Mercury Outboard Boat

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Bob grubb's virtual Outboard Motor museum

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1955 Oliver 55J Challenger

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5.5hp @ 4000 RPM      Ser.#55J00663
I purchased this motor from a collector from New Jersey in 1977.  It turned out to have a hopelessly rusted fast powerhead.  Many years later I found a lot of parts to a motor like this.  I rebuilt the parts motor powerhead and acquired all the necessary parts to get a complete, running engine.  I first ran the dialed in engine April 27, 2011.
These motors were an update of the Chris Craft outboards done by the Oliver farm tractor company.