fuel sending unit location on 89 sundancer

M

marksnyder

New Member
Sep 30, 2008
7
lake ozarks
Boat Info
340 Sundancer 1989
Engines
twin 454 mercs
Can someone tell me where to find the port side (and aft) fuel sending units on a 1989 340 Sundancer?
 
I'm not familiar with the 340, but on the 300 there is a little compartment right above them. You have to open it and remove a carpeted panel to get to it. One hand above and one hand below deck! It's not easy, but it can be done!
 
Thanks for the reply, will be checking again this weekend - hard to find the little boogers
 
I'm assuming the 340 has the side saddle tanks? They should have access panels! Keep us posted!!
 
Yes, it does have saddle tanks, I only had a chance to look this past weekend and it appears the sending unit on the port side is under the lowest step down into the cabin. I can't be sure at this time since I didn't have time to take it out but it appears to be a hex head bolt with 3 wires coming out of it Red, Green, and Blue???
 
If this boat is a Sundancer it does not have saddle tanks. The Express does but the tanks on the Sundancer are under the mid berth mattress.

I have not had to look for them but I understand that you have to pull out the mattress and there is access somewhere along the aft portion of the mid cabin.

If your boat is an Express I can't help you but there are many 340 Express owners on the board.
 
marksnyder said:
Yes, it does have saddle tanks, I only had a chance to look this past weekend and it appears the sending unit on the port side is under the lowest step down into the cabin. I can't be sure at this time since I didn't have time to take it out but it appears to be a hex head bolt with 3 wires coming out of it Red, Green, and Blue???
Click to expand...

3 Wires? That would lead me to believe you are looking at the water tank sender. I think the Dancer has it under the dinette similar to mine. I'm pretty sure from the wire colors that that is the fresh water tank.
If it is indead an express you would have problems if you couldn't find them. If they were a snake they would bit you. The EC has them about 6 inches outboard of each engine hatch just outboard of the exhaust manifolds. For the Dancer I'm sure there is a hidden cover somewhere to access it. Good luck finding it!
 
Three wires is probably the holding tank. A common ground or power and one wire for almost full and another for don't flush!
 
This is from the owners manual
3879342723_ee117d4dc3_m.jpg

There is a blue if you have the SanX system. maybe that is it. On the Sundancer, the holding tank is in the cabin?? GROSS!! Either way, you should be looking for a pink wire.
 
But he's looking for the FUEL tank sender! Usually that's a two wire system, black and black on my tanks (I think, but I wouldn't swear by it!).
 
Sundancer said:
But he's looking for the FUEL tank sender! Usually that's a two wire system, black and black on my tanks (I think, but I wouldn't swear by it!).
Click to expand...
That's why I told him to look for the pink wire. On my 89 340EC there are 2 wires, a PINK which is the resistor wire and a BLACK which is the ground wire. Ground on mine goes to the tank bolts. Like I said in my last post, Look for the PINK wire!!
 
This is a new boat to me and I was told it had saddle tanks but apparently it does not. It is definitely an 89 340 Sundancer. I will pull out the mid cabin mattres and pull up the panels under the mattress this weekend to try again.
Thanks for all the feedback everyone!
 
Pink? PINK? That's is such a wrong color for a boat! :grin:
 
marksnyder said:
This is a new boat to me and I was told it had saddle tanks but apparently it does not. It is definitely an 89 340 Sundancer. I will pull out the mid cabin mattres and pull up the panels under the mattress this weekend to try again.
Thanks for all the feedback everyone!
Click to expand...
Mark, Have you downloaded the owners manual yet? Or do you already have it? There is a picture of the bilge in there that shows you where things are supposed to be. Our boats use the same manual, and so far I can tell you that the manual isn't always right. Often it's plain misleading, but the fuel tanks are located where they are shown for my boat. Yours should be in an "L" formation near the ER bulkhead I believe. Sorry, I'm of no more help on this one.
 
Yeah, when is Sea Ray going to put the archives back up for the old manuals?? I tried to take a look and it's still down and has been down for quite a while? Wait, new thread.....
 
Thanks Wilee
Yes I finally found the manual (pdf) and it shows the port tank right under the midcabin.
Sundancer
I tried to upload the manual for anyone that needs it but got an error uploading. Sent a message to the Forum admin to try to get it posted here for anyone that needs it.Thanks
 
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