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Aermotor 8 Cycle (PUMP JACK) engine "HIT & MISS"

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Uploaded by on Dec 13, 2007

Engine is around 100 years old, in it's "hay day" it was most used for pumping water, or just about anything from a washing machine to a sharpening stone.

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Education

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Uploader Comments (fm1224)

  • can you rev them? jw and what were they used for, what kind of gas, this stuff is very intresting to me

  • no, they run at one speed, they fire (hit) then miss several times, the weight from the wheel gives it inertia. It was used to run a pump, the one with a handle, only with the handle removed. Back in those days people would take engines of any kind and try to get them to run anything they could from washing machines to grinding stones, those big round ones.

  • Does 8 cycle mean that it fires every 8 cycles? Great sounding engine.

  • Basically yes.

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All Comments (15)

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  • I love watching hit and miss engines, nice muffler also.

  • Nice engine - air cooled without fan! It would be nice 4displacement boats, when it had smaller flywheel.

  • the 4 extra strokes (breathe-exhaust-breathe-exhau­st) were used to help keep the cylinder cool. Remember this is an air-cooled engine with no fan to draw air across the cylinder. Also, the farmer would fill up the fuel tank and then leave...the engine would run until the fuel ran out-totally unsupervised.

  • This is why we have 4 strokes and 2 strokes now.But good to see an old engine tho

  • cool!!!

  • i bet that thing is amazingly effecient

  • yeah they are a very unique engine and a littl bit hard to find parts for. ive got one that im almost done restoring. just waiting for a part to be made and hopefully that will finish it off. then ill post a video of it on here

  • d@mn, never heard of an 8 cycle, neat

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