. Go for it!
 
Took the cover plate off. You can see the sender there although the picture is a bit dark. Looks pretty straight forward to unscrew and lift out. I guess that’s the vent line to the left.
18F5A4C3-78E0-405E-842E-2B4219AC5A05.jpeg
 
Well, well, well. Ground connection had come apart. Now to clean it and reconnect and see what happens. Update. No change. Need new sender. I’ll order a couple Kus senders. What’s the consensus? Buy a sender 1” shorter than tank height?
4FDE25DC-596A-4A84-82CF-BB8836B45650.jpeg
 
Last edited:
ZZ13 said:
Well, well, well. Ground connection had come apart. Now to clean it and reconnect and see what happens. Update. No change. Need new sender. I’ll order a couple Kus senders. What’s the consensus? Buy a sender 1” shorter than tank height?
View attachment 117759
Click to expand...
Between 1/2" and 1" from bottom. Tank material is 1/8" thick. Buy two senders. Hook them up to the wires before putting in the tank and verify float position vs gauge reading. This way you will have a "calibration" between real fuel level in the tank and what the gauge needle indicates.
 
ttmott said:
Between 1/2" and 1" from bottom. Tank material is 1/8" thick. Buy two senders. Hook them up to the wires before putting in the tank and verify float position vs gauge reading. This way you will have a "calibration" between real fuel level in the tank and what the gauge needle indicates.
Click to expand...
Thanks Tom. I’ll go with 1” short. That when when it reads empty I’ll still have some spit in the bottom.
 
ZZ13 said:
Thanks Tom. I’ll go with 1” short. That when when it reads empty I’ll still have some spit in the bottom.
Click to expand...
Just remember that there is some “unusable” fuel remaining in the tank. Your “spit” may be unusable.
 
Lets talk trim tabs.
There is another thread in elsewhere on this site but I wonder how 400 db owners are doing with theirs. Mine do almost nothing. I tested them on the hard and they do extend but the boat needs alot more. I was wondering if adding a spacer under the ram would force the tabs lower for more effect. Forgot to measure them but I think they are about 1 x 2 feet with a single ram each. Has anyone made theirs larger or installed Ziptrim interseptors? I was hoping they would be at the fall boat show but didn't find them. Digging th3 stern in is my only complaint about the boats performance.
 
Njlarry said:
Lets talk trim tabs.
There is another thread in elsewhere on this site but I wonder how 400 db owners are doing with theirs. Mine do almost nothing. I tested them on the hard and they do extend but the boat needs alot more. I was wondering if adding a spacer under the ram would force the tabs lower for more effect. Forgot to measure them but I think they are about 1 x 2 feet with a single ram each. Has anyone made theirs larger or installed Ziptrim interseptors? I was hoping they would be at the fall boat show but didn't find them. Digging th3 stern in is my only complaint about the boats performance.
Click to expand...
It's hard to see a difference from the bridge. I really cannot see anything, BUT that being said, I see a difference in the speed on my chart plotter's GPS SOG. So I usually trim for the best speed that can achieve at the power level that I have selected.
 
Interesting. I definitely notice a difference. Especially during the sea trial when the surveyor was "testing" them.
 
You must log in or register to reply here.

Forum statistics

Threads
113,184
Messages
1,428,135
Members
61,094
Latest member
Linword
Back
Top