5.7 Starter Issue

Discussion in 'Mechanic Recommendation Forum' started by Curtis Macdonald, Jul 28, 2018.

  1. Curtis Macdonald

    Curtis Macdonald New Member

    23
    May 24, 2018
    1990 Sea Ray Sundancer 250DA
    5.7 SE106 stern drive
    I bought this boat and soon found that it has a starter issue. It's a 1990 250DA with a single 5.7 Mercruiser.
    Someone has apparently replaced the original starter with an Arco aftermarket.
    The problem is that sometimes it jumps and skips while attempting to turn the engine over. I pulled the starter off and noticed some minor starter gear damage and the ring gear still looks ok, but you can see where it is showing some signs of wear. So I bought a new starter and installed it. It worked fine for the first couple of times I started it, then back to the same issue. I noticed that the starter bracket was missing? And I did noticed some slight bent starter bolts.
    So I have just ordered another starter and the starter brace. Does anyone have any advise? Is that starter brace that significant? Thanks!
     
  2. Bt Doctur

    Bt Doctur Well-Known Member

    Aug 21, 2010
    New Jersey
    Ex SRV 240 Weekender twin
    in between
    most hi-tork PMG starters dont use the brace, the old style need the brace .
    If the bolts are bending there either too long, the wrong ones or were not tightened
     
  3. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    Raw Water Cooled
    V-Drive Transmissions
    I see you are a new member....welcome to CSR....

    are the new starters you are installing 'ignition protected' marine starters that will not ignite any gas fumes that may be present in the engine room?.....automobile starters are not 'ignition protected'.....

    just want to be sure you know the difference so we can keep you around for a while.....;)....

    cliff
     
  4. Curtis Macdonald

    Curtis Macdonald New Member

    23
    May 24, 2018
    1990 Sea Ray Sundancer 250DA
    5.7 SE106 stern drive
    Yes, but thanks for checking on me! LOL
    Bigger problem now, found water in the oil........motor coming out now. I'm going completely through it now. I wish the previous owner had of been up front with me. At least I will have the peace of mind when I get finished. I'm a mechanic by trade (buses), but this is my first Mercruiser pull. I'll get there, with some occasional questions. Thank you.
     
  5. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    Raw Water Cooled
    V-Drive Transmissions
    with your background you should have no problems rebuilding the Mercruiser engine if that is what is needed....you may need to buy, borrow or rent a few special tools......

    good luck and keep us posted....

    cliff
     
  6. Curtis Macdonald

    Curtis Macdonald New Member

    23
    May 24, 2018
    1990 Sea Ray Sundancer 250DA
    5.7 SE106 stern drive
    Pulled the motor......ring gear on the flywheel is toast. Rebuilding the motor right now. Just ordered a 168 tooth ring gear as well. Nice clean engine compartment and factory wiring. Can't wait to set her back in and watch it perform on the water. This boat has never run right since I bought it.
     
  7. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    Raw Water Cooled
    V-Drive Transmissions
    let's see some pics!.....

    cliff
     

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