Official 1980's Weekender/Sundancer 300 thread

Discussion in 'Classic Sea Rays' started by Lucky's, May 28, 2012.

  1. QT1

    QT1 Member

    283
    Oct 20, 2016
    Belair, MD
    1988 300 Weekender
    5.7 Mercruisers, Westerbeke genny (that works!), Avon dinghy w/ Yamaha
    outboard
    No problem . We were at season's end of fall baseball for my oldest. 14-1 win to end the season
     
  2. trflgrl

    trflgrl Member SILVER Sponsor

    881
    Jun 23, 2014
    Middle Tennessee
    1989 Sundancer 300
    Twin 350 Merc/Alpha 1 Gen 1; Quicksilver 4.0 gen
    Boat got an oil change this weekend.
    First Mate got a bruised sternum.

    MechanicsWoes.jpg

    And on that note....how in the heck do you disassemble the thingy (you know me, always using technical terms) to replace the fuel pump filter cartridge? Fuel/water separator wasn't too bad, oil filter sucked as usual but was doable after fishing the wrench back out with a coat hanger....but that last one is really pesky. I Googled and YouTubed and couldn't find a diagram or tutorial anywhere--everything was focused on the fuel/water separator.
     
  3. Eric Martin

    Eric Martin New Member

    3
    Sep 27, 2017
    1988 Sea Ray 300 Sundancer
    Mercrusiers 5.7
    Need help. Can someone tell me the correct sterndrive for 88 sundancer with 5.7 mercruisers. I know its a alpha 1 gen 1 but need correct gear ratio.

    Thanks
     
  4. TitanTn

    TitanTn Member

    247
    Jul 12, 2015
    Chattanooga, TN
    1986 Saltare, 1987 300 Weekender, 1998 400 Express
    454 direct drive; twin 350s, twin 3116TA
    If I'm following your thingy reference, there's a bolt on the bottom of the bowl. Back the bolt out and you'll be able to replace the filter.
     
  5. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    I think it’s either 147:1 or 150:1.
     
  6. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Are you talking about Fram’s mounted inline just outside of each tank. Cartridge is FRAM 1110PL or equivalent?
    That’s what my 87 300 Sundancer had.
    If so, there is a hex head on top, right in the middle. Back it out while holding the canister to keep it from falling or spilling fuel.
    Those also uses 2 “O” rings each that come with the filters. The large thin one is easier to see than the smaller (ring size) one that you have to pull out and replace.
     
  7. trflgrl

    trflgrl Member SILVER Sponsor

    881
    Jun 23, 2014
    Middle Tennessee
    1989 Sundancer 300
    Twin 350 Merc/Alpha 1 Gen 1; Quicksilver 4.0 gen
    Yep, right up under the deck just outside the fuel tank; what you're describing is what FM attempted, so we'll revisit after expanding our inventory of hex wrenches. None of those we had were the right size, the adjustable just couldn't get in there, and we opted not to manhandle it regardless of frustration level.

    Another vote for my next boat being a 340 with the 6.2s, just for the little bit of extra wiggle room in the ER.
     
  8. SCORPIO

    SCORPIO Active Member SILVER Sponsor

    Apr 7, 2008
    Delaware
    1989 300 DA
    Twin 5.7 Merc Alpha I
    Do yourself a favor and get a combination wrench of the correct size that has a ratchet on the box end, that makes that job a lot easier.

    From you comments, I'm guessing you don't have remote oil filters on your engines? That is a very worth while upgrade and not all that expensive. The filter remotely mounts on the port riser of each engine, two hoses run down to an adapter that is attached where the oil filter used to mount on the block.
     
    JVM225 likes this.
  9. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Can't remember, but I think mine were 9/16".
    Second vote for the ratcheting combination wrenches. They are handy tools to have around in general, but especially handy for some of the tight spaces you have to get on to on a boat.
    I've got a standard set and a metric set.
     
    SCORPIO likes this.
  10. trflgrl

    trflgrl Member SILVER Sponsor

    881
    Jun 23, 2014
    Middle Tennessee
    1989 Sundancer 300
    Twin 350 Merc/Alpha 1 Gen 1; Quicksilver 4.0 gen
    Correct. Bought one at a great price from a fellow classics owner ( ;) ) and planned to get another, but with work travel and other unexpected events blowing up my calendar, scheduling installation has been a PITA so I opted for old school fluid change to make sure the engines don't suffer from the delays.

    FM's probably trying to figure out a Valentine's gift....combo wrench set would be as good as anything, right? :cool:
     
    SCORPIO likes this.
  11. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    [QUOTE="SCORPIO, post: 972235, member: 2975

    From you comments, I'm guessing you don't have remote oil filters on your engines? That is a very worth while upgrade and not all that expensive. The filter remotely mounts on the port riser of each engine, two hoses run down to an adapter that is attached where the oil filter used to mount on the block.[/QUOTE]
    Another great suggestion. I did that when I repowered my old 300. It made the job so much neater and easier.
    It was impossible to get those filters out of the stock location and over those stringers without making a mess. I used to stuff multiple oil absorber mats down there before attempting to get them off.
    If I remember.......getting the filters off was pretty straight forward but getting them over the stringer without a spill was impossible. It think the starboard motor was worse than the port but neither was a picnic.
     
  12. trflgrl

    trflgrl Member SILVER Sponsor

    881
    Jun 23, 2014
    Middle Tennessee
    1989 Sundancer 300
    Twin 350 Merc/Alpha 1 Gen 1; Quicksilver 4.0 gen
    We cut a large hole into the top/side of a plastic gallon jug, leaving the neck and handle intact, and wedged it under the filter so FM could drop it in once detached, then maneuver the whole contraption without spilling oil into the bilge; it worked well for the fuel/water separator, too.
     

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