The big old 80's 340 owners thread

Discussion in 'Sport Cruisers' started by Keith the Cop, Oct 15, 2009.

  1. Web-Runner

    Web-Runner New Member

    7
    Jul 10, 2009
    Cologne, Germany
    Old 340er Sundancer
    2 x 7.4 Meruiser
    Hello @all,

    I need 4 new Stickers for the engienes. I mean the oblong stickers 7.4L SR on the plastic covers of the air filters.
    The upload of the photo failt. :huh: Hope you know what I mean.
    Please help. :smt100:smt100

    Best regards from Germany,
    Peter
    _________________________________________
    1988 Sea Ray 340 Sundancer with Twin 454's
     
    Last edited: Jun 30, 2017
  2. northshore

    northshore Well-Known Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Greetings Peter,

    Are looking for are the Mercruiser label? You might have to go back to the factory (Mercruiser) for that.
    Peter, if you have time, stop over at the CSR Members map and put in a pin for Germany!
    http://clubsearay.com/showthread.php/77850-Even-Newer-CSR-Members-Map
    Mercruiser Label.jpg
     
  3. Web-Runner

    Web-Runner New Member

    7
    Jul 10, 2009
    Cologne, Germany
    Old 340er Sundancer
    2 x 7.4 Meruiser
    Hi - I am searcing for the Sea Ray Sticker. It has 7.4L on it an the Sey Ray logo in the middle.
    Size looks the same.
    BR, Peter

    Exists here an instruction for uploading pic´s?
    Maybe a link?
     
    Last edited: Jun 30, 2017
  4. northshore

    northshore Well-Known Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Greetings Peter,

    To be allowed to upload pictures and get message storage on the site, you have to become a sponsor of the site.
    http://clubsearay.com/payments.php
     
  5. Web-Runner

    Web-Runner New Member

    7
    Jul 10, 2009
    Cologne, Germany
    Old 340er Sundancer
    2 x 7.4 Meruiser
    Hi Mike,
    thank´s a lot for providing the info!! Was not known by me.
    Minimun 25 Bucks for uploading? :smt101 :smt101
    I´m reflecting . . .
    BR, Peter

    => see my Avartar :smt001 :smt001
     
    Last edited: Jun 30, 2017
  6. Sublimetime

    Sublimetime Member

    436
    Oct 22, 2007
    clifton nj
    420 da
    454
    go to a sign shop and have it printed.
     
  7. Web-Runner

    Web-Runner New Member

    7
    Jul 10, 2009
    Cologne, Germany
    Old 340er Sundancer
    2 x 7.4 Meruiser
    :smt018 I´ll try to get it original, but at least I must do so. :smt017
    Peter
     
  8. S Lightly Salty

    S Lightly Salty Member

    68
    Sep 3, 2017
    1987 Sea Ray Sundancer 340
    Dual 454 Mercruisers
    I recently purchased an 87 340 Sundancer with the original Vacuflush TDX system. As I understand it I at very least need to diable the overboard discharge. Any insite on what others have done to alter, maintain or upgrade the system is appreciated.
     
  9. NorCal Boater

    NorCal Boater Well-Known Member SILVER Sponsor

    Jan 24, 2008
    Covington, LA
    Cobalt CM23
    GM SB 383" Stroker" Alpha Gen I
    Welcome to the club and congrats on the boat. I owned an '89 for about 4 years and made a lot of modifications.

    Disabling the overboard discharge is as simple as locating the 3-way valve in the waste discharge line and ensuring the handle that diverts the poo overboard is either removed or tied with wire or a tie wrap, so it cannot be moved to the overboard discharge position. You don't say where you are located in your signature but if your boat was operated in US waters there is a good chance this has been done as it is a US Coast Guard requirement.

    The Vacu-Flush system is pretty reliable if you follow some basic rules and best practices. In 10 years (2 different boats and 3 heads) I never had a problem with the vacuum pump. The worst job in maintaining the system is replacing the dreaded Duck-Billed Valves. It's not really a hard job but you have to consider what goes through them and it can be a pretty crappy job....pun intended. The DBVs are usually what will cause the system to lose vacuum and not flush. they either get something stuck in them or they will just fail over time.

    To help prevent the clogging I had 4 simple rules when using the head on my boat.
    1. Four squares of tissue per flush. Yes ladies....4.
    2. If it didn't come out of you it does not go in the toilet
    3. Absolutely no feminine products of any kind in the toilet....ever!
    4. Several small flushes are better that one big one
    Following these simple rules will make your cruise more enjoyable as the Captain will not have to keel haul you.
    Let me know if you have any questions about your boat.

    Shawn
     
  10. S Lightly Salty

    S Lightly Salty Member

    68
    Sep 3, 2017
    1987 Sea Ray Sundancer 340
    Dual 454 Mercruisers
    Ty for the info. I assumed I would need to replace the DBV's at the very least but it's great to hear you have had good luck with the system. At the very least my wife would like to change the toilet itself, do you have any info or resources as to what to replace it with?
     
  11. NorCal Boater

    NorCal Boater Well-Known Member SILVER Sponsor

    Jan 24, 2008
    Covington, LA
    Cobalt CM23
    GM SB 383" Stroker" Alpha Gen I
    Why does she want to change it? There are several options for marine heads but most are about the same bootie size. If you do an online search for Vacuflush a lot of options come up from dealers to sellers on eBay. The Vacuflush brand is made by Dometic. If you want to know what options are available for your system I would gather up as much info as you can on what you have and call them. You can access your holding tank and Vacuflush system by taking off the horizontal panel in aft berth, starboard side.
     
  12. S Lightly Salty

    S Lightly Salty Member

    68
    Sep 3, 2017
    1987 Sea Ray Sundancer 340
    Dual 454 Mercruisers
    I've had my head behind the aft panel quite a bit trying to get familiar with things. I guess she wants it changed because a 32 year old head grosses her out a bit. Is there anyway to verify all is working without adding water to the system? The boat is currently on stands, shrink wrapped and winterized. Although it hasn't stopped me from getting as much done as I possibly can.
     
  13. NorCal Boater

    NorCal Boater Well-Known Member SILVER Sponsor

    Jan 24, 2008
    Covington, LA
    Cobalt CM23
    GM SB 383" Stroker" Alpha Gen I
    No, you really need to have water in the system. But to just test, you could just pour water in the bowl and turn on the system The vacuum generator will start and if everything seals it will create a vacuum and shut off. Then you can step on the pedal for about 2 seconds to flush. The water should suck out quickly and the vacuum generator will start again and, hopefully, shut off. If the generator does not shut off there is something preventing a seal. It will either be the bowl seal which is between the toilet base and the bowl or one or more duck-billed valves.

    Where are you located that you are winterized already? Forecast for 88 today here in New Orleans. I'm getting ready to go out and clean the pool.

    Shawn
     
  14. S Lightly Salty

    S Lightly Salty Member

    68
    Sep 3, 2017
    1987 Sea Ray Sundancer 340
    Dual 454 Mercruisers
    Thank you for all the info. I guess rather than water, I could use marine safe antifreeze and I wouldn't have to worry about purging the water. I'm in CT. The boat was out and winterized when we bought it. Oddly enough it's 80 degrees here today too with almost 90 forecasted for Sunday.
     
  15. northshore

    northshore Well-Known Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Greetings and welcome to the 340 club!
    As far as changing out that head, I would tell the Admiral that you will give it a good scrub. Really no reason to just chuck a good porcelain head. I've done the inner seals/ball, water valve and duck bills on mine since the purchase a few years ago and the job is not all that tough. Rubber gloves for the hands and if the smell really gets to you, put some bengay or vicks right under you nose.

    I use noflex digester in my head so my shit doesn't stink (well, not a lot!)
     
  16. S Lightly Salty

    S Lightly Salty Member

    68
    Sep 3, 2017
    1987 Sea Ray Sundancer 340
    Dual 454 Mercruisers
    Thank you for all the info. Went to the boat this weekend. Tested Head. Creates vacumn and works flawlessly. Unbelievable. Previous owner added a pump out for the 10 gallon treatment tank. Also put a shutoff valve to the discharge pump as well as a switch to manually disable the pump. His wiring is deplorable but I've remedied that. Next question. Can a secondary tank be added after the "10 gallon treat and hold tank" to add capacity? From what I gathered, the head and sink as well as the galley sink go to that 10 gallon tank. The "shower" goes to a fore "bilge box" which float I replaced this weekend and rewired. Sound right? Also can the trim tabs be tested without the engines running? I'm determined to do all the regular maintenance as well as work out as many bugs as I can before the winter hits, so I can hit the water in the spring as gremlin free as humanly possibly.
     
  17. NorCal Boater

    NorCal Boater Well-Known Member SILVER Sponsor

    Jan 24, 2008
    Covington, LA
    Cobalt CM23
    GM SB 383" Stroker" Alpha Gen I
    Your sinks, galley and head, should drain directly overboard. That was standard so unless someone retrofitted the drain lines you should be OK. Also I believe the holding tank is 20 gallons and not 10. I never had a problem with it too full. Yes, you can test the tabs without the engine running. You just need power to the tab pump.
     
  18. S Lightly Salty

    S Lightly Salty Member

    68
    Sep 3, 2017
    1987 Sea Ray Sundancer 340
    Dual 454 Mercruisers
    Once again, ty for all the info and insight. It's been a big help. I have the TDX system which per the manual has a 10 gallon "treat and hold" or "treat and discharge" tank depending on the switch location. From what I've read, I would have to be at least 3 mi. out to legally discharge. 10 gallons seems pretty tight.
     
  19. bigsky999

    bigsky999 New Member

    9
    Sep 27, 2017
    340 Sundancer
    Twin 454s
    I recently purchased a 1987 340 Sundancer and have a simple question that I can't seem to find the answer for. I have the Jabsco electric toilet and can't seem to find out where the water comes from. Does it draw from my fresh water tank or from the river?
     
  20. northshore

    northshore Well-Known Member SILVER Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Greetings and welcome to CSR

    It comes from the freshwater side of the plumbing.
    If you dont have it, you can go up to SeaRay.com and get the manual for your 340.
    This kind of info and a bunch of other stuff is in there to help you out.

    -Mike
     
    Razzle Dazzle likes this.

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