• Engine and Drive Repair Topics

    by Published on 12-05-2011 06:34 PM
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    Winter Checklist

    • Stabilize fuel, then fill fuel tank. A full tank prevents water
      condensation from getting in tank and causing corrosion. Draining fuel
      does not prevent varnish formation in engines as fuel is left behind in the
      fuel system. Run engine for a few minutes to get treated gas throughout system.
    by Published on 10-02-2011 01:36 PM
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    A question we are often asked is "which is better… OEM or Aftermarket parts?"

    When you take your boat to the dealership's service department for repairs you're probably getting Original Equipment Manufacturer (OEM) engine parts. However, if you take your boat to an independent shop, you'll most likely get aftermarket parts. Is there anything wrong with that? Does a less expensive part mean ...
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    Reversible Tilt Trim Motors

    Today’s tilt-trim motors use wire wound or permanent magnet fields. Before you can accurately test the motor you must know what type it is.

    Wire wound field motors will normally have three wires and will usually have four screws placed around the
    perimeter of the motor case. If the motor has only two wires; it is usually a permanent magnet field motor.
    However, some older Mercury Marine wire wound field ...
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    Water intrusion is the #1 cause of starter failure. If water gets pumped into the motor portion of the starter from the flywheel, it will not drain out. Rust and corrosion will destroy the inside components of the starter.

    The #2 cause of starter failure ...
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    The battery is the heart of the electrical system. Always start troubleshooting at the battery. Never store a battery in a discharged state. Never add anything except distilled water to a battery.

    A good battery can provide four or five years of worry-free service with the right kind of care. Bigger is better! The battery you are replacing does not have to be the same size as the original. It is always better to have extra battery capacity. ...
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    For every 23 AMPS of alternator output about one horsepower is required.
    FOR EXAMPLE: A 12 volt,115 AMP alternator requires 5 horsepower.
    (115 divided by 23 = 5 horsepower). A 24 volt unit requires twice the horsepower.

    Alternators are designed to supply current for the accessory load and maintain the charge of the ...
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    Safety Modifications

    Electrical systems[3]
    • Marine starter motor — it has an internal screen to minimize the egression of spark movements.
    • Marine alternator differs from an automobile alternator — it has an internal screen to minimize the egression

  • Recent Forum Posts


    Re: Shifter Issues


    racerone Today, 08:12 AM Go to last post

    Re: Honda BF90A hose

    Yes I have seen that too but not the right area plus those I believe are water hoses. This one is much smaller and have not found any diagram for it.

    Brian4591 Today, 08:10 AM Go to last post

    Re: Evinrude 70

    Maybe the partially full filter is in fact NORMAL.-----After all it runs good at full throttle so the fuel pump must be working.-----Post your model #

    racerone Today, 08:09 AM Go to last post

    Re: Heya! ‘80 Evinrude 18hp - ILLINOIS

    A 1980's outboard at 18 HP ?-----Start with posting a model #.--Or a picture of it.------And I agree with the above comments.-----Read some books / get

    racerone Today, 08:03 AM Go to last post

    Re: Mercruiser to crusader

    That is correct!
    While this is not an OEM style connection, your open spade style wire fittings and screw-down connections will make for better

    RicardoMarine Today, 07:44 AM Go to last post