Official 2003.5-2008 340 Sundancer Thread

I feel your pain. I also bought a fresh water boat and now is in salt. #1....Are the manifolds Aluminum? 2008 , they may not be. If so, change them next year. I ran mine 1 year in salt and really saw a difference. They were original from 2004 and looked great, until 1 year in salt. After I installed the Cast manifolds I installed this flush system (see thread) It's a little involved to install, but it WORKS. Good luck with your boat.

http://www.clubsearay.com/index.php?threads/new-flush-system-installed.87193/#post-984263
Thanks!! looks great
 
Hello all. Just got our first and only boat two years ago,it came from Potomac river so was in fresh water. It’s now in peconic bay. Anyway we bring it home for winter storage . Going into cabin last week I noticed the reverse polarity lights were light and don’t remember it last season. All lights and outlets work fine and had a goldenrod that worked fine all winter. I then realized I used a different extension cord. Changed it and light out. So the question is did I do any damage that I can’t see at this point?
 
Hard to tell. If everything is working properly - i.e. shore power and battery charger, just may be a watch and see. I had that happen to me at a marina once, but recognized it right away. One 30 amp tower gave me reverse polarity and the one 20 feet away was fine. ? ? ? No ill effects, but was only connected briefly. I now make sure my main panel breakers are off before I plug in, therefore it forces me to check it before it gets to my system.
 
Hello all. Just got our first and only boat two years ago,it came from Potomac river so was in fresh water. It’s now in peconic bay. Anyway we bring it home for winter storage . Going into cabin last week I noticed the reverse polarity lights were light and don’t remember it last season. All lights and outlets work fine and had a goldenrod that worked fine all winter. I then realized I used a different extension cord. Changed it and light out. So the question is did I do any damage that I can’t see at this point?


More than likely no problem. One big note here - if your 2003.5 boat was in fresh water you did confirm that your manifolds are NOT aluminum. Boats from those years in fresh many times had the AL manifolds that seemed to last very well. That is not true for use in salt water where they deteriorate quickly. Simply check with a good magnet.

-Kevin
 
Thanks. I’ll find out soon when I try and start motors and make sure no leaks before it goes in. Also found one of the bolts that hold the transom zinc was broken. And it was the bolt hooked to grounding system. Wondering when I repair if I should run a jumper to second bolt so if something like this happens again at least I’ll still be connected to zinc
 
Thanks. I’ll find out soon when I try and start motors and make sure no leaks before it goes in. Also found one of the bolts that hold the transom zinc was broken. And it was the bolt hooked to grounding system. Wondering when I repair if I should run a jumper to second bolt so if something like this happens again at least I’ll still be connected to zinc

That sounds like a good idea.

-Kevin
 
Anyone running the seablazex underwater lights from lumitec? Seems to be some good sales on them. I was wondering how many u have on transom, 3 or 4?
 
Anyone running the seablazex underwater lights from lumitec? Seems to be some good sales on them. I was wondering how many u have on transom, 3 or 4?
What kind of deals are they? I make my own, but wonder what they cost. Thanks
 
I have a wiring question about my 2008. I just had to replace my shower sump box and the other bilge pump and switch in that same area below the cabin floor because of a rusty mess left by the PO when the AC pan rusted. They were such a mess that I ripped it all out without noting the existing wiring. I took a multimeter and identified 2 negative and 2 positive wires. I have since wired the pump and switch in the shower box and the other pump and switch and both work from their respective float switches but I have 2 extra brown wires coming from the boat and I can't seem to find out what they are for. I thought maybe a manual switch but tested the switch on the helm and that switch only makes the pump in the engine room turn on. what am I missing? Any help would be greatly appreciated.
 
I have a wiring question about my 2008. I just had to replace my shower sump box and the other bilge pump and switch in that same area below the cabin floor because of a rusty mess left by the PO when the AC pan rusted. They were such a mess that I ripped it all out without noting the existing wiring. I took a multimeter and identified 2 negative and 2 positive wires. I have since wired the pump and switch in the shower box and the other pump and switch and both work from their respective float switches but I have 2 extra brown wires coming from the boat and I can't seem to find out what they are for. I thought maybe a manual switch but tested the switch on the helm and that switch only makes the pump in the engine room turn on. what am I missing? Any help would be greatly appreciated.


I just did this last season for different reasons, but don’t recall the exact wiring setup. If you can wait a day or two, I’ll get to the boat and post pics ..unless someone else is able to jump in sooner of course.
 
I just did this last season for different reasons, but don’t recall the exact wiring setup. If you can wait a day or two, I’ll get to the boat and post pics ..unless someone else is able to jump in sooner of course.

That would be great. Thanks!
 
Question: I want to keep an extra set of duckbill valves on my 2007 340. I cannot determine if the 340 uses 1.5 inch or 2 inch valves. Anyone know the answer?
 
I did mine 2 seasons ago because I had lost suction. NOT a fun job and certainly not one I would want to do while away on a trip, etc. If you are contemplating having a problem, change them out now so you know you are good to go. You will also want to clean out the rest of the system while you have it apart. I cannot remember what size mine were (2006 340), but I pulled the unit apart and while I cleaned everything up, the wife ran to West Marine and got the replacements. I am sure someone will pipe in here with the size, but I cannot remember. Also, take pictures as you take it apart, very important the duck bills go back in exactly how they came out. There is 4 of them.
 
I did mine 2 seasons ago because I had lost suction. NOT a fun job and certainly not one I would want to do while away on a trip, etc. If you are contemplating having a problem, change them out now so you know you are good to go. You will also want to clean out the rest of the system while you have it apart. I cannot remember what size mine were (2006 340), but I pulled the unit apart and while I cleaned everything up, the wife ran to West Marine and got the replacements. I am sure someone will pipe in here with the size, but I cannot remember. Also, take pictures as you take it apart, very important the duck bills go back in exactly how they came out. There is 4 of them.
2" on our 2006 340DA
 
I did mine 2 seasons ago because I had lost suction. NOT a fun job and certainly not one I would want to do while away on a trip, etc. If you are contemplating having a problem, change them out now so you know you are good to go. You will also want to clean out the rest of the system while you have it apart. I cannot remember what size mine were (2006 340), but I pulled the unit apart and while I cleaned everything up, the wife ran to West Marine and got the replacements. I am sure someone will pipe in here with the size, but I cannot remember. Also, take pictures as you take it apart, very important the duck bills go back in exactly how they came out. There is 4 of them.
I would offer to go to West Marine if my wife wanted to change them!! I know that won't happen!!! I have great suction now, so I will wait until it fails. Most of our trips are not very long! thanks for the info. When I am at the boat, I may be able to find the manual for the head system. I saw the other reply that someone said they are 2 inch. Glad to know there are 4 so I can keep them handy.
 
Anyone running the seablazex underwater lights from lumitec? Seems to be some good sales on them. I was wondering how many u have on transom, 3 or 4?
I have 2 Seablaze X Spectrums. I'll take some pics and post this week. I'm very happy with them.
 
Has anyone replaced their Main Battery Solenoid Switches? Easy to do? My OCD has taken over and since the bulbs have burnt out I ordered their replacements.
 
Has anyone replaced their Main Battery Solenoid Switches? Easy to do? My OCD has taken over and since the bulbs have burnt out I ordered their replacements.
Super-easy, I just did mine. Wires are color-coded so it's hard to mess up. Do one at a time so you can match the other one.
 

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