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SX230 Resurrection

Discussion in 'Yamaha AR230, SX230, SR230 and 232 Limited / S' started by Brad_Ct, Nov 1, 2018.

  1. Brad_Ct

    Brad_Ct Jet Boat Lover

    Messages:
    84
    Location:
    Farmington, Ct
    Ratings:
    +45 / 1
    Boat Make:
    Yamaha
    Year:
    1997
    Boat Model:
    Exciter
    Boat Length:
    17
    As some of you know I bought a 2006 SX230 from veedubtek last month and as he described it is rough with both engines seized.

    That being said the first thing I did was to pour Marvel Mystery oil into the cylinders and covered it up expecting to not do anything to it until after winter. Well today it was almost 70 and I got out of work early and my curiosity got the best of me so I pulled enough of the cover off to get the into the engine compartment to see what I could see.

    I pulled the starboard coupler shield off and found that somehow the bilge pump hose had gotten wrapped up in the intermediate shaft and was still attached to the end of the hose going out of the boat. I am guessing this happened at a low speed and killed the engine. After removing the hose I put a pipe wrench on the coupler and tried to turn the engine over to no avail. I put some more oil in the cylinders and moved over to the port engine.

    I removed the coupler shield and with a pipe wrench on the coupler to my surprise with a couple whacks on the end of the wrench with my hand I was able to get it to free it up. After rotating the engine back and fourth several times I was able to get full rotation. Not sure how much damage has been done but I think at this point this engine can be saved. Put more oil in the cylinders put the plugs in and covered it back up most likely until spring.

    @veedubtek You went above and beyond with everything you did to get the boat and trailer ready for the shipper, thank you!! IMG_1296.JPG IMG_1303.JPG
     
    Last edited: Nov 2, 2018
    • Like Like x 4
  2. Scottintexas

    Scottintexas Jetboaters Captain

    Messages:
    2,955
    Location:
    Corinth, TX (DFW)
    Ratings:
    +1,950 / 43
    Boat Make:
    Yamaha
    Year:
    2007
    Boat Model:
    AR
    Boat Length:
    23
    Congratulations on your purchase, It's going to be a journey!

    never seen that happen to a bilge pump hose before,

    what type of mechanical experience do you have? Have you ever tore an engine all the way down?

    I would have thought it would be best just to pull the engines out and get them sorted on a stand,
     
  3. Weeb

    Weeb Well-Known Member

    Messages:
    323
    Location:
    Denver NC 28037
    Ratings:
    +160 / 0
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    24
    Mystery oil is great stuff. I started using that when I was a teenager in the 70’s.
     
  4. Brad_Ct

    Brad_Ct Jet Boat Lover

    Messages:
    84
    Location:
    Farmington, Ct
    Ratings:
    +45 / 1
    Boat Make:
    Yamaha
    Year:
    1997
    Boat Model:
    Exciter
    Boat Length:
    17
    @Scottintexas I was an auto mechanic for 10 years and have been in the HVAC field for the past 30. Restored several cars including rebuilding the engines so I'm not to worried about these. My biggest concern is if I need machine work done, going to have to do some research to see if there is anyone good in my area.

    Built this with my fathers help in 1974.
     

    Attached Files:

    Last edited: Nov 2, 2018
    • Like Like x 3
    • Love It Love It x 1
  5. 2kwik4u

    2kwik4u Jet Boat Junkie

    Messages:
    1,121
    Location:
    Georgetown, IN
    Ratings:
    +828 / 15
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    19
    I've brought a number of first gen RX7's back to life with that stuff. Let it sit and soak on the apex and side seals for a few days. Charge a battery, then fire it up. Smokes like dammit, but often fixes a stuck seal. Had a guy bet me the cost of the car it was a blown motor. Ended up getting that car for $100 total, and smiled as I drove it away!
     
    • Funny Funny x 1
  6. swatski

    swatski Jetboaters Fleet Admiral

    Messages:
    8,100
    Location:
    Saint Louis, MO
    Ratings:
    +8,720 / 132
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    Good luck with this project! Watching.

    Fortunately, there are guys here that can help! Like @Scottintexas - there is a number of real world experts in MR-1 everything here including @Jgorm @itsdgm @buckbuck @boudin @cybuch - to name just a few legendary members w/extensive MR-1 rebuilds.

    So, there is ton of info and entire rebuild threads by some of those members. Really awesome stuff.

    --
     
    • Like Like x 1
    • Agree Agree x 1
  7. Brad_Ct

    Brad_Ct Jet Boat Lover

    Messages:
    84
    Location:
    Farmington, Ct
    Ratings:
    +45 / 1
    Boat Make:
    Yamaha
    Year:
    1997
    Boat Model:
    Exciter
    Boat Length:
    17
    Thanks for passing that information on to me, I’m sure I will be reading and asking questions. I really would like to pull the engines before winter but I’m not sure if that is going to happen.
     
  8. Mainah

    Mainah Jetboaters Captain

    Messages:
    2,226
    Location:
    Chapin, SC
    Ratings:
    +2,674 / 19
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    Limited S
    Boat Length:
    24
    Is that the bilge pump hose or is that the hose to the infamous plastic scupper? Could be that it broke off wrapped around the shaft and killed the engine. That may have been it for the previous owner when it was in service and has sat since. Could be more of refurbish than replace lots of parts.
     
  9. Scottintexas

    Scottintexas Jetboaters Captain

    Messages:
    2,955
    Location:
    Corinth, TX (DFW)
    Ratings:
    +1,950 / 43
    Boat Make:
    Yamaha
    Year:
    2007
    Boat Model:
    AR
    Boat Length:
    23
    that was my first thought also but when he said it was the bilge hose I figured he knew better,

    it would certainly make for a believable scenario, somehow the scupper hose comes loose ends up wrapped around the shaft, tears out of the scupper causing the boat to partially submerge, ????

    Good luck Brad and I can't believe your going to make us wait over the winter,
     
    • Agree Agree x 1
  10. bronze_10

    bronze_10 Jetboaters Admiral

    Messages:
    3,898
    Location:
    Raleigh / Wake Forest Area..
    Ratings:
    +3,740 / 69
    Boat Make:
    Yamaha
    Year:
    2008
    Boat Model:
    SX
    Boat Length:
    23
    You may want to reach out to @PaulyB ... he has like 14 or 15 boats at the moment... (more like 3 but still).. he is fixing them all.
     
    • Like Like x 1
  11. Jgorm

    Jgorm Jet Boat Addict

    Messages:
    991
    Location:
    San Diego / Colorado river
    Ratings:
    +633 / 15
    Boat Make:
    Yamaha
    Year:
    2004
    Boat Model:
    AR
    Boat Length:
    23
    I'd put new plugs in and try to fire it asap. Blow the crud out and distribute oil. I find a shop that worked on sport bike engines and they did a great job on my heads. Look at my thread in this section called jgorms build or something like that for lots of pictures.
     
    • Like Like x 2
  12. Brad_Ct

    Brad_Ct Jet Boat Lover

    Messages:
    84
    Location:
    Farmington, Ct
    Ratings:
    +45 / 1
    Boat Make:
    Yamaha
    Year:
    1997
    Boat Model:
    Exciter
    Boat Length:
    17
    It is definitely the bilge line, not really sure how that could happen but it did. I’m thinking that killed the engine and they ran on one engine and filled it with water and then it sat.

    I do have a friend that has a heated garage with a electric chain hoist on a trolly so I do have a place to pull the engines but I have a lot of plans until after the first of the year and then it’s snowmobile season.
     

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