IHC-M 1-1/2 hp. Cam & Crank Gear

The pictures show the cam and crank gears for a 1918 IHC 1-1/2 hp model M engine.  The teeth with the factory punch marks have been indicated with white chalk.  Center lines have been drawn on the shafts to show the middle of the keyways.  The cam gear has 60 teeth and the tooth marked "0" is directly in line with the center of the keyway.  The next 16 teeth have been indicated in a clockwise direction as viewed from outside the engine on the magneto side.  Teeth number 15 and 16 have the factory marks which is very close to 90 degrees rotation.  The tooth directly in line with the keyway on the crank gear is marked.

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Updated 01-23-07

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