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Tech Articles
Lost Foam: A New Wave of Sand Casting Swells in the Marine Industry
  With the growing demand for high quality aftermarket marine products, new technological advances have impacted the marine industry in a huge and significant way. While one sand casting...
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History of Johnson/Evinrude V4 Outboard
  One of the most daunting tasks a young outboard technician encounters is sorting out all of the different models...
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30 Years of the OMC Sterndrive
  The OMC stern drive was produced by the Outboard Marine Corporation from 1962 until the end of 1992...
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Sand-Cast vs. Die-Cast
  Whether or not a product is sand-cast or die-cast is determined by many considerations. One of the main considerations that GLM uses for any product, that it produces is: can we improve it?...
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Pistons: Cast vs. Forged
  The major disadvantages to forged pistons are actually a result of the forging process itself. Forging results in a piston that is considerably heavier, than cast pistons, and is limited in the aluminum alloys that can be used to produce the piston...
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Servicing Your Sterndrive/Drive Unit
  How often should it be done? Most manufacturers recommend sterndrive/drive unit maintenance every 50 hours. To most boaters this equates to once per season. Usually the best time to perform this service is the same time that you winterize your boat...
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