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TECH ARTICLES

The Evolution of a Dream: GLM's Conversion Kits
  GLM Products, Inc. takes things a few fathoms deeper. While most aftermarket marine parts manufacturers outsource their design and production, GLM's specialty is...
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Superior Manifolds: High Quality, Cost-Effective Aftermarket Marine Parts
  To some observers, the aftermarket parts business may seem rather repetitive. After all, it's already been done, right? In many industries this may be true, but GLM Products, Inc. has redefined the meaning...
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GLM Offers Help for Dealers
  Over the past 20 years, GLM Products, Inc. has developed an extensive line of innovative and cost-effective marine engine and drive parts. With over 4,000 line items available, including many that are only available from GLM...
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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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  Instruction Sheets
Bearing & Gear Set Install
 
Bravo Water Hose Kit
 
Thermostat Assembly
 
V8 Distributors No. 71240
 
No. 34650 Gasket Modify
 
Diaphragm No. 40280
 
Motor Mounts No. 21045
 
V6 Conversion Kit
 
V8 Conversion Kit
 
Water Pump No. 12060
 
Water Pump Installation
 
Impeller Install No. 89710
 
Seawater Pump No. 12088
 
No 12097 Pulley Mounting
 
Check Valve Kit No. 40250
 
10 Hr. Gear Break-in
 
V4 Prop Shaft/Clutch Dog
 
Prop Shaft No. 22417
 
Shift Cable Tool No. 90520
 
Height Guage No. 90530
 
Shimming Tool No. 90330

 

  Tech Sheets
Manifold Features
 
Exhaust System Eval
 
Dry Joint Alternative
 
Gasket Technology
 
Upper Gear Sets
 
Heavy Duty Gear Set
 
Water/Fuel Separator Kits
 
Gimbal Bearings
 
Johnson/Evinrude OBs
 
Inline Fuel Filters
 
Aluminum Anodes
 
Needle & Caged Bearings
 
Seawater Pumps
 
Recirculating H2O Pumps
 
Engine Couplers
 
Marine Service Tools
 
Volvo Quick Reference
 
460 Adapter Plate

 

  Dimension,Diagram,Template
Merc Manifolds
 
OMC Manifolds
 
Volvo Penta Manifolds
 
Barr/Indmar/MPower Manifolds
 
Merc - OMC Overlap
 
Water/Fuel Separator Mounting Bracket
 
Oil Seal & O-ring
Size Charts
 
Templates for Plug Kit
No. 16005

 

  Tech Articles
The Evolution of a Dream: GLM's Conversion Kits
 
Superior Manifolds:
High Quality, Cost-Effective Aftermarket Marine Parts
 
GLM offers Help
for Dealers
 
Lost Foam:
A New Wave of Sand Casting Swells in the Marine Industry
 
History of Johnson/
Evinrude V4 Outboard
 
30 Years of the
OMC Sterndrive
 
Sand-Cast vs. Die-Cast
 
Pistons:
Cast vs. Forged
 
Servicing Your
Sterndrive/Drive Unit

 

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