horizon

  1. G

    Engine Shuts Down

    Hello, I have a 07 320 Sundancer with 350 Mag Horizon engines and for the past year I’ve been chasing an intermittent shut down on my starboard engine. Wondering if anyone else may have experienced the same situation. Some background. Last year our first trip out with the boat the...
  2. D

    Mercruiser 7.4 Horizon compression and hard warm starts

    With these Starboard engine compression test numbers.... what should I do??? .. the motor start hard when warm.. but if you goose the throttle a few times it does start and runs well. I have about 1300 hours on these Merc 7.4 Horizons 2001 vintage! 2 165 4 124 6 145 8 120 1 105 3 159 5 150 7 160
  3. J

    2007 6.2 mpi cranks but won't starr

    My 2007 mercruiser 6.2 mx MPI cranks fine but won't fire up. Batteries are ok. I checked the fuel and the engine is getting roughly 40psi so I don't think the fuel is the issue. Spark plugs seem to be working fine too so I cannot figure out why it won't fire up. Any advice would be much...
  4. T

    Port engine burning 20% more fuel

    1998 Sea Ray 370 Sundancer with 454 MPI Horizons. Approximate hours -600. Port engine burns 20% more fuel at idle and underway compared to starboard engine. Had a scanner checking for codes and data. There was an error code for a faulty TPS. Also the port engine "surges" up and down in...
  5. jaxon5000

    New Member, New 2006 Black on Black Sundancer 320, Horizon 350 V-Drive

    Looking to bounce ideas off others with similar boats
    • jaxon5000
    • Thread
    • 2006 320 horizon sundancer v-drive
    • Replies: 16
    • Forum: Who's Who
  6. C

    340 w/ 8.1 has muffler leak??? Bueller?

    I've got an '01 340 Sundancer with 8.1 Horizons. The port side muffler is leaking from around the base. The muffler looks like it is comprised of a round cylinder with a top cap and bottom cap fitting. Water is leaking, only when the engine is running, and escaping from between the bottom cap...
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