The Smithsonian Motor Works Model Engine - Blue/Clear

by NSI
At Other Retailer : $43.05
Today:$3102
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ITEM# 12323734
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    Details

    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.

    Features: 
    • 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


    Factory sealed boxes cannot be returned if opened.

    Specs

    Features
    Recipient Kids
    • 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.

    • **NOT FOR KIDS**
      Verified Purchase

      This model CAN NOT be built by a child and be an accurate model of a real working engine. However, an adult with a mechanical aptitude can figure it out without too many problems. First of all, the cam-building instructions in step 18 are incorrect and give you an engine that has one of two valves alternating open on every up stroke. On a 4:1 crank/cam ratio the cam has to be built with the (IT/Ex) lobes 90 degrees off of each other, not 180 like the instructions show/say, and the next firing cyl's (IT) lobe matching the (EX) lobe of the firing cyl before. This also means that you can't pay any attention to the letters they have stamped on the cams. But since the images for step 18 and 19 have conflicting cam orders, I don't know how you would use it in the first place. Second, the timing of the distributer isn't the same as the timing of the engine. I had to swap wires to cyl's 3 & 4 to get a firing order of 1-3-4-2. Next, my model came with two crankshaft pulleys and no fan pulley. That had to be "Jerry-Rigged" in order for it to have a working fan. Finally, the exhaust manifold snaps into the intake ports and the intake manifold snaps into the exhaust ports. Who thought of this idea? Like I said before, if you know how a engine works already you can probably figure this out without too many issues. However, if your knowledge of engines mechanics is to be developed by this model, KEEP LOOKING!!!

    • fun plastic model tombuild
      Verified Purchase

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

    • Parts didn't fit.
      Verified Purchase

      The 'belt' that turned the pistons didn't fit right. So the pistons would move, but the fan didn't. Not worth the money or the time it took to figure out the item doesn't work correctly.

    • 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.

    • Requires a lot of Adult Help
      Verified Purchase

      It was a great idea, but very difficult for a 7 year old to build. My son loves engines. We built it together. The timing belt was warped, so it never worked.

    • Fun Project
      Verified Purchase

      I bought this product for my10 year old son (and his dad) to work on because my son and husband really enjoy doing projects like this together and my son is so interested in how things work. As expected my husband did most of the work when it came to reading to reading and understanding the directions putting most of It together as my 10 year old would not have been able to do it himself. And of course my son was the one screwing thing together and putting and doing as much of the work as possible so he could learn, I think it was a bit pricey (all plastic) however it was lots of fun for the two of them and that commercial says it was "priceless". Wish they would come out with a inexpensive "fuel cell" project they could work on.

    • 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

    • Smithsonian Motor Works
      Verified Purchase

      One of the best operating models that I have seen in a long time. Fit and finish were exceptional.

    • Son and husband loved it
      Verified Purchase

      I purchased this as a gift for my son. Dad and son worked on it together and had a really good time. Dad got to explain the car engine without all the grease!!

    • 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.

    • 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

    • fun plastic model tombuild
      Verified Purchase

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

    • Super cool for preteens
      Verified Purchase

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

    • 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.

    • packaged like crap!
      Verified Purchase

      I ordered this for a christmas present for my nephew. It came in the mail packaged in a regular old envelope with no padding. I opened it and the box was literally falling apart! I was no pleased. I'm hoping all of the pieces are there.

    • motor works engine
      Verified Purchase

      easy to order and shipped quickly price was fair and something my grandson had been asking for

    • Son and husband loved it
      Verified Purchase

      I purchased this as a gift for my son. Dad and son worked on it together and had a really good time. Dad got to explain the car engine without all the grease!!

    • The Model Engine is easy to build by an 11 yr old
      Verified Purchase

      Great Christmas gift for my 11 yr old nephew. He enjoyed building it and learning how an engine works! Great educational gift.

    • Don't Bother
      Verified Purchase

      I had to return this model because there was a piece missing and Many of the pieces didn't fit together properly and some wouldn't go together at all.

    • Verified Purchase

      Love the concept of this model, but the construction is so flimsy that several parts have cracked or broken during initial assembly, even with careful handling.

    • Verified Purchase

      Cool ideas so kids can get an image more accurately of what happens in an engine. It’s a good skill to know. Not cheap plastic like the Power Rangers that we got one year in Guadalajara Mexico. Just saying -that was my son’s first experience was shoddy plastic parts. He was 3 or 4. 20 now. I think he still remembers the shock and dismay when arms and legs just started coming off that littlest touch. Sure now it’s funny. ( : Have a great day, hug your kids.

    • Verified Purchase

      This was suggested on line, and I thought that my grandson would like it. He is one of those kids who likes to build things. The purchase was seamless, and my grandson loved it!

    • Verified Purchase

      Put together easily and a fun project. Had similar problems with a missing part or it not working fully when it was first put together.

    • Verified Purchase

      Great educational toy. My Grandson loves it.

    • Verified Purchase

      I bought this as a Christmas gift for my neighbor boy.

    • Verified Purchase

      It's like the real thing, but smaller.i great learning tool for the mechanic to be.

    • Verified Purchase

      bought for my 7 yr old boy was a little to complicated

    • Verified Purchase

      This is really intended for a person with a lot of patience. It is much more difficult for my son to put together than I thought it would be.

    • Verified Purchase

      my grandsons loved it, wish there were expansion packs to go with this to keep building

    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.

      Read more Read less

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