The Smithsonian Motor Works Model Engine

by NSI
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ITEM# 12323734
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    ITEM#: 12323734

    This Smithsonian activity set lets you build a real working battery powered, four-cylinder model engine. The learning accessory features real lights and sounds as it lets you see how the pistons fire with the correct timing.

    • Watch the belts and fan turn
    • Includes, over 100 parts that screw together easily
    • Detailed instructions
    • Requires two (2) AA batteries (not included)
    • Recommended for ages 8 years and up
    • Includes 35-inch long x 23-inch wide poster
    • Build a working model of a 4-cylinder engine
    • Valves rock, spark plugs fire and pistons drive crankshaft
    • Battery operated moving parts and lights

    Set includes
    • 2 washers
    • 2 shafts in various lengths
    • 4 exhaust valves
    • 4 intake valves
    • 8 valve stems
    • 4 piston halves
    • 4 connecting rods
    • 8 timing cams
    • 8 rocker arms
    • Crankshaft
    • Crankshaft pullery
    • Fan pullery and fan
    • Engine mounting stand
    • 5 bearings and clutch housing
    • Oil-pan
    • Lower crankcase
    • Rocker arm cover
    • Upper cylinder head
    • Timing belt
    • Timing wheel
    • Timing gear
    • Belt tensioning pullery
    • Lower cylinder head
    • Cylinder block
    • Dipstick
    • Positioning jig
    • Timing belt cover
    • Intake manifold
    • Exhaust manifold
    • Carburetor cover
    • Carburetor bowl
    • Front half of water pump
    • Rear half of water pump
    • Flywheel clutch
    • Fan belt
    • Head basket
    • 8 valve springs
    • Distributor assembly
    • Drive module
    • Battery pack
    • 67 screws


    Type Activity Sets, STEM
    Dimensions 15.0x11.0x2.0
    Model Number 49013
    Country of Origin China

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Recent

    • My big kid's Christmas present :)
      Verified Purchase

      He loves this little motor. It lights up and makes sounds and it kept my oldest(little) child busy putting it together for a few hours. As soon add gifts and dinner were done, he was in his room putting it together and finished that night. He's an adult; man; child....keep them young as much as possible and continue buying toys for adult boys because that's what life: having fun!!! (:

      Read More
      Jane A. H. Jan 3, 2018
    • Loved it was a really cool project for my son
      Verified Purchase

      Absolutely loved it was a little hard to follow the directions but all in all came out successfully working and was a best way to show how the combustion engine works

      Read More
      Shane M. Dec 12, 2017
    • Excellent item
      Verified Purchase

      This model is 5 stars all the way.i got this fir my grandson who loves to help me work on the cars.he loves this model and watches it work and explained how an engine works to everyone who sees it.great gift

      Read More
      jeffrey m. Nov 26, 2017
    • Engine
      Verified Purchase

      This is very good for children to learn how an engine works

      Read More
      OstkUser1428435 Oct 8, 2017
    • Great Gift
      Verified Purchase

      My nephew liked this one for Christmas.

      Read More
      crtx2009 Aug 22, 2017
    • Most Helpful

    • Model Engine
      Verified Purchase

      The engine is fun to assemble when you have all the parts needed. My recommendation is verify that all parts are included before starting the project. Maybe not such a good idea to get this toy from Overstock? Then send one email to NSI. So, far NSI International has sent us the first part and we have requested the second at the time of writing this review. My ten year old is able to assemble the engine with just a little help. There are a couple of mistakes in the instructions. On step 18, follow the sequence A,B,C,D,E,F,G and H for the camshaft but don't try to match the orientation of the parts to the drawing. Instead, A & B, C & D, E & F and G & H will point in opposite directions. Also, on step #19, ignore the drawing showing that the camshaft parts have changed sequence in that step. This was confusing to my son.

      Read More
      w2000 Mar 5, 2011
    • not happy with this item. screw hole don't align
      Verified Purchase

      not at all happy with this product. the crew alignment was off and the whole toy had gaps and didn't fit nicely together. never got it to work properly... most likely because of the alignment

      Read More
      mcgben5 Jan 1, 2012
    • fun plastic model tombuild
      Verified Purchase

      detailed,realistic. Can see operating parts inside a 4 cylinder overhead cam engine.

      Read More
      0p3n May 18, 2013
    • Super cool for preteens
      Verified Purchase

      I ordered this for my 11 year old grandson. He was so excited perfect gift!

      Read More
      bfountain9 Jan 8, 2013
    • parts missing, poor quality brittle plastic-cheap

      Camshaft pieces were missing. I had all 8, but instead of all being different I had a mismatch of 4 of the same, 2 of the same ect. Many pieces already had cracks out of the box and while installing screws usually cracked and not from over tightening, like half way in they would crack. Pieces were badly molded and featured a lot of parts needing deburring before they could be assembled, Instruction illustrations were very poor and incomplete leading to confusion on many steps and having to look at all the other steps to see proper orientation. Several times these were even inconsistent. My daughter got frustrated with this and rightfully so. I'm a mechanic and I think it's garbage. Buy the visable V8 for another $10 it is a lot better made. Still waiting to hear about the missing cam pieces, probably be thrown away....beware.

      Read More
      tomken98 Dec 31, 2011

    Questions & Answers

    • Q:

      "Why did you choose this product?"

      • A:

        It will be perfect for my 13 year old grandson.

      • A:

        Christmas gift

      • A:

        Daughter is interested in science and mechanical items.

      • A:

        My six year old boy loves building things

      • A:

        for my son

      • A:

        My grandson is very inquisitive and analytical. Although the internal combustion engine may be obsolete within his lifetime, I feel that every young man should know the principles and physics of how it works.

      • A:

        For a family member

      • A:

        price and educational

      • A:

        I have a grandson who is very curious.

      • A:

        My grandson has been learning a lot about how engines work ,thought he would like to make his own engine.

      Read more Read less

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    Usually leaves our warehouse in 1-2 business days. *

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    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.